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AP1117

Description
1A LOW DROPOUT POSITIVE ADJUSTABLE
File Size165KB,12 Pages
ManufacturerDiodes
Websitehttp://www.diodes.com/
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AP1117 Overview

1A LOW DROPOUT POSITIVE ADJUSTABLE

AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
Features
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)
General Description
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.
Applications
PC Peripheral
Communication
Typical Application Circuit
5V
C1
10uF
V
IN
V
OUT
GND
Tab is V
OUT
C2
22uF
3.3V/1A
V
IN
V
OUT
Adj
Tab is V
OUT
R1
121
R2
121
V
o
2.5V/1A
5V
C1
10uF
C2
22uF
( 5V/3.3V fixed output )
( 5V/2.5V ADJ output )
Note:
V
o
=
V
REF
×
(1
+
R
2
)
R
1
AP1117 Rev. 19
DS31009
1 of 12
www.diodes.com
JANUARY 2010
©
Diodes Incorporated
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