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AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
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Typical Application Circuit
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5V
5V
C1
10uF
C1
10uF
Vin
Vin
Vout
C2
22uF
GND
Vo
Vout
3.3V/1A
R1
121 ȍ
R2
121 ȍ
Adj
Tab is Vout
2.5V/1A
C2
22uF
Tab is Vout
( 5V/3.3V fixed output ) ʳ
( 5V/2.5V ADJ output ) ʳ
Note: Vo
VREF (1
R2
)
R1
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Connection Diagramʳ
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3 PIN SOT223
3 PIN TO252 / TO263
( Top View)
(Top View)
3
Vin
2
Vout
2
1
Vin
3
Vout
Adj ( GND)
1
Tab is Vout
Adj ( GND)
Tab is Vout
3 PIN SOT89
3
2
1
3 PIN TO220
Vin
Vout
Adj ( GND)
Tab is Vout
3
Vin
2
Vout
1
Adj ( GND)
Tab is Vout
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AP1117 Rev. 3
2 of 11
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SEPTEMBER 2006
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