AP1624

PWM/PFM DUAL MODE STEP-UP DC/DC CONTROLLER

AP1624 Rev. 1

1 of 7

FEBRUARY 2007

www.diodes.com

Lead-free

•

Input Voltage Range: 0.9~6V

•

PWM/PFM Switching Control

•

High Efficiency: 90%

•

Oscillator Frequency: 300kHz（±15%）

•

Stand-by Current: I

•

Lead Free Finish/RoHS Compliant for Lead Free

products (Note 1)

•

Lead Free Package: SOT25

The AP1624 is a multi-functional step-up DC/DC controller.

Large output current is possible using an externally connected N

channel MOSFET, coil, and diode.

Output voltage（V

voltage supply internal, and using externally connected

components, output voltage（FB）can be set up at will.

With a 300KHz switching frequency, the size of the external

components can be reduced.

Control switches from PFM to PWM during light loads with the

AP1624（PFM/PWM switchable）and the series is highly efficient

from light loads to large output currents.

During stand-by time (CE pin “Low”), current consumption is

reduced to 3µA.

Applications

•

Electronic Information Organizers

•

Palmtops

•

Cellular and Portable Phones

•

Portable Audio Systems

•

Various Multi-function Power Supplies

AP1624 X X X

W : SOT25

Packing

-7 : Taping

Package

Lead-Free

L: Lead Free

Note:

1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.

7” Tape and Reel

Device

Package Code

Packaging

(Note 2)

Quantity

Part Number Suffix

AP1624W

W

SOT25

3000/Tape & Reel

-7

Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

Features

General Description

Ordering Information

Not Recommended

for New Designs