Diodes AP3407/A Manuel d'utilisateur télécharger pdf (Page 2)

Data Sheet

1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3407/A

Dec. 2011 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

GND

VIN

GND

Pin Configuration

K Package

(SOT-23-5)

(For AP3407) (For AP3407A)

Figure 2. Pin Configuration of AP3407/A (Top View)

Pin Description

Pin Number

AP3407 AP3407A

Pin Name Function

1 3 EN

Control input pin. Forcing this pin above 1.5V enables

the IC. Forcing this pin below 0.4V shuts down the IC.

When the IC is in shutdown mode, all functions are

disabled to decrease the supply current below 1.2A

2 2 GND Ground pin

3 5 SW

Power switch output pin. Inductor connection to drain

of the internal PFET and NFET switches

4 1 VIN

Supply input pin. Bypass to GND with a 4.7µF or

greater ceramic capacitor

5 4 FB

This is the feedback pin of the device. Connect this pin

directly to the output if the fixed output voltage version

is used. For the adjustable version an external resistor

divider is connected to this pin.

1 2 3 4 5 6 7 ... 10 11

Pas de commentaire

Diodes AP3407/A Manuel d'utilisateur Page 2