AP1603

更新时间： 2024-11-17 22:39:11

品牌	Logo	应用领域
易亨 - ANACHIP		转换器电阻器
页数	文件大小	规格书
8页	167K
描述
Step-Up DC/DC Converter

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中文翻译

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AP1603 数据手册

AP1603

Step-Up DC/DC Converter

Features

General Description

-A Guaranteed Start-Up from less than 0.9 V.

-High Efficiency.

The AP1603 is a high efficiency step-up DC/DC

converter for applications using 1 to 2 NiMH battery

cells. Only three external components are required

to deliver a fixed output voltage of 3.3V. The

AP1603 starts up from less than 0.9V input with

1mA load. Pulse Frequency Modulation scheme

brings optimized performance for applications with

light output loading and low input voltages. The

output ripple and noise are lower compared with the

circuits operating in PSM mode.

-Low Quiescent Current.

-Less Number of External Components needed.

-Low Ripple and Low Noise.

-Space Saving Pb-Free Packages: SOT23-6

Applications

The PFM control circuit operating in 150KHz (max.)

switching rate results in smaller passive

components. The space saving SOT23-6 packages

make the AP1603 an ideal choice of DC/DC

converter for space conscious applications, like

pagers, electronic cameras, and wireless

microphones.

-Pagers.

-Cameras.

-Wireless Microphones.

-Pocket Organizers.

-Battery Backup Suppliers.

-Portable Instruments.

Pin Assignments

Pin Descriptions

Name

Description

1.2V Reference Voltage. Bypass with a 0.1µF

REF

capacitor.

SHDN

Power Output. OUT provides bootstrap power

OUT

to the IC.

AP1603

N-Channel and P-Channel Power MOSFET

OUT

GND

REF

Drain

GND Ground

Shutdown Input. Drive high (>80% of V_OUT) for

operating mode. Drive low (<20% of V_OUT) for

shutdown mode. Connect to OUT for normal

operation.

SOT23-6L

SHDN

FB Feedback

Ordering Information

AP1603

Package

Packing

Blank : Tube

: Taping

W: SOT23-6L

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev.1.0 Jun. 3, 2004

1/8

12 3 4 5 6 7 8

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