TO-220

SOT-223

1

1

1

Adj

Adjust pin (low side of the internal reference).

22

2

Regulated output voltage (case).

33

3

Input voltage.

Package Pin Description

PACKAGE PIN #

PIN SYMBOL

FUNCTION

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

2

s Adjustable Output Voltage

Reference Voltage

1.241

1.254

1.266

V

(Notes 1 and 2)

(-1%)

(+1%)

Line Regulation

0.02

0.20

%

Load Regulation

0.04

0.4

%

(Notes 1 and 2)

Dropout Voltage (Note 3)

1.0

1.2

V

Current Limit

1.1

3.1

A

0.6

2.0

mA

Adjust Pin Current

50

100

µA

Thermal Regulation (Note 5)

0.002

0.020

%/W

Ripple Rejection (Note 5)

80

dB

Thermal Shutdown (Note 6)

150

180

210

¡C

Thermal Shutdown Hysteresis

25

¡C

(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.

Absolute Maximum Ratings

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