AP1117

1A LOW DROPOUT POSITIVE ADJUSTABLE OR

FIXED-MODE REGULATOR

AP1117 Rev. 19

1 of 12

JANUARY 2010

DS31009

www.diodes.com

•

1.4V Maximum Dropout at Full Load Current

•

Fast Transient Response

•

Output Current Limiting

•

Built-in Thermal Shutdown

•

Good Noise Rejection

•

3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V,

5.0V

•

Lead Free Packages: SOT223-3L, TO252-3L,

SOT89-3L, TO263-3L and TO220-3L

•

SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and

TO220-3L: Available in “Green” Molding Compound

(No Br, Sb)

•

Lead Free Finish/RoHS Compliant (Note 1)

AP1117 is a low dropout positive adjustable or fixed-mode

regulator with 1A output current capability. The product is voltage

specifically designed to provide well-regulated supply for low

IC applications such as high-speed bus termination and low

current 3.3V logic supply. AP1117 is also well suited for other

applications such as VGA cards. AP1117 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 5.0 with 6.4V to

18V input supply. AP1117 is available in commercial temperature

grade.

•

PC Peripheral

•

Communication

Typical Application Circuit

C2

22uF

5V

3.3V/1A

GND

C1

10uF

( 5V/3.3V fixed output )

R1

121

R2

121

C2

22uF

5V

2.5V/1A

Adj

C1

10uF

o

V

( 5V/2.5V ADJ output )

)

R

R

(1

V

V

1

2

REF

o

+

×

=

Note:

Ω

Ω

Features

General Description

Applications