AP1121

DUAL 1A LOW DROPOUT POSITIVE REGULATOR

AP1121 Rev. 4

1 of 7

FEBRUARY 2007

www.diodes.com

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1.3V maximum dropout at full load current

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Fast transient response

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Output current limiting for each channel

•

Built-in thermal shutdown for each channel

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Good noise rejection

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Dual output ch1 = 3.3V, ch2 = 2.5V

(ch2 = 1.8V for version B)

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SOP-8L: Available in “Green” Molding Compound (No

Br, Sb)

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Lead Free Finish/ RoHS Compliant for Lead Free and

“Green” Products (Note 1)

AP1121 is a low dropout positive regulator to provide 1A 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/2.5V or

3.3V/1.8V logic supply. AP1121 is a guaranteed to have <1.3V

dropout at full load current making it ideal to provide well

regulated outputs dual channels with up to 18V input supply.

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PC peripheral

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Communication

Package

S : SOP-8L

Packing

Lead Free

L : Lead Free

-U : Tube

-13 : Taping

Vout

A : CH1=3.3V

CH2=2.5V

B : CH1=3.3V

CH2=1.8V

G : Green

A P 1 1 2 1 X X XX

Note:

1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.

Note:

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

http://www.diodes.com/datasheets/ap02001.pdf.

Features

General Description

Applications

Ordering Information

Tube/Bulk

13” Tape and Reel

Device

(Note 2)

Package

Code

Packaging Quantity

Part Number

Suffix

Quantity

Part Number

Suffix

AP1121AS

S

SOP-8L

100

-U

2500/Tape & Reel

-13

AP1121BS

S

SOP-8L

100

-U

2500/Tape & Reel

-13