AP2014/A

SYNCHRONOUS PWM DC-DC BUCK CONTROLLER

DS30883 Rev. 1 - 0

2 of 13

AP2014/A

www.diodes.com

Ordering Information

AP2014A X X X

Package

Packing

SM: SOP-8L

Blank : Tube or bulk

-7/-13 : Taping

Lead-Free

Blank : Lead-Free

G : Green

Frequency

Blank : 200KHz

A : 400KHz

Pin Descriptions

Pin

Name

Pin

No.

Description

FB

1

This pin is connected directly to the output of the switching regulator via resistor divider to

provide feedback to the Error amplifier.

Vcc

2

This pin provides biasing for the internal blocks of the IC as well as power for the low side

driver. A minimum of 1uF, high frequency capacitor must be connected from this pin to

ground to provide peak drive current capability.

LDrv

3

Output driver for the synchronous power MOSFET.

GND

4

This pin serves as the ground pin and must be connected directly to the ground plane. A

high frequency capacitor (0.1 to 1uF) must be connected from V5 and V12 pins to this pin

for noise free operation.

HDrv

5

Output driver for the high side power MOSFET.

Vc

6

This pin is connected to a voltage that must be at least 4V higher than the bus voltage of the

switcher (assuming 5V threshold MOSFET) and powers the high side output driver. A

minimum of 1uF, high frequency capacitor must be connected from this pin to ground to

provide peak drive current capability.

Comp

7

Compensation pin of the error amplifier. An external resistor and capacitor network is

typically connected from this pin to ground to provide loop compensation.

SS

8

This pin provides soft-start for the switching regulator. An internal current source charges

an external capacitor that is connected from this pin to ground which ramps up the output of

the switching regulator, preventing it from overshooting as well as limiting the input current.

The converter can be shutdown by pulling this pin below 0.5V.

7” Tape and Reel

13” Tape and Reel

Device

Package

Code

Packaging

Quantity

Part Number

Suffix

Quantity

Part Number

Suffix

AP2014SM

SM

SOP-8L

3000/Tape & Reel

-7

10,000/Tape &

Reel

-13

AP2014ASM

SM

SOP-8L

3000/Tape & Reel

-7

10,000/Tape &

Reel

-13