Datasheet > FAN5362UC29X

FAN5362UC29X

更新时间： 2024-09-26 10:28:11

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		稳压器
页数	文件大小	规格书
14页	1238K
描述
3MHz, 500mA / 750mA Synchronous Buck Regulator

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FAN5362UC29X 数据手册

November 2010

FAN5362

3MHz, 500mA / 750mA Synchronous Buck Regulator

Features

Description

The FAN5362 is a 500mA or 705mA, step-down, switching

voltage regulator that delivers a fixed output voltage from

an input voltage supply of 2.7V to 5.5V. Using a proprietary

architecture with synchronous rectification, the FAN5362 is

capable of delivering a peak efficiency of 96%, while

maintaining efficiency over 90% with load currents as

low as 1mA.

3MHz Fixed-Frequency Operation

45µA Typical Quiescent Current

1.80 to 3.6V Fixed Output Voltage

500mA or 750mA Output Current Capability

2.7V to 5.5V Input Voltage Range

Smooth Transitions to/from 100% Duty Cycle

This regulator transitions seamlessly into and out of 100%

duty cycle operation when the supply dips to or below the

regulation setpoint and smoothly recovers full regulation

without overshoot when the supply recovers.

when V_INDrops

PFM Mode for High Efficiency in Light Load

Best-in-Class Load Transient Response

Best-in-Class Efficiency

Forced PWM and External Clock Synchronization

Internal Soft-Start

The regulator operates at a nominal fixed frequency of

3MHz, which reduces the value of the external components

to 1µH for the output inductor and 4.7µF for the output

capacitor. The PWM modulator can be synchronized to an

external frequency source.

Input Under-Voltage Lockout (UVLO)

Thermal Shutdown and Overload Protection

At moderate and light loads, pulse frequency modulation is

used to operate the device in power-save mode with a

typical quiescent current of 45µA. Even with such a low

quiescent current, the part exhibits excellent transient

response during large load swings. At higher loads, the

system automatically switches to fixed-frequency control,

operating at 3MHz. In shutdown mode, the supply current

drops below 1µA, reducing power consumption. For

applications that require minimum ripple or fixed frequency,

PFM mode can be disabled using the MODE pin.

6-Bump WLCSP, 0.4mm Pitch or 6-Lead 2 x 2mm

Ultrathin Molded Leadless Package

Applications

SD Flash Memory Power Supply

RF Transeiver Power

Cell Phones, Smart Phones

The FAN5362 is available in 6-bump, 0.4mm pitch, Wafer-

Level Chip-Scale Package (WLCSP) and 6-Lead 2 x 2mm

Ultrathin Molded Leadless Package (UMLP).

Tablets, Netbooks^®, Ultra-Mobile PCs

3G, LTE, WiMAX™, WiBro^®, and WiFi^®Data Cards

Gaming Devices, Digital CamerasDC/DC Micro Modules

Figure 1. Typical Application

Trademarks are the property of their respective owners.

FAN5362 • Rev. 1.0.1

www.fairchildsemi.com

12 3 4 5 6 7...14

中文翻译

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FAN5362UC29X 替代型号

型号	品牌	替代类型	描述	数据表
FAN5362UC33X	FAIRCHILD	类似代替	3MHz, 500mA / 750mA Synchronous Buck Regulator
FAN5361UC10X	FAIRCHILD	功能相似	6MHz, 600mA TinyBuck⑩ Synchronous Buck Regula
FAN5361UC12X	FAIRCHILD	功能相似	6MHz, 600mA TinyBuck⑩ Synchronous Buck Regula

与FAN5362UC29X相关器件

型号	品牌	获取价格	描述	数据表
FAN5362UC33X	FAIRCHILD	获取价格	3MHz, 500mA / 750mA Synchronous Buck Regulator
FAN5362UC33X	ONSEMI	获取价格	3MHz, 500mA / 750mA 同步降压稳压器
FAN5362UMP29X	ONSEMI	获取价格	3MHz, 500mA / 750mA 同步降压稳压器
FAN5362UMP29X	FAIRCHILD	获取价格	3MHz, 500mA / 750mA Synchronous Buck Regulator
FAