AP1609

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

AP1609 Rev. 2

1 of 9

FEBRUARY 2009

www.diodes.com

Lead-free

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Input Voltage Range: 2.5~6V

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Output Voltage Range: 3.0~17V (±2.5%)

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PWM/PFM Switching Control

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Oscillator Frequency: 300KHz (±20%)

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High Efficiency: 91% (Typ.)

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Built-in internal N-Channel MOS

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Lead Free Package: SOP-8L

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SOP-8L: Available in “Green” Molding Compound

(No Br, Sb)

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Lead Free Finish/ RoHS Compliant (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.

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Electronic Information Organizers

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Palmtops

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Cellular and Portable Phones

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Portable Audio Systems

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Various Multi-Function Power Supplies

AP 1609 S X - 13

Package

Packing

Lead Free

13 : Tape & Reel

G : Green

S : SOP-8L

L : Lead Free

Device

Package

Code

Packaging

(Note 2)

13” Tape and Reel

Quantity

Part Number Suffix

AP1609SL-13

S

SOP-8L

2500/Tape & Reel

-13

AP1609SG-13

S

SOP-8L

2500/Tape & Reel

-13

Notes:

1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

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

Features

General Description

Applications

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