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Cherry Semiconductor Corporation

CS5203-3 Datasheet Preview

CS5203-3 Datasheet

3A/ 3.3V Fixed Linear Regulator

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CS5203-3
3A, 3.3V Fixed Linear Regulator
Description
The CS5203-3 linear regulator
provides a 3.3V reference at 3A
with an output voltage accuracy
of ±1.5%.
This regulator is intended for
use as a post regulator and
microprocessor supply. The fast
loop response and low dropout
voltage make this regulator
ideal for applications where low
voltage operation and good
transient response are impor-
tant.
The circuit is designed to pro-
vide 3A of output current with
dropout voltages of less than
1.15V. The maximum quiescent
current is only 10mA at full
load. Device protection includes
overcurrent and thermal shut-
down.
The CS5203-3 is pin compatible
with the LT1085 family of linear
regulators.
The regulator is available in a
surface mount D2 package.
Features
s Output Current to 3A
s Output Accuracy to ±1.5%
Over Temperature
s Dropout Voltage (typical)
1.15V @ 3A
s Fast Transient Response
s Fault Protection
Current Limit
Thermal Shutdown
5V
100mF
5V
Rev. 6/3/98
Application Diagram
VIN VOUT
CS5203-3
GND
3.3V
@ 3A
Package Options
3L D2PAK
Tab (VOUT)
10mF
5V
1
CS5203 -3
1 Gnd
2 VOUT (Tab)
3 VIN
Consult factory for other package
options.
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

CS5203-3 Datasheet Preview

CS5203-3 Datasheet

3A/ 3.3V Fixed Linear Regulator

No Preview Available !

Absolute Maximum Ratings
Supply Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7V
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40¡C to 70¡C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .150¡C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-60¡C to 150¡C
Lead Temperature Soldering
Reflow (SMD styles only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 sec. max above 183¡C, 230¡C peak
ESD Damage Threshold (Human Body Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2kV
Electrical Characteristics: CIN = 10µF, COUT = 22µF Tantalum, VOUT + VDROPOUT < VIN < 7V, 0¡C ² TA ² 70¡C, TJ ² +150¡C,
unless otherwise specified, Ifull load = 3A.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s Fixed Output Voltage
Output Voltage
(Notes 1 and 2)
Line Regulation
Load Regulation
(Notes 1 and 2)
Dropout Voltage (Note 3)
Current Limit
Quiescent Current
Thermal Regulation (Note 4)
Ripple Rejection (Note 4)
Thermal Shutdown (Note 5)
Thermal Shutdown Hysteresis
(Note 5)
VINÐVOUT=1.5V;
0²IOUT²3A
2V²VINÐVOUT²3.7V; IOUT=10mA
VINÐVOUT=2V; 10mA²IOUT²3A
IOUT=3A
VINÐVOUT=3V
IOUT=10mA
30ms pulse; TA=25¡C
f=120Hz; IOUT=3A; VINÐVOUT=3V;
VRIPPLE=1VPP
3.250
(-1.5%)
3.1
150
3.300
0.02
0.04
1.15
4.6
6.0
0.002
80
180
25
3.350
(+1.5%)
0.20
0.4
V
%
%
1.4
10.0
0.020
V
A
mA
%/W
dB
210 ¡C
¡C
Note 1: Load regulation and output voltage are measured at a constant junction temperature by low duty cycle pulse testing. Changes in output
voltage due to 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.
Note 4: Guaranteed by design, not tested in production.
Note 5: Thermal shutdown is 100% functionally tested in production.
PACKAGE PIN #
D2PAK
1
2
3
Package Pin Description
PIN SYMBOL
FUNCTION
Gnd
VOUT
VIN
Ground connection.
Regulated output voltage (case).
Input voltage.
2


Part Number CS5203-3
Description 3A/ 3.3V Fixed Linear Regulator
Maker Cherry Semiconductor Corporation
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CS5203-3 Datasheet PDF






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