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Cherry Semiconductor Corporation

CS5207-2 Datasheet Preview

CS5207-2 Datasheet

7A/ 1.5V Fixed Linear Regulator

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CS5207-2
7A, 1.5V Fixed Linear Regulator
Description
The CS5207-2 provides 7A at 1.5V
with an accuracy of ± 2%.
The regulator is intended for use as
an active termination for the GTL
bus on Intel based motherboards.
The fast loop response and low
dropout voltage make these regula-
tors 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 regulators are fully protected
against overload conditions with
protection circuitry for Safe
Operating Area (SOA), overcurrent
and thermal shutdown.
The CS5207-2 is available in TO-220
packages.
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
ESD Damage Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2kV
Block Diagram
Features
s Output Current to 7A
s Output Voltage Trimmed
to ±2%
s Dropout Voltage
1.45V @ 7A
s Fast Transient Response
s Fault Protection Circuitry
Thermal Shutdown
Overcurrent Protection
Safe Area Protection
Package Options
3L TO-220
Tab (VOUT)
VIN
Thermal
Shutdown
Bandgap
Output
Current
Limit
- + Error
Amplifier
VOUT
Gnd
1 Gnd
2 VOUT (Tab)
3 VIN
1
Rev. 6/12/98
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

CS5207-2 Datasheet Preview

CS5207-2 Datasheet

7A/ 1.5V Fixed Linear Regulator

No Preview Available !

Electrical Characteristics: CIN = 10µF, COUT = 22µF Tantalum, VIN Ð VOUT=3V, VIN ² 10V, 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 Fixed Output Voltage
CS5207-2
(Notes 1 and 2)
Line Regulation
Load Regulation (Notes 1 and 2)
Dropout Voltage (Note 3)
Current Limit
Quiescent Current
Thermal Regulation
Ripple Rejection
Temperature Stability
RMS Output Noise (%VOUT)
Thermal Shutdown
Thermal Shutdown Hysteresis
VIN Ð VOUT = 1.65V;
0² IOU T ² 7A
1.65V ² VINÐVOUT ² 6V; IOUT = 10mA
VIN Ð VOUT = 1.65V; 10mA ² IOUT ² 7A
IOUT = 7A
VIN Ð VOUT = 3V; TJ ³ 25¡C
VIN Ð VOUT = 12V
VIN ² 9V; IOUT = 10mA
30ms pulse; TA = 25¡C
f = 120Hz; IOUT = 7A
10Hz ² f ² 10kHz
1.47
(-2%)
7.1
150
1.50
0.04
0.08
1.42
8.5
1.0
5.0
0.003
80
0.5
0.003
180
25
1.53
(+2%)
0.20
0.40
1.65
10.0
V
%
%
V
A
A
mA
%/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
Gnd
VOUT
VIN
Ground connection.
Regulated output voltage (case).
Input voltage.
Typical Performance Characteristics
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85 TCASE = 25°C
0.80
0.75
0.70
01
TCASE = 0°C
TCASE = 125°C
2 34
Output Current (A)
5
6
Dropout Voltage vs. Output Current
7
0.10
0.08
0.06
0.04
0.02
0.00
-0.02
-0.04
-0.06
-0.08
-0.10
-0.12
0 10 20 30 40 50 60 70 80 90 100 110 120 130
TJ (°C)
Output Voltage vs. Temperature
2


Part Number CS5207-2
Description 7A/ 1.5V Fixed Linear Regulator
Maker Cherry Semiconductor Corporation
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CS5207-2 Datasheet PDF






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