Datasheet > TD6810

TD6810

更新时间： 2024-11-07 11:46:35

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描述
1.5MHz 800mA Synchronous Step-Down Regulator Dropout

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TD6810 数据手册

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1.5MHz 800mA Synchronous Step-Down Regulator

Dropout

TD6810

汪工 TEL:13828719410 QQ:1929794238

General Description Features

The TD6810 is a high efficiency monolithic synchronous

buck regulator using a constant frequency, current mode

architecture. The device is available in an adjustable

version and fixed output voltages of 1.5V and 1.8V.

Supply current during operation is only 20mA and drops

to ≤1mA in shutdown. The 2.5V to 5.5V input voltage

range makes the TD6810 ideally suited for single Li-Ion

battery-powered applications. 100% duty cycle provides

low dropout operation, extending battery life in portable

systems.Automatic Burst Mode operation increases

efficiency at light loads, further extending battery life.

Switching frequency is internally set at 1.5MHz, allowing

the use of small surface mount inductors and capacitors.

The internal synchronous switch increases efficiency and

eliminates the need for an external Schottky diode. Low

output voltages are easily supported with the 0.6V

feedback reference voltage. The TD6810 is available in a

low profile (1mm) TSOT23-5 package.

High Efficiency: Up to 96%

High Efficiency at light loads

Very Low Quiescent Current: Only 20uA During

Operation

800mA Output Current

2.5V to 5.5V Input Voltage Range

1.5MHz Constant Frequency Operation

No Schottky Diode Required

Low Dropout Operation: 100% Duty Cycle

0.6V Reference Allows Low Output Voltages

Shutdown Mode Draws ≤1uA Supply Current

Current Mode Operation for Excellent Line and Load

Transient Response

Overtemperature Protected

Low Profile (1mm) TSOT23-5 Package

Applications

Cellular Telephones

Personal Information Appliances

Wireless and DSL Modems

Digital Still Cameras

MP3 Players

Portable Instruments

Package Types

SOT235

gure 1. Package Types of TD6810

www.tongchuangwei.com

July, 02, 2011

Techcode Semiconductor Limited

12 3 4 5 6 7...17

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