Datasheet > SE3806

SE3806

更新时间： 2024-11-05 06:11:03

品牌	Logo	应用领域
思旺 - SEAWARD		稳压器
页数	文件大小	规格书
2页	92K
描述
1.25MHz, 600mA Synchronous Step-Down Regulator

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数据手册

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SE3806 数据手册

1.25MHz, 600mA Synchronous

Step-Down Regulator

(Preliminary)

SE3806

Description

Features

The SE3806 is a high efficiency monolithic

High Efficiency: Up to 96%

synchronous buck regulator using a constant

frequency, voltage mode architecture. The device

is available in fixed output voltage of 1.8V and 1.5V

and adjustable output voltage. Supply current

during operation is only 20μA and drop to ≤1μA in

shutdown. The 2.5V to 5.5V input voltage range

makes the SE3806 ideally suited for single Li-Ion

battery-powered applications. 100% duty cycle

provides low dropout operation, extending battery

life in portable systems.

Very Low Quiescent Current: Only 20μA

During Operation

600mA Output Current

2.5V to 5V Input Voltage Range

1.25MHz Constant Frequency Operation

No Schottky Diode Required

Low Dropout Operation: 100% Duty Cycle

Shutdown Mode draws ≤ 1μA Supply Current

Excellent Line and Load Transient Response

Overtemperature Protection

Available in SOT Package

Switching frequency is internally set at

1.25MHz, allowing the use of small surface mount

inductors and capacitors.

Application

The internal synchronous switch increases

efficiency and eliminates the need for an external

Schottky diode. The SE3806 is available in low

profile SOT package.

Cellular Phone

Personal Information Appliances

Wireless and DSL Modems

Digital Still Cameras

MP3 Players

Pin Configuration

5 Lead SOT-23

Portable Instruments

Application Diagram

Revision 12/4/2008

Preliminary and all contents are subject to change without prior notice

中文翻译

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