AP1184S Ver la hoja de datos (PDF) - Diodes Incorporated.

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componentes Descripción

Fabricante

AP1184S

4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

Diodes Incorporated. 

Pin Assignments

AP1184

4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

.

Adj(GND)

1

8

NC

Vsense

2

7

Vout

Vctrl

3

6

Vout

Vin

4

5

Vin

SOP-8L

FRONT VIEW

5

4

3

2

1

Tab is Vout

Vin

Vctrl

Vout

Adj(GND)

Vsense

TO220-5L

FRONT VIEW

5

Vin

4

Vctrl

3

Vout

2

Adj(GND)

1

Vsense

Tab is Vout

TO263-L

Pin Descriptions

Pin Numbers with standard type are for TO220-5L, TO263-5L packages, and those with boldface type are for SOP-8L

Name I/O

Description

Adj

A resistor divider from this pin to the Vout pin and ground sets the output voltage.

(GND)

(GND only for fixed mode)

This pin is the positive side of the reference that allows remote load sensing to achieve

Vsense

I excellent load regulation. A minimum of 10uF capacitor must be connected from this

pin to ground to insure stability.

The input of the regulator. Typically a large storage capacitor is connected from this

Vin

I

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 higher than Vout

in order for the device to regulate.

This pin is the supply pin for the internal control circuit as well as the base drive for the

Vctrl

I

pass transistor. This pin must always be higher than the Vout pin in order to regulate

the device. A minimum of 100uF capacitor must be connected from this pin to ground

to insure stability.

NC

No connection

Vout

O

The output of the regulator. A minimum of 100uF capacitor must be connected from

this pin to ground to insure stability.

AP1184 Rev. 1

2 of 12

www.diodes.com

MARCH 2007

© Diodes Incorporated

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