AP1086

1.5A LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

AP1086 Rev. 2

2 of 8

MARCH 2007

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Connection Diagram

3 PIN TO263

3 PIN TO252

3 PIN TO220

3

2

1

Vin

Vout

Tab is Vout

FRONT VIEW

Adj

(GND)

3

2

1

Vin

Vout

Adj

(GND)

Tab is Vout

FRONT VIEW

Tab is Vout

3

Vin

2

1

Vout

FRONT VIEW

Adj

(GND)

NAME

I/O

PIN #

FUNCTION

Adj

(GND)

1

Adjustable (Ground only for fixed mode)

Vout

O

2

The output of the regulator. A minimum of 10uF capacitor must be

connected from this pin to ground to insure stability.

Vin

I

3

The input pin of regulator. Typically a large storage capacitor is

connected from this pin to ground to insure that the input voltage does

not sag below the minimum dropout voltage during the load transient

response. This pin must always be 1.4V higher than Vout in order for the

device to regulate properly.

Absolute Maximum Ratings

Symbol

Parameter

Rating

Unit

Vin

DC Supply Voltage

-0.3 to 12

V

Power Dissipation

Internally Limited

Storage Temperature

-65 to +150

Operating Junction Temperature Range

0 to +150

Pin Descriptions