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EZ1087

型号：

EZ1087

描述：

5.0 AMP远程感应电压稳压器[ 5.0 AMP REMOTE SENSE VOLTAGE REGULATOR ]

品牌：

SEMTECH[ SEMTECH CORPORATION ]

页数：

4 页

PDF大小：

83 K

下载PDF手册
5.0 AMP REMOTE SENSE  
VOLTAGE REGULATOR  
EZ1087  
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com  
April 7, 1998  
DESCRIPTION  
FEATURES  
The EZ1087 5.0A voltage regulator is a monolithic  
integrated circuit designed for use in applications  
requiring a well regulated positive output voltage with  
low input-output differential voltage requirements and  
where remote sensing of the output voltage is desired  
to compensate for connector, wiring and pc board  
trace resistances or other voltage losses. Other  
outstanding features include full power usage up to  
5.0A of load current, internal current limiting, and  
thermal shutdown. Specifications guarantee 3.30 VDC  
output from a 4.75 VDC input.  
•= Low dropout performance, 1.3V max.  
•= Kelvin remote sense inputs  
•= Line regulation typically 0.015%  
•= Load regulation typically 0.1%  
•= 5-pin TO-220 package  
ORDERING INFORMATION  
DEVICE  
PACKAGE  
VOUT VOLTS  
APPLICATIONS  
EZ1087CT  
TO-220  
1.30 to 5.7  
•= GTL+ bus supplies  
ABSOLUTE MAXIMUM RATINGS  
BLOCK DIAGRAM  
Parameter  
Symbol Maximum Units  
Input Voltage  
VIN  
7
V
Sense Pins  
Differential Voltage  
V+S - V-S  
4
V
Sense Pin Voltage  
Range  
VSP  
PD  
Note 1  
V
W
Power Dissipation  
Internally  
Limited  
Thermal Resistance  
Junction to Case  
2.5  
50  
°C/W  
°C/W  
°C  
θJC  
θJA  
Thermal Resistance  
Junction to Ambient  
Operating Junction  
Temperature Range  
TJ  
0 to 125  
-65 to 150  
260  
PIN CONFIGURATION  
Storage Temperature  
Range  
TSTG  
TLEAD  
°C  
EZ1087  
Lead Temperature  
(Soldering) 10 Sec  
PIN FUNCTION  
°C  
1
2
3
4
5
- SENSE  
ADJ  
Note:  
(1) (VOUT - 1V) ≤ V±SENSE ≤ (VOUT + 0.4V)  
OUTPUT  
INPUT  
+ SENSE  
TAB IS OUTPUT  
1
© 1998 SEMTECH CORP.  
652 MITCHELL ROAD NEWBURY PARK CA 91320  
5.0 AMP REMOTE SENSE  
VOLTAGE REGULATOR  
EZ1087  
April 7, 1998  
ELECTRICAL CHARACTERISTICS  
Unless otherwise specified, VIN = 2.75V to 7.0V and Adj IO = 10mA to 5.0A  
Test Conditions  
Test Limits  
Typ  
(4)  
Parameter  
Symbol  
VIN  
IO  
TJ  
Min  
Max  
Units  
Reference Voltage (1)  
Adj Voltage Version  
Line Regulation(1)  
VREF  
5V  
10mA  
25°C  
O.T.  
25°C  
O.T.  
25°C  
O.T.  
25°C  
O.T.  
O.T.  
O.T.  
25°C  
O.T.  
1.238  
1.225  
1.250  
1.250  
0.015  
0.035  
0.1  
1.262  
1.275  
0.2  
V
REG(LINE)  
REG(LOAD)  
VD  
10mA  
%
%
V
0.2  
Load Regulation(1)  
5V  
0.3  
0.2  
0.4  
Dropout Voltage  
∆VREF = 1%  
1
1.1  
1.3  
Current Limit  
ICL  
TC  
5.0  
7.5  
A
Temperature Coefficient  
Adjust Pin Current  
0.005  
55  
%/°C  
µA  
IADJ  
90  
5
Adjust Pin Current  
Change  
O.T.  
0.2  
µA  
∆IADJ  
Temperature Stability  
Minimum Load Current  
RMS Output Noise(2)  
Ripple Rejection Ratio(3)  
TS  
IO  
5V  
5V  
0.5A  
5.0A  
O.T.  
O.T.  
25°C  
O.T.  
0.5  
5
%
mA  
%VO  
dB  
10  
VN  
RA  
0.003  
72  
5V  
60  
Common Mode (5)  
Range of Sense Pins  
VCM  
25°C  
0.4  
mV  
Differential Gain of  
Sense Pins  
25°C  
25°C  
11  
V / V  
µA  
Sense Bias Current  
IB  
0.3  
NOTES:  
(1) Low duty cycle pulse testing with Kelvin connections required.  
(2) Bandwidth of 10 Hz to 10 kHz.  
(3) 120 Hz input ripple (CADJ for ADJ = 25µF).  
(4) Over Temp. (O.T.) = over specified operating junction temperature range.  
(5) (VOUT - 1V) ≤ V±SENSE ≤ VOUT.  
2
© 1998 SEMTECH CORP.  
652 MITCHELL ROAD NEWBURY PARK CA 91320  
5.0 AMP REMOTE SENSE  
VOLTAGE REGULATOR  
EZ1087  
April 7, 1998  
TYPICAL APPLICATIONS  
ADJUSTABLE VOLTAGE REGULATOR (1)(2)  
PARALLELING EZ1087 FOR HIGHER CURRENT  
For paralleling more than two devices, duplicate slave section.  
Minimum load current = (10mA) (# of devices in parallel).  
R1, R2 network can be used as a minimum load.  
RM = 8m ohm 10” of #20 A.W.G. solid wire (copper).  
RS = 7.3m ohm. 9.1” of #20 A.W.G. solid wire (copper).  
RM and RS should be non-inductive. This is easily accomplished by  
folding the wire back upon itself so that the fields generated by cur-  
rent flowing in the wire cancel.  
3
© 1998 SEMTECH CORP.  
652 MITCHELL ROAD NEWBURY PARK CA 91320  
5.0 AMP REMOTE SENSE  
VOLTAGE REGULATOR  
EZ1087  
April 7, 1998  
DEVICE OUTLINE - 5 PIN TO-220  
4
© 1998 SEMTECH CORP.  
652 MITCHELL ROAD NEWBURY PARK CA 91320  
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