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AP3419 Datasheet(PDF) 2 Page - Diodes Incorporated

Part # AP3419
Description  2A STEP-DOWN DC-DC BUCK CONVERTER
PDF  9 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AP3419 Datasheet(HTML) 2 Page - Diodes Incorporated

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AP3419
Document number: DS36543 Rev. 3 - 2
2 of 9
www.diodes.com
August 2015
© Diodes Incorporated
AP3419
Typical Applications Circuit
R1
R2
VIN
EN
LX
FB
L1 2.2
mH
CIN
22
mF
VIN=2.7V to 5.5V
GND
COUT
22
mFx2
VOUT=1.8V
ON OFF
C1
22pF
300k
150k
Pin Descriptions
Pin Number
Pin Name
Function
1
EN
Enable control input. Force this pin voltage above 1.5V enables the chip, and
below 0.4V shuts down the device
2
GND
Ground pin
3
LX
The drains of the internal main and synchronous power MOSFETs
4
VIN
Bias supply. Chip main power supply pin
5
NC
No connected
6
FB
Feedback voltage to internal error amplifier. The threshold voltage is 0.6V



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