Data sheet, Pin configuration, Pin description – Diodes AP3406A User Manual

Page 2

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Data Sheet

1.1MHz, 800mA SYNCHRONOUS DC-DC BUCK CONVERTER AP3406A

Feb. 2013 Rev. 1. 5 BCD Semiconductor Manufacturing Limited

2

Pin Configuration


KT Package MM Package DN Package

TSOT-23-5 MSOP-10 DFN-2×2-6(1)







Figure 2. Pin Configuration of AP3406A (Top View)



Pin Description

Pin Number

Pin Name

Function

TSOT-23-5 MSOP-10

DFN-2×2-6(1)

1 8 2

EN

Control input pin. Forcing this pin above
1.5V enables the IC. Forcing this pin
below 0.6V shuts down the IC. When
the IC is in shutdown mode, all
functions are disabled to decrease the
supply current below 1

µA

2 3 5

GND

Ground

pin

3 9 4

SW

Power switch output pin. Inductor
connection to drain of the internal PFET
and NFET switches

4 1 3

VIN

Supply input pin. Bypass to GND with a
10

µF or greater ceramic capacitor

5 5 6

FB

Feedback pin. Connect it with an
external resistor divider network to
program the system output voltage

2, 4, 6, 7

1

NC

No connection

10

PGND

Power ground pin

NC

EN

VIN

FB

GND

SW

P in 1 Mark

1

2

3

4

5

6

EN

SW

GND

VIN

FB

1

2

3

4

5

1

2

3

4

8

7

5

6

9

10

EN

VIN

NC

GND

NC

FB

NC

NC

SW

PGND

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