AP1609

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

AP1609 Rev. 1

1 of 8

JANUARY 2007

www.diodes.com

•

Input Voltage Range: 2.5~6V

•

Output Voltage Range: 3.0~17V (±2.5%)

•

PWM/PFM Switching Control

•

Oscillator Frequency: 300KHz (±20%)

•

High Efficiency: 91% (Typ.)

•

•

Built-in internal N-Channel MOS

•

Lead-Free and Green Package: SOP-8L

•

Lead Free Finish/RoHS Compliant for Lead Free

products (Note 1)

The AP1609 is a high efficient step-up DC/DC converter. Large

output current is possible having a built in internal N channel

MOSFET, and using an external coil and diode.

Output voltage is programmable with 1.23V of standard 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 AP1609 (PWM/PFM switchable) and

the series are highly efficient from light loads to large output

currents.

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

reduced to 1µA.

•

Electronic Information Organizers

•

Palmtops

•

Cellular and Portable Phones

•

Portable Audio Systems

•

Various Multi-Function Power Supplies

AP1609 X X X

Package

Packing

- U : Tube

-13 : Taping

S : SOP-8L

Lead-Free

L : Lead-Free

G : Green

Note:

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

Tube

13” Tape and Reel

Device

(Note 2)

Package

Code

Packaging Quantity

Part Number

Suffix

Quantity

Part Number

Suffix

AP1609S

S

SOP-8L

100

-U

2500/Tape & Reel

-13

Note:

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

http://www.diodes.com/datasheets/ap02001.pdf.

Features

General Description

Applications

Ordering Information