AP1117 Diodes, Inc., AP1117 Datasheet - Page 2
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AP1117
Manufacturer Part Number
AP1117
Description
1a Low Dropout Positive Adjustable Or Fixed-mode Regulator
Manufacturer
Diodes, Inc.
Datasheet
1.AP1117.pdf
(11 pages)
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Pin Assignments
Pin Descriptions
AP1117 Rev. 10
Adj (GND)
NAME
V
V
out
in
I/O
O
I
I
FRONT VIEW
SOT89-3L
Tab is Vout
Tab is V
TO220-3L
3
2
1
3
2
1
PIN #
1
2
3
out
Vout
Vin
Adj (GND)
A resistor divider from this pin to the V
The output of the regulator. A minimum of 10uF capacitor (0.15Ω ≤ ESR ≤
The input pin of regulator. Typically a large storage capacitor (0.15Ω ≤ ESR
voltage (Ground only for Fixed-Mode).
20Ω) must be connected from this pin to ground to insure stability.
≤ 20Ω) is connected from this pin to ground to insure that the input voltage
does not sag below the minimum dropout voltage during the load transient
response. This pin must always be 1.3V higher than V
device to regulate properly.
Adj (GND)
V
V
in
out
www.diodes.com
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
2 of 11
TO252-3L / TO263-3L
FUNCTION
SOT223-3L
( Top View )
out
( Top View )
Tab is Vout
Tab is Vout
FIXED-MODE REGULATOR
pin and ground sets the output
3
2
1
3
2
1
Vout
Vin
Vout
Adj (GND)
Vin
Adj (GND)
out
AP1117
©
in order for the
Diodes Incorporated
JUNE 2008