Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7V
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
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 = 1A.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
■ Adjustable Output Voltage
Reference Voltage
(Notes 1 and 2)
VINÐVOUT=1.5V; VAdj = 0V
10mA²IOUT²1A
1.241
(-1%)
1.254
1.266
(+1%)
V
Line Regulation
1.5V²VINÐVOUT²5.75V; IOUT=10mA
VINÐVOUT=1.5V; 10mA²IOUT²1A
0.02
0.04
0.20
0.4
%
%
Load Regulation
(Notes 1 and 2)
Dropout Voltage (Note 3)
Current Limit
IOUT=1A
1.0
3.1
0.6
50
1.2
V
VINÐVOUT=3V; TJ ³ 25¡C
1.1
A
Minimum Load Current (Note 4) VIN=7V ; VAdj=0
2.0
mA
µA
%/W
dB
Adjust Pin Current
VINÐVOUT=3V; IOUT=10mA
100
Thermal Regulation (Note 5)
Ripple Rejection (Note 5)
30ms pulse; TA=25¡C
0.002
80
0.020
f=120Hz; IOUT=1A; VINÐVOUT=3V;
VRIPPLE=1VPP
Thermal Shutdown (Note 6)
150
180
25
210
¡C
¡C
Thermal Shutdown Hysteresis
(Note 6)
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: The minimum load current is the minimum current required to maintain regulation. Normally the current in the resistor divider used
to set the output voltage is selected to meet the minimum load requirement.
Note 5: Guaranteed by design, not 100% tested in production.
Note 6: Thermal shutdown is 100% functionally tested in production.
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
D2PAK
TO-220
SOT-223
1
2
3
1
2
3
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 ]
