CS5203 -1
Absolute Maximum Ratings
Supply Voltage, V
IN
.....................................................................................................................................................................7V
Operating Temperature Range................................................................................................................................-40¡C to 70¡C
Junction Temperature ............................................................................................................................................................150¡C
Storage Temperature Range ..................................................................................................................................-60¡C to 150¡C
ESD Damage Threshold............................................................................................................................................................2kV
Lead Temperature Soldering
Wave Solder (through hole styles only) .....................................................................................10 sec. max, 260¡C peak
Reflow (SMD styles only) ......................................................................................60 sec. max above 183¡C, 230¡C peak
Electrical Characteristics:
C
IN
= 10µF, C
OUT
= 22µF Tantalum, V
OUT
+ V
DROPOUT
< V
IN
< 7V, 0¡C ² T
A
² 70¡C, T
J
² +150¡C,
unless otherwise specified, I
full load
= 3A.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s
Adjustable Output Voltage (CS5203-1)
Reference Voltage
(Notes 1 and 2)
Line Regulation
Load Regulation
(Notes 1 and 2)
Dropout Voltage (Note 3)
Current Limit
Adjust Pin Current
Thermal Regulation (Note 5)
Ripple Rejection (Note 5)
Thermal Shutdown (Note 6)
Thermal Shutdown Hysteresis (Note 6)
V
IN
ÐV
OUT
=1.5V; V
Adj
= 0V
10mA²I
OUT
²3A
2V²V
IN
ÐV
OUT
²5.75V; I
OUT
=10mA
V
IN
ÐV
OUT
=2V; 10mA²I
OUT
²3A
I
OUT
=3A
V
IN
ÐV
OUT
=3V; T
J
³ 25¡C
V
IN
ÐV
OUT
=3V; I
OUT
=10mA
30ms pulse; T
A
=25¡C
f=120Hz; I
OUT
=3A; V
IN
ÐV
OUT
=3V;
V
RIPPLE
=1V
PP
150
3.1
1.235
(-1.5%)
1.254
0.02
0.04
1.15
4.6
0.6
50
0.002
80
180
210
25
2.0
100
0.020
1.273
(+1.5%)
0.20
0.4
1.40
V
%
%
V
A
mA
µA
%/W
dB
¡C
¡C
Minimum Load Current (Note 4) V
IN
=7V; V
adj
=0
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 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: Minimum load current is defined as the minimum output current required to maintain regulation. The reference resistor in the output
divider is usually sized to fulfill the minimum load current requirement.
Note5: Guaranteed by design, not 100% functionally tested in production.
Note 6: Guaranteed by design, not 100% parametrically tested in production. However, every part is subject to functional testing for thermal
shutdown.
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
D
2
PAK
1
2
3
TO-220
1
2
3
Adj
V
OUT
V
IN
Adjust pin (low side of the internal reference).
Regulated output voltage (case)
Input voltage.
2
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
