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78L05

型号：

78L05

描述：

正电压稳压器[ POSITIVE-VOLTAGE REGULATORS ]

品牌：

TI[ TEXAS INSTRUMENTS ]

页数：

13 页

PDF大小：

196 K

下载PDF手册
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
D PACKAGE  
(TOP VIEW)  
3-Terminal Regulators  
Output Current up to 100 mA  
No External Components  
1
2
3
4
8
7
6
5
OUTPUT  
COMMON  
COMMON  
NC  
INPUT  
Internal Thermal-Overload Protection  
Internal Short-Circuit Current Limiting  
COMMON  
COMMON  
NC  
Direct Replacements for Fairchild µA78L00  
Series  
NC – No internal connection  
description  
LP PACKAGE  
(TOP VIEW)  
This series of fixed-voltage integrated-circuit  
voltage regulators is designed for a wide range of  
applications. These applications include on-card  
regulation for elimination of noise and distribution  
problems associated with single-point regulation.  
In addition, they can be used with power-pass  
elementstomakehigh-currentvoltageregulators.  
One of these regulators can deliver up to 100 mA  
of output current. The internal limiting and  
thermal-shutdown features of these regulators  
makethemessentiallyimmunetooverload. When  
used as a replacement for a zener diode-resistor  
combination, an effective improvement in output  
impedance can be obtained, together with lower  
bias current.  
INPUT  
COMMON  
OUTPUT  
TO–226AA  
PK PACKAGE  
(TOP VIEW)  
INPUT  
COMMON  
OUTPUT  
The µA78L00C series is characterized for  
operation over the virtual junction temperature  
range of 0°C to 125°C.  
AVAILABLE OPTIONS  
PACKAGED DEVICES  
SMALL OUTLINE  
(D)  
PLASTIC CYLINDRICAL  
(LP)  
SOT-89  
(PK)  
CHIP  
FORM  
(Y)  
V
O(NOM)  
(V)  
T
J
OUTPUT VOLTAGE TOLERANCE  
5%  
10%  
5%  
10%  
5%  
10%  
2.6  
5
6.2  
8
µA78L02ACD  
µA78L05ACD  
µA78L06ACD  
µA78L08ACD  
µA78L09ACD  
µA78L10ACD  
µA78L12ACD  
µA78L15ACD  
–
µA78L02ACLP  
µA78L05ACLP  
µA78L06ACLP  
µA78L08ACLP  
µA78L09ACLP  
µA78L10ACLP  
µA78L12ACLP  
µA78L15ACLP  
µA78L02CLP  
µA78L05CLP  
µA78L06CLP  
µA78L08CLP  
µA78L09CLP  
µA78L10CLP  
µA78L12CLP  
µA78L15CLP  
µA78L02ACPK  
µA78L05ACPK  
µA78L06ACPK  
µA78L08ACPK  
µA78L09ACPK  
µA78L10ACPK  
µA78L12ACPK  
µA78L15ACPK  
µA78L02CPK  
µA78L05CPK  
µA78L06CPK  
µA78L08CPK  
µA78L09CPK  
µA78L10CPK  
µA78L12CPK  
µA78L15CPK  
µA78L02Y  
µA78L05Y  
µA78L06Y  
µA78L08Y  
µA78L09Y  
µA78L10Y  
µA78L12Y  
µA78L15Y  
µA78L05CD  
µA78L06CD  
µA78L08CD  
µA78L09CD  
–
0°C to  
125°C  
9
10  
12  
15  
µA78L12CD  
µA78L15CD  
D and LP packages are available taped and reeled. Add the suffix R to the device type (e.g., µA78L05ACDR). The PK package is only available  
taped and reeled (e.g., µA78L02ACPKR). Chip forms are tested at T = 25°C.  
A
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright 1999, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
schematic  
INPUT  
20 kΩ  
OUTPUT  
1 kΩ to 14 kΩ  
1.4 kΩ  
COMMON  
NOTE: Resistor values shown are nominal.  
