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AP1084DG-13

5A LOW DROPOUT POSITIVE ADJUSTABLE OR FIXED-MODE REGULATOR

Diodes Incorporated. 

AP1084

5A LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

Features

• 1.4V Maximum Dropout at Full Load Current

• Built-in Thermal Shutdown

• Output Current Limiting

• Adjustable Output Voltage or Fixed 1.5V, 1.8V, 2.5V,

3.3V, 5.0V

• Fast Transient Response

• Good Noise Rejection

• Lead Free Packages: TO252-3L, TO263-3L and

TO220-3L

• TO252-3L, TO263-3L and TO220-3L: Available in

“Green” Molding Compound (No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 1)

General Description

AP1084 is a low dropout positive adjustable or fixed-mode

regulator with 5.0A output current capability. The product is

specifically designed to provide well-regulated supply for low

voltage IC applications such as high-speed bus termination and

low current 3.3V logic supply. AP1084 is also well suited for other

applications such as VGA cards. AP1084 is guaranteed to have

lower than 1.4V dropout at full load current making it ideal to

provide well-regulated outputs of 1.25 to 3.3V with 4.7 to

12V input supply.

Typical Application Circuit

5.0V to 3.3V Fixed Mode Regulator

5V

C1

100uF

Vin

Vout

GND

Tab is Vout

3.3V/5A

C2

100uF

Adjustable Regulator

5V

C1

100uF

Vin

Vout

2.5V/5A

Adj

R1 121Ω

R2 121Ω

C2

100uF

Tab is Vout

Note: VO = VREF∗ (1+ R2 )

R1

AP1084 Rev. 9

DS31070

1 of 11

www.diodes.com

JANUARY 2010

© Diodes Incorporated

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