FAN5307MPX

更新时间： 2024-02-03 02:30:30

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		转换器
页数	文件大小	规格书
12页	633K
描述
High-Efficiency Step-Down DC-DC Converter

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FAN5307MPX 数据手册

www.fairchildsemi.com

FAN5307

High-Efﬁciency Step-Down DC-DC Converter

Features

Description

• 95% Efﬁciency, Synchronous Operation

• Adjustable Output Voltage Option from 0.7V to V_IN

• 2.5V to 5.5V Input Voltage Range

• Customized Fixed Output Voltage Options

• Up to 300mA Output Current

• Fixed Frequency 1MHz PWM Operation

• High Efﬁciency Power Save Mode

• 100% Duty Cycle Low Dropout Operation

• Soft Start

The FAN5307, a high efﬁciency low noise synchronous

PWM current mode and Pulse Skip (Power Save) mode

DC-DC converter is designed for battery-powered applica-

tions. It provides up to 300mA of output current over a wide

input range from 2.5V to 5.5V. The output voltage can be

either internally ﬁxed or externally adjustable over a wide

range of 0.7V to 5.5V by an external voltage divider. Custom

output voltages are also available.

• Dynamic Output Voltage Positioning

• 15µA Quiescent Current

• Excellent Load Transient Response

• 5-Lead SOT-23 Package

At moderate and light loads pulse skipping modulation is

used. Dynamic voltage positioning is applied, and the output

voltage is shifted 0.8% above nominal value for increased

headroom during load transients. At higher loads the system

automatically switches to current mode PWM control,

operating at 1 MHz. A current mode control loop with fast

transient response ensures excellent line and load regulation.

In Power Save mode, the quiescent current is reduced to

15µA in order to achieve high efﬁciency and to ensure long

battery life. In shut-down mode, the supply current drops

below 1µA. The device is available in 5-lead SOT-23 and

6-lead MLP 3x3mm packages.

• 6-Lead MLP 3x3mm Package

Applications

• Pocket PCs, PDAs

• Cell Phones

• Battery-Powered Portable Devices

• Digital Cameras

• Low Power DSP Supplies

Typical Application

EFFICIENCY vs. LOAD CURRENT

_OUT= 1.8V

100

=2.5V

=3.6V

=5.5V

0.01

0.1

100

1000

Load Current [mA]

REV. 1.0.2 6/22/04

12 3 4 5 6 7...12

中文翻译

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FAN5307MPX 替代型号

型号	品牌	替代类型	描述	数据表
FAN5307SX	FAIRCHILD	类似代替	High-Efficiency Step-Down DC-DC Converter
FAN5307S18X	FAIRCHILD	功能相似	High-Efficiency Step-Down DC-DC Converter

与FAN5307MPX相关器件

型号	品牌	获取价格	描述	数据表
FAN5307MPX_NL	FAIRCHILD	获取价格	Switching Regulator, Current-mode, 0.7A, 1200kHz Switching Freq-Max, 3 X 3 MM, LEAD FREE,
FAN5307S15X	FAIRCHILD	获取价格	High-Efficiency Step-Down DC-DC Converter
FAN5307S18X	FAIRCHILD	获取价格	High-Efficiency Step-Down DC-DC Converter
FAN5307S18X_NL	FAIRCHILD	获取价格	Switching Regulator, Current-mode, 0.7A, 1200kHz Switching Freq-Max, PDSO5, LEAD FREE, SC-
FAN5307SX	FAIRCHILD	获取价格	High-Efficiency Step-Down DC-DC Converter
FAN5307SX_NL	FAIRCHILD	获取价格	Switching Regulator, Current-mode, 0.7A, 1200kHz Switching Freq-Max, PDSO5, LEAD FREE, SC-
FAN5308	FAIRCHILD	获取价格	800mA High-Efficiency Step-Down DC-DC Converter
FAN5308_07	FAIRCHILD	获取价格	800mA High-Efficiency Step-Down DC-DC Converter
FAN5308MPX	FAIRCHILD	获取价格	800mA High-Efficiency Step-Down DC-DC Converter
FAN5308MPX	ONSEMI	获取价格	High-efficiency step-down DC/DC converter

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