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
†
absolute maximum ratings over operating temperature range (unless otherwise noted)  
µA78Lxx  
UNIT  
µA78L02AC, µA78L05C–µA78L09C, µA78L10AC  
30  
35  
Input voltage, V  
V
I
µA78L12C, µA78L12AC, µA78L15C, µA78L15AC  
D package  
LP package  
PK package  
97  
Package thermal impedance, θ (see Notes 1 and 2)  
JA  
156  
°C  
52  
Virtual junction temperature range, T  
0 to 150  
260  
°C  
°C  
°C  
J
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds  
Storage temperature range, T  
–65 to 150  
stg  
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and  
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not  
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
NOTES: 1. Maximum power dissipation is a function of T (max), θ , and T . The maximum allowable power dissipation at any allowable  
J
JA  
A
ambient temperature is P = (T (max) – T )/θ . Operating at the absolute maximum T of 150°C can impact reliability. Due to  
D
J
A
JA  
J
variations in individual device electrical characteristics and thermal resistance, the built-in thermal-overload protection may be  
activated at power levels slightly above or below the rated dissipation.  
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace  
length of zero.  
recommended operating conditions  
MIN  
4.75  
7
MAX  
20  
UNIT  
µA78L02AC  
µA78L05C, µA78L05AC  
µA78L06C, µA78L06AC  
µA78L08C, µA78L08AC  
µA78L09C, µA78L09AC  
µA78L10AC  
20  
8.5  
20  
10.5  
11.5  
12.5  
14.5  
17.5  
23  
Input voltage, V  
V
I
24  
25  
µA78L12C, µA78L12AC  
µA78L15C, µA78L15AC  
27  
30  
Output current, I  
100  
125  
mA  
O
Operating virtual junction temperature, T  
0
°C  
J
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
electrical characteristics at specified virtual junction temperature, V = 9 V, I = 40 mA (unless  
I
O
otherwise noted)  
µA78L02C  
†
PARAMETER  
TEST CONDITIONS  
UNIT  
T
J
MIN  
TYP  
MAX  
2.7  
25°C  
2.5  
2.45  
2.45  
2.6  
V = 4.75 V to 20 V,  
I
O
= 1 mA to 40 mA  
I
2.75  
2.75  
100  
75  
Output voltage  
V
0°C to 125°C  
0°C to 125°C  
I
= 1 mA to 70 mA  
O
V = 4.75 V to 20 V  
20  
16  
51  
12  
6
I
Input voltage regulation  
Ripple rejection  
25°C  
25°C  
25°C  
mV  
dB  
V = 5 V to 20 V  
I
V = 6 V to 20 V,  
f = 120 Hz  
43  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
50  
25  
O
O
Output voltage regulation  
mV  
I
Output noise voltage  
Dropout voltage  
f = 10 Hz to 100 kHz  
25°C  
25°C  
25°C  
125°C  
30  
1.7  
3.6  
µV  
V
6
5.5  
2.5  
0.1  
Bias current  
mA  
mA  
V = 5 V to 20 V  
I
Bias current change  
0°C to 125°C  
I
O
= 1 mA to 40 mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 10 V, I = 40 mA (unless  
I
O
otherwise noted)  
µA78L05C  
µA78L05AC  
†
PARAMETER  
TEST CONDITIONS  
UNIT  
T
J
MIN  
TYP  
MAX  
5.4  
MIN  
TYP  
MAX  
5.2  
25°C  
4.6  
4.5  
4.5  
5
4.8  
4.75  
4.75  
5
V = 7 V to 20 V,  
I
O
= 1 mA to 40 mA  
I
5.5  
5.25  
5.25  
