AP1602

更新时间： 2024-11-18 08:31:43

品牌	Logo	应用领域
易亨 - ANACHIP		转换器
页数	文件大小	规格书
7页	164K
描述
Step-Up DC/DC Converter

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AP1602 数据手册

AP1602

Step-Up DC/DC Converter

Features

General Description

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

-High Efficiency.

The AP1602 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

AP1602 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 Packages: SOT89-5

Applications

The PFM control circuit operating in 100KHz (max.)

switching rate results in smaller passive

components. The space saving SOT89-5 packages

make the AP1602 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

Pin No.

OUT

REF

Description

Name

1.2V Reference Voltage. Bypass

with a 0.1µF capacitor.

AP1602A

REF

GND

Power Output. OUT provides

bootstrap power to the IC.

N-Channel and P-Channel Power

MOSFET Drain

OUT

SHDN

7 LX

GND

Ground

Shutdown Input. Drive high

(>80% of V_OUT) for operating

AP1602B

SOT89-5L

GND

mode. Drive low (<20% of V_OUT)

SHDN

for shutdown mode. Connect to

OUT for normal operation.

Feedback pin

REF 3

7 OUT

Ordering Information

AP1602 X X X X

Version

A: A version

B: B version

Package

Lead Free

Blank : Normal

L : Lead Free Package

Packing

Blank : Tube

Y: SOT89-5L

: Taping

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. 0.1 Apr. 14, 2004

1/7

12 3 4 5 6 7

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