
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.
2
C
Absolute Maximum Ratings
Supply Voltage, V
IN
.....................................................................................................................................................................7V
Operating Temperature Range................................................................................................................................-40C to 70C
Junction Temperature............................................................................................................................................................150C
Storage Temperature Range ..................................................................................................................................-60C to 150C
ESD Damage Threshold............................................................................................................................................................2kV
Lead Temperature Soldering
Wave Solder (through hole styles only).....................................................................................10 sec. max, 260C peak
Reflow (SMD styles only)......................................................................................60 sec. max above 183C, 230C peak
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Electrical Characteristics:
C
IN
= 10μF, C
OUT
= 22μF Tantalum, V
OUT
+ V
DROPOUT
< V
IN
< 7V, 0C 2 T
A
2 70C, T
J
2 +150C,
unless otherwise specified, I
full load
= 3A.
I
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
Minimum Load Current (Note 4)
Adjust Pin Current
Thermal Regulation (Note 5)
Ripple Rejection (Note 5)
V
IN
DV
OUT
=1.5V; V
Adj
= 0V
10mA2I
OUT
23A
2V2V
IN
DV
OUT
25.75V; I
OUT
=10mA
V
IN
DV
OUT
=2V; 10mA2I
OUT
23A
1.235
(-1.5%)
1.254
1.273
(+1.5%)
0.20
0.4
V
0.02
0.04
%
%
I
OUT
=3A
V
IN
DV
OUT
=3V; T
J
3 25C
V
IN
=7V; V
adj
=0
V
IN
DV
OUT
=3V; I
OUT
=10mA
30ms pulse; T
A
=25C
f=120Hz; I
OUT
=3A; V
IN
DV
OUT
=3V;
V
RIPPLE
=1V
PP
1.15
4.6
0.6
50
0.002
80
1.40
V
A
mA
μA
%/W
dB
3.1
2.0
100
0.020
Thermal Shutdown (Note 6)
Thermal Shutdown Hysteresis (Note 6)
150
180
210
25
C
C
D
2
PAK
TO-220
1
1
Adj
Adjust pin (low side of the internal reference).
2
2
V
OUT
V
IN
Regulated output voltage (case)
3
3
Input voltage.