深圳市中立信电子科技有限公司

1 Features

1• Input Voltage Range: 2.0 V to 16 V

• Output Voltage Range: 2.5 V to 9 V

• Up to 95% Efficiency

• +/- 1% dc accuracy in PWM mode

• +3% / -1% dc accuracy in PFM mode

• 2 A Output Current in Buck Mode

• 2 A Output Current in Boost Mode

(VIN = 4 V; Vout = 5 V)

• Precise ENABLE input allows

– user defined undervoltage lockout

– exact sequencing

• Automatic Transition Between Step Down and

Boost Mode

• Typical Device Quiescent Current: 50 μA

• Fixed and Adjustable Output Voltage Options

• Power Save Mode for Improved Efficiency at Low

Output Power

• Forced Fixed Frequency Operation at 2.4 MHz

and Synchronization Option

• Power Good Output

2 Applications

• Dual LI-Ion Applications

• Industrial Metering Equipment

• DSC's and Camcorders

• Notebook Computers

• Ultra Mobile PC's and Mobile Internet Devices

• Personal Medical Products

3 Description

The TPS6307x is a high efficiency, low quiescent

current buck-boost converter suitable for applications

where the input voltage can be higher or lower than

the output voltage. Output currents can go as high as

2 A in boost mode and in buck mode. The buck-boost

converter is based on a fixed frequency, pulse-widthmodulation

(PWM) controller using synchronous

rectification to obtain maximum efficiency. At low load

currents, the converter enters Power Save Mode to

maintain high efficiency over a wide load current

range. The converter can be disabled to minimize

battery drain. 

1功能

输入电压范围:2.0 V - 16v

•输出电压范围:2.5 V - 9v

•高达95%的效率

•+/- 1%的直流精度在PWM模式

•+3% / -1%直流精度在PFM模式

•2 Buck模式输出电流

•2升压模式下的输出电流

(VIN = 4v;Vout = 5 V)

•允许的启用输入

-用户定义的欠压锁定

——测序

•自动转换之间的步骤和

提升模式

•典型设备静态电流:50μA

•固定和可调输出电压选项

•低功耗模式，提高效率

输出功率

•强制固定频率运行在2.4 MHz

和同步选项

输出功率好

2应用程序

•双锂离子应用

•工业计量设备

DSC和摄像机

•笔记本电脑

•超移动PC和移动互联网设备

•个人医疗产品

3描述

TPS6307x是一种高效率，低静止的

适用于各种应用场合

输入电压可以高于或低于

输出电压。输出电流可以达到

在升压模式和降压模式。的buck-boost

转换器是基于固定频率，脉宽调制

(PWM)同步控制器

纠正以获得的效率。在低负荷

电流，转换器进入省电模式

在宽负载电流下保持高效率

的范围内。可以禁用转换器以化

电池消耗。停机时，负载为

与电池断开。设备是可用的

在2.5毫米x3毫米的QFN包装。