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AP7331 Datasheet(PDF) 2 Page - Diodes Incorporated

Part # AP7331
Description  300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT LOW DROPOUT
PDF  13 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP7331 Datasheet(HTML) 2 Page - Diodes Incorporated

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AP7331
300mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
AP7331
Document number: DS31914 Rev. 3 - 2
2 of 13
www.diodes.com
January 2011
© Diodes Incorporated
Typical Application Circuit
1uF
IN
GND
EN
OUT
Enable
1uF
VIN
VOUT
AP7331
Fixed Output
1uF
IN
GND
EN
OUT
Enable
ADJ
R2
R1
1uF
VIN
VOUT
AP7331
Adjustable Output
Pin Descriptions
Pin Name
Pin Number
Description
SOT25
(fixed)
DFN2020-6
(fixed)
SOT25
(adj)
DFN2020-6
(adj)
IN
1
3
1
3
Voltage input pin. Bypass to ground through at least
1µF capacitor
GND
2
2
2
2
Ground
EN
3
1
3
1
Enable input, active high
ADJ
-
-
4
6
Output feedback pin
NC
4
5, 6
-
5
No connection
OUT
5
4
5
4
Voltage output pin. Bypass to ground through 1µF
ceramic capacitor
Functional Block Diagram
IN
EN
GND
OUT
Gate
Driver
0.4V
Current Limit
and Thermal
Shutdown
Fixed Version
R
R
IN
EN
GND
ADJ
OUT
Gate
Driver
0.4V
Current Limit
and Thermal
Shutdown
Adjustable Version
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
+
=
2
R
1
R
1
REF
V
OUT
V



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