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
■ Adjustable Output Voltage
Reference Voltage
(Notes 1 and 2)
V
INÐVOUT=1.6V; VAdj = 0V
1.235
(-1.5%)
1.254
1.272
(+1.5%)
V
10mA²IOUT²7A
Line Regulation
1.6V²VINÐVOUT²6V; IOUT=10mA
0.04
0.13
0.20
0.5
%
%
Load Regulation
(Notes 1 and 2)
VINÐVOUT=1.6V;
10mA²IOUT²7A
Dropout Voltage (Note 3)
Current Limit
I
OUT=7A
1.4
1.55
V
VINÐVOUT=3V; TJ ³ 25¡C
VINÐVOUT=9V
7.1
8.5
1.0
A
A
Minimum Load Current
Adjust Pin Current
VINÐVOUT=7V
1.2
50
6
mA
µA
µA
100
5.0
Adjust Pin Current Change
1.6V²VINÐVOUT²4V;
10mA²IOUT²7A
0.2
Thermal Regulation
Ripple Rejection
30ms pulse; TA=25¡C
0.003
80
%W
dB
f=120Hz; CAdj=25µF; IOUT=7A
Temperature Stability
RMS Output Noise
0.5
%
10Hz²f²10kHz; TA=25¡C
0.003
180
25
%VOUT
¡C
Thermal Shutdown
Thermal Shutdown Hysteresis
150
¡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 Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
3L TO-220
1
2
3
Adj
Adjust pin (low side of the internal reference).
Regulated output voltage (case).
Input voltage.
VOUT
VIN
2
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