150  
100  
Output voltage  
V
0°C to 125°C  
0°C to 125°C  
I
= 1 mA to 70 mA  
5.5  
O
V = 7 V to 20 V  
32  
26  
49  
15  
8
200  
150  
32  
26  
49  
15  
8
Input  
voltage regulation  
I
25°C  
25°C  
25°C  
mV  
dB  
V = 8 V to 20 V  
I
Ripple rejection  
V = 8 V to 18 V,  
f = 120 Hz  
40  
41  
I
I
I
= 1 mA to 100 mA  
60  
30  
60  
30  
Output  
voltage regulation  
O
mV  
= 1 mA to 40 mA  
O
Output  
noise voltage  
f = 10 Hz to 100 kHz  
25°C  
42  
42  
µV  
Dropout voltage  
25°C  
25°C  
1.7  
3.8  
1.7  
3.8  
V
6
5.5  
1.5  
0.2  
6
5.5  
1.5  
0.1  
Bias current  
mA  
mA  
125°C  
V = 8 V to 20 V  
I
Bias  
current change  
0°C to 125°C  
I
O
= 1 mA to 40 mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
electrical characteristics at specified virtual junction temperature, V = 12 V, I = 40 mA (unless  
I
O
otherwise noted)  
µA78L06C  
µA78L06AC  
†
PARAMETER  
TEST CONDITIONS  
UNIT  
T
J
MIN  
TYP  
MAX  
6.7  
MIN  
TYP  
MAX  
6.45  
6.5  
25°C  
5.7  
5.6  
5.6  
6.2  
5.95  
5.9  
6.2  
V = 8.5 V to 20 V,  
I
O
= 1 mA to 40 mA  
I
6.8  
Output voltage  
V
0°C to 125°C  
0°C to 125°C  
6.8  
5.9  
6.5  
I
= 1 mA to 70 mA  
O
V = 8.5 V to 20 V  
35  
29  
48  
16  
9
200  
150  
35  
29  
48  
16  
9
175  
125  
Input  
voltage regulation  
I
25°C  
25°C  
25°C  
mV  
dB  
V = 9 V to 20 V  
I
Ripple rejection  
V = 10 V to 20 V,  
I
f = 120 Hz  
39  
40  
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
80  
40  
80  
40  
Output  
voltage regulation  
O
O
mV  
I
Output  
noise voltage  
f = 10 Hz to 100 kHz  
25°C  
46  
46  
µV  
Dropout voltage  
25°C  
25°C  
1.7  
3.9  
1.7  
3.9  
V
6
5.5  
1.5  
0.2  
6
5.5  
1.5  
0.1  
Bias current  
mA  
mA  
125°C  
V = 9 V to 20 V  
I
Bias  
current change  
0°C to 125°C  
I
O
= 1 mA to 40 mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 14 V, I = 40 mA (unless  
I
O
otherwise noted)  
µA78L08C  
µA78L08AC  
†
PARAMETER  
TEST CONDITIONS  
UNIT  
T
J
MIN  
7.36  
7.2  
TYP  
MAX  
8.64  
8.8  
MIN  
TYP  
MAX  
8.3  
25°C  
8
7.7  
7.6  
7.6  
8
V = 10.5 V to 23 V,  
I
O
= 1 mA to 40 mA  
I
8.4  
Output voltage  
V
0°C to 125°C  
0°C to 125°C  
7.2  
8.8  
8.4  
I
= 1 mA to 70 mA  
O
V = 10.5 V to 23 V  
42  
36  
46  
18  
10  
200  
150  
42  
36  
46  
18  
10  
175  
125  
Input voltage  
regulation  
I
25°C  
25°C  
25°C  
mV  
dB  
V = 11 V to 23 V  
I
Ripple rejection  
V = 13 V to 23 V,  
I
f = 120 Hz  
36  
37  
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
80  
40  
80  
40  
Output voltage  
regulation  
O
O
mV  
I
Output  
noise voltage  
f = 10 Hz to 100 kHz  
25°C  
54  
54  
µV  
Dropout voltage  
25°C  
25°C  
1.7  
4
1.7  
4
V
6
5.5  
1.5  
0.2  
6
5.5  
1.5  
0.1  
Bias current  
mA  
mA  
125°C  
V = 5 V to 20 V  
I
Bias  
current change  
0°C to 125°C  
I
O
= 1 mA to 40 mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
electrical characteristics at specified virtual junction temperature, V = 16 V, I = 40 mA (unless  
I
O
otherwise noted)  
