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Cherry Semiconductor Corporation

CS5207-1 Datasheet Preview

CS5207-1 Datasheet

7A Adjustable Linear Regulator

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CS5207-1
7A Adjustable Linear Regulator
Description
The CS5207-1 linear regulator pro-
vides 7A at adjustable voltages
with an accuracy of ±1.5%. Two
external resistors are used to set the
output voltage within a 1.25V to
13V range.
The regulator is intended for use as
post regulator and microprocessor
supply. The fast loop response and
low dropout voltage make this reg-
ulator ideal for applications where
low voltage operation and good
transient response are important.
The circuit is designed to operate
with dropout voltages as low as 1V
depending on the output current
level. The maximum quiescent cur-
rent is only 10mA at full load.
The regulator is fully protected
against overload conditions with
protection circuitry for Safe
Operating Area (SOA), overcurrent
and thermal shutdown.
The regulator is available in a
TO-220 package. A 3.3V, fixed ver-
sion is also available. Please consult
factory for more information.
Features
s Output Current to 7A
s Output Trimmed to ±1.5%
s Dropout Voltage
1.4V @ 7A
s Fast Transient Response
s Fault Protection Circuitry
Thermal Shutdown
Overcurrent Protection
Safe Area Protection
s 3.3V Fixed Version
Available
VIN
Rev. 7/8/97
Block Diagram
Package Options
VOUT
3L TO-220
Tab (VOUT)
Thermal
Shutdown
Bandgap
Output
Current
Limit
- + Error
Amplifier
Adj
1 Adj
2 VOUT
3 VIN
1
A 3.3V fixed version is also available.
*Consult factory.
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
1 A ¨ Company




Cherry Semiconductor Corporation

CS5207-1 Datasheet Preview

CS5207-1 Datasheet

7A Adjustable Linear Regulator

No Preview Available !

Absolute Maximum Ratings
Supply Voltage, VCC ..................................................................................................................................................................17V
Operating Temperature Range................................................................................................................................-40¡C to 70¡C
Junction Temperature ............................................................................................................................................................150¡C
Storage Temperature Range ..................................................................................................................................-60¡C to 150¡C
Lead Temperature Soldering
Wave Solder (through hole styles only) .....................................................................................10 sec. max, 260¡C peak
Electrical Characteristics: CIN = 10µF, COUT = 22µF Tantalum, VIN Ð VOUT=3V, VIN ² 15V, 0¡C ² TA ² 70¡C, TJ ² +150¡C,
unless otherwise specified, Ifull load = 7A.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s Adjustable Output Voltage
Reference Voltage
(Notes 1 and 2)
Line Regulation
Load Regulation
(Notes 1 and 2)
Dropout Voltage (Note 3)
Current Limit
Minimum Load Current
Adjust Pin Current
Adjust Pin Current Change
Thermal Regulation
Ripple Rejection
Temperature Stability
RMS Output Noise
Thermal Shutdown
Thermal Shutdown Hysteresis
VINÐVOUT=1.6V; VAdj = 0V
10mA²IOUT²7A
1.6V²VINÐVOUT²6V; IOUT=10mA
VINÐVOUT=1.6V;
10mA²IOUT²7A
IOUT=7A
VINÐVOUT=3V; TJ ³ 25¡C
VINÐVOUT=9V
VINÐVOUT=7V
1.6V²VINÐVOUT²4V;
10mA²IOUT²7A
30ms pulse; TA=25¡C
f=120Hz; CAdj=25µF; IOUT=7A
10Hz²f²10kHz; TA=25¡C
1.235
(-1.5%)
7.1
150
1.254
0.04
0.13
1.4
8.5
1.0
1.2
50
0.2
0.003
80
0.5
0.003
180
25
1.272
(+1.5%)
0.20
0.5
V
%
%
1.55 V
A
A
6 mA
100 µA
5.0 µA
%W
dB
%
%VOUT
¡C
¡C
Note 1: Load regulation and output voltage are measured at a constant junction temperature by low duty cycle pulse testing. Changes in out-
put voltage due to thermal gradients or temperature changes must be taken into account separately.
Note 2: Specifications apply for an external Kelvin sense connection at a point on the output pin 1/4Ó from the bottom of the package.
Note 3: Dropout voltage is a measurement of the minimum input/output differential at full load.
PACKAGE PIN #
3L TO-220
1
2
3
Package Pin Description
PIN SYMBOL
FUNCTION
Adj
VOUT
VIN
Adjust pin (low side of the internal reference).
Regulated output voltage (case).
Input voltage.
2


Part Number CS5207-1
Description 7A Adjustable Linear Regulator
Maker Cherry Semiconductor Corporation
PDF Download

CS5207-1 Datasheet PDF






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