APX1117

1A LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

APX1117 Rev. 1

3 of 8

JUNE 2007

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Block Diagram

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

DC Supply Voltage

-0.3 to 18

V

Operating Junction Temperature Range

0 to +125

°C

Maximum Junction Temperature

150

°C

Power Dissipation

SOT223-3L

TO252-3L

Internally limited by maximum junction

temperature of 150°C (Note 3)

mW

Storage Temperature

-65 to +150

°C

Note:

3. APX1117 contains an internal thermal limiting circuit that is designed to protect the regulator in the event that the maximum junction temperature

is exceeded. When activated, typically at 150

°C, the regulator output switches off and then back on as the die cools.

3

Thermal

Shutdown

1

2

Adj

1.25V

+

+

CURRENT

LIMIT

+

+

1

GND

(FIXED)