µA78L09C  
µA78L09AC  
†
PARAMETER  
TEST CONDITIONS  
UNIT  
T
J
MIN  
TYP  
MAX  
9.7  
MIN  
TYP  
MAX  
9.4  
25°C  
8.3  
8.1  
8.1  
9
8.6  
8.55  
8.55  
9
V = 12 V to 24 V,  
I
O
= 1 mA to 40 mA  
I
9.9  
9.45  
9.45  
175  
125  
Output voltage  
V
0°C to 125°C  
0°C to 125°C  
9.9  
I
= 1 mA to 70 mA  
O
V = 12 V to 24 V  
45  
40  
45  
19  
11  
225  
175  
45  
40  
45  
19  
11  
Input  
voltage regulation  
I
25°C  
25°C  
25°C  
mV  
dB  
V = 13 V to 24 V  
I
Ripple rejection  
V = 15 V to 25 V, f = 120 Hz  
36  
38  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
90  
40  
90  
40  
Output  
voltage regulation  
O
O
mV  
I
Output  
noise voltage  
f = 10 Hz to 100 kHz  
25°C  
58  
58  
µV  
Dropout voltage  
25°C  
25°C  
1.7  
4.1  
1.7  
4.1  
V
6
5.5  
1.5  
0.2  
6
5.5  
1.5  
0.1  
Bias current  
mA  
mA  
125°C  
V = 13 V to 24 V  
I
Bias  
current change  
0°C to 125°C  
I
O
= 1 mA to 40 mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 14 V, I = 40 mA (unless  
I
O
otherwise noted)  
µA78L10AC  
†
PARAMETER  
TEST CONDITIONS  
UNIT  
T
J
MIN  
TYP  
MAX  
10.4  
10.5  
10.5  
175  
25°C  
9.6  
9.5  
9.5  
10  
V = 13 V to 25 V,  
I
O
= 1 mA to 40 mA  
I
Output voltage  
V
0°C to 125°C  
0°C to 125°C  
I
= 1 mA to 70 mA  
O
V = 13 V to 25 V  
51  
42  
44  
20  
11  
I
Input voltage regulation  
Ripple rejection  
25°C  
25°C  
25°C  
mV  
dB  
V = 14 V to 25 V  
125  
I
V = 15 V to 25 V,  
f = 120 Hz  
37  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
90  
40  
O
O
Output voltage regulation  
mV  
I
Output noise voltage  
Dropout voltage  
f = 10 Hz to 100 kHz  
25°C  
25°C  
25°C  
125°C  
62  
1.7  
4.2  
µV  
V
6
5.5  
1.5  
0.1  
Bias current  
mA  
mA  
V = 14 V to 25 V  
I
Bias current change  
0°C to 125°C  
I
O
= 1 mA to 40 mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
electrical characteristics at specified virtual junction temperature, V = 19 V, I = 40 mA (unless  
I
O
otherwise noted)  
µA78L12C  
TYP  
µA78L12AC  
†
PARAMETER  
TEST CONDITIONS  
UNIT  
T
J
MIN  
11.1  
10.8  
10.8  
MAX  
12.9  
13.2  
13.2  
250  
MIN  
TYP  
MAX  
12.5  
12.6  
12.6  
250  
25°C  
12  
11.5  
11.4  
11.4  
12  
V = 14 V to 27 V,  
I
O
= 1 mA to 40 mA  
I
Output voltage  
V
0°C to 125°C  
0°C to 125°C  
I
= 1 mA to 70 mA  
O
V = 14.5 V to 27 V  
55  
49  
42  
22  
13  
55  
49  
42  
22  
13  
Input  
voltage regulation  
I
25°C  
25°C  
25°C  
mV  
dB  
V = 16 V to 27 V  
200  
200  
I
Ripple rejection  
V = 15 V to 25 V, f = 120 Hz  
36  
37  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
100  
50  
100  
50  
Output  
voltage regulation  
O
O
mV  
I
Output  
noise voltage  
f = 10 Hz to 100 kHz  
25°C  
70  
70  
µV  
Dropout voltage  
25°C  
25°C  
1.7  
4.3  
1.7  
4.3  
V
6.5  
6
6.5  
6
Bias current  
mA  
mA  
125°C  
V = 16 V to 27 V  
I
1.5  
0.2  
1.5  
0.1  
Bias  
current change  
0°C to 125°C  
I
O
= 1 mA to 40 mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 23 V, I = 40 mA (unless  
I
O
otherwise noted)  
µA78L15C  
TYP  
µA78L15AC  
†
PARAMETER  
TEST CONDITIONS  
UNIT  
T
J
MIN  
13.8  
13.5  
13.5  
MAX  
MIN  
14.4  
TYP  
MAX  
15.6  
25°C  
15  
16.2  
15  
V = 17.5 V to 30 V,  
I
O
= 1 mA to 40 mA  
Output  
voltage  
I
16.5 14.25  
16.5 14.25  
300  
15.75  
15.75  
300  
V
0°C to 125°C  
0°C to 125°C  
I
= 1 mA to 70 mA  
O
65  
58  
65  
58  
Input  
voltage  
regulation  
V = 17.5 V to 30 V  
I
mV  
dB  
25°C  
25°C  
25°C  
250  
250  
V = 20 V to 30 V  
I
Ripple  
rejection  
V = 18.5 V to 28.5 V, f = 120 Hz  
33  
39  
34  
39  
I
25  
15  
150  
75  
25  
15  
150  
75  
Output  
voltage  
regulation  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
O
mV  
O
Output  
noise voltage  
f = 10 Hz to 100 kHz  
25°C  
25°C  
82  
82  
µV  
Dropout  
voltage  
1.7  
4.6  
1.7  
4.6  
V
25°C  
6.5  
6
6.5  
6
Bias current  
mA  
mA  
125°C  
V = 10 V to 30 V  
I
1.5  
0.2  
1.5  
0.1  
Bias  
current change  
0°C to 125°C  
I
O
= 1 mA to 40 mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
electrical characteristics at specified virtual junction temperature, V = 9 V, I = 40 mA, T = 25°C  
I
O
J
(unless otherwise noted)  
µA78L02Y  
†
PARAMETER  
Output voltage  
UNIT  
V
TEST CONDITIONS  
MIN  
TYP  
2.6  
20  
16  
51  
12  
6
MAX  
V = 4.75 V to 20 V  
I
Input voltage regulation  
Ripple rejection  
mV  
dB  
V = 5 V to 20 V  
I
V = 6 V to 20 V,  
f = 120 Hz  
I
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
O
O
Output voltage regulation  
mV  
Output noise voltage  
Dropout voltage  
Bias current  
f = 10 Hz to 100 kHz  
30  
1.7  
3.6  
µV  
V
mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 10 V, I = 40 mA, T = 25°C  
I
O
J
(unless otherwise noted)  
µA78L05Y  
†
PARAMETER  
Output voltage  
UNIT  
V
TEST CONDITIONS  
MIN  
TYP  
5
MAX  
V = 7 V to 20 V  
32  
26  
49  
15  
8
I
Input voltage regulation  
Ripple rejection  
mV  
dB  
V = 8 V to 20 V  
I
V = 8 V to 18 V,  
I
f = 120 Hz  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
O
Output voltage regulation  
mV  
O
Output noise voltage  
Dropout voltage  
Bias current  
f = 10 Hz to 100 kHz  
42  
1.7  
3.8  
µV  
V
mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 12 V, I = 40 mA, T = 25°C  
I
O
J
(unless otherwise noted)  
µA78L06Y  
†
PARAMETER  
Output voltage  
UNIT  
V
TEST CONDITIONS  
MIN  
TYP  
6.2  
35  
29  
48  
16  
9
MAX  
V = 8.5 V to 20 V  
I
Input voltage regulation  
Ripple rejection  
mV  
dB  
V = 9 V to 20 V  
I
V = 10 V to 20 V,  
f = 120 Hz  
I
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
O
Output voltage regulation  
mV  
O
Output noise voltage  
Dropout voltage  
Bias current  
f = 10 Hz to 100 kHz  
46  
1.7  
3.9  
µV  
V
mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
electrical characteristics at specified virtual junction temperature, V = 14 V, I = 40 mA, T = 25°C  
I
O
J
(unless otherwise noted)  
µA78L08Y  
†
PARAMETER  
Output voltage  
UNIT  
V
TEST CONDITIONS  
MIN  
TYP  
8
MAX  
V = 10.5 V to 23 V  
42  
36  
46  
18  
10  
54  
1.7  
4
I
Input voltage regulation  
Ripple rejection  
mV  
dB  
V = 11 V to 23 V  
I
V = 13 V to 23 V,  
I
f = 120 Hz  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
O
Output voltage regulation  
mV  
O
Output noise voltage  
Dropout voltage  
Bias current  
f = 10 Hz to 100 kHz  
µV  
V
mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 16 V, I = 40 mA, T = 25°C  
I
O
J
(unless otherwise noted)  
µA78L09Y  
†
PARAMETER  
Output voltage  
UNIT  
V
TEST CONDITIONS  
MIN  
TYP  
9
MAX  
V = 12 V to 24 V  
45  
40  
45  
19  
11  
I
Input voltage regulation  
Ripple rejection  
mV  
dB  
V = 13 V to 24 V  
I
V = 15 V to 25 V,  
I
f = 120 Hz  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
O
Output voltage regulation  
mV  
O
Output noise voltage  
Dropout voltage  
Bias current  
f = 10 Hz to 100 kHz  
58  
1.7  
4.1  
µV  
V
mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 14 V, I = 40 mA, T = 25°C  
I
O
J
(unless otherwise noted)  
µA78L10Y  
†
PARAMETER  
Output voltage  
UNIT  
V
TEST CONDITIONS  
MIN  
TYP  
10  
MAX  
V = 13 V to 25 V  
51  
I
Input voltage regulation  
Ripple rejection  
mV  
dB  
V = 14 V to 25 V  
I
42  
V = 15 V to 25 V,  
I
f = 120 Hz  
44  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
20  
O
Output voltage regulation  
mV  
11  
O
Output noise voltage  
Dropout voltage  
Bias current  
f = 10 Hz to 100 kHz  
62  
µV  
V
1.7  
4.2  
mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
electrical characteristics at specified virtual junction temperature, V = 19 V, I = 40 mA, T = 25°C  
I
O
J
(unless otherwise noted)  
µA78L12Y  
†
PARAMETER  
Output voltage  
UNIT  
V
TEST CONDITIONS  
MIN  
TYP  
12  
MAX  
V = 14.5 V to 27 V  
55  
I
Input voltage regulation  
Ripple rejection  
mV  
dB  
V = 16 V to 27 V  
I
49  
V = 15 V to 25 V,  
I
f = 120 Hz  
42  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
22  
O
Output voltage regulation  
mV  
13  
O
Output noise voltage  
Dropout voltage  
Bias current  
f = 10 Hz to 100 kHz  
70  
µV  
V
1.7  
4.3  
mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
electrical characteristics at specified virtual junction temperature, V = 23 V, I = 40 mA, T = 25°C  
I
O
J
(unless otherwise noted)  
µA78L15Y  
†
PARAMETER  
Output voltage  
UNIT  
V
TEST CONDITIONS  
MIN  
TYP  
15  
MAX  
V = 17.5 V to 30 V  
65  
I
Input voltage regulation  
Ripple rejection  
mV  
dB  
V = 20 V to 30 V  
I
58  
V = 18.5 V to 28.5 V,  
I
f = 120 Hz  
39  
I
I
= 1 mA to 100 mA  
= 1 mA to 40 mA  
25  
O
Output voltage regulation  
mV  
15  
O
Output noise voltage  
Dropout voltage  
Bias current  
f = 10 Hz to 100 kHz  
82  
µV  
V
1.7  
4.6  
mA  
†
Pulse-testing techniques maintain T as close to T as possible. Thermal effects must be taken into account separately. All characteristics are  
measured with a 0.33-µF capacitor across the input and a 0.1-µF capacitor across the output.  
J
A
10  
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
APPLICATION INFORMATION  
V
I
V
O
µA78Lxx  
0.33 µF  
0.1 µF  
Figure 1. Fixed-Output Regulator  
IN  
OUT  
µA78Lxx  
+
–
G
V
I
I
L
COM  
–V  
O
Figure 2. Positive Regulator in Negative Configuration (V Must Float)  
I
Input  
Output  
µA78Lxx  
R1  
R2  
I
O
0.33 µF  
0.1 µF  
Figure 3. Adjustable-Output Regulator  
µA78Lxx  
Input  
R1  
Output  
V
0.33 µF  
O(Reg)  
I
O
I
O
= (V /R1) + I Bias Current  
O O  
Figure 4. Current Regulator  
11  
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
µA78L00 SERIES  
POSITIVE-VOLTAGE REGULATORS  
SLVS010I – JANUARY 1976 – REVISED JULY 1999  
APPLICATION INFORMATION  
1N4001  
20-V Input  
µA78L15  
V
O
= 15 V  
1N4001  
0.33 µF  
0.1 µF  
0.1 µF  
0.33 µF  
1N4001  
–20-V Input  
µA79L15  
V
O
= –15 V  
1N4001  
Figure 5. Regulated Dual Supply  
operation with a load common to a voltage of opposite polarity  
In many cases, a regulator powers a load that is not connected to ground but, instead, is connected to a voltage  
source of opposite polarity (e.g., operational amplifiers, level-shifting circuits, etc.). In these cases, a clamp  
diode should be connected to the regulator output as shown in Figure 6. This protects the regulator from output  
polarity reversals during startup and short-circuit operation.  
µA78Lxx  
V
I
V
O
1N4001  
or  
Equivalent  
– V  
O
Figure 6. Output Polarity-Reversal-Protection Circuit  
reverse-bias protection  
Occasionally, the input voltage to the regulator can collapse faster than the output voltage. This can occur, for  
example, when the input supply is crowbarred during an output overvoltage condition. If the output voltage is  
greater than approximately 7 V, the emitter-base junction of the series-pass element (internal or external) could  
break down and be damaged. To prevent this, a diode shunt can be employed as shown in Figure 7.  
V
I
V
O
µA78Lxx  
Figure 7. Reverse-Bias-Protection Circuit  
12  
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
IMPORTANT NOTICE  
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue  
any product or service without notice, and advise customers to obtain the latest version of relevant information  
to verify, before placing orders, that information being relied on is current and complete. All products are sold  
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those  
pertaining to warranty, patent infringement, and limitation of liability.  
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in  
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent  
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily  
performed, except those mandated by government requirements.  
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF  
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL  
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR  
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER  
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO  
BE FULLY AT THE CUSTOMER’S RISK.  
In order to minimize risks associated with the customer’s applications, adequate design and operating  
safeguards must be provided by the customer to minimize inherent or procedural hazards.  
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent  
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other  
intellectual property right of TI covering or relating to any combination, machine, or process in which such  
semiconductor products or services might be or are used. TI’s publication of information regarding any third  
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.  
Copyright 1999, Texas Instruments Incorporated  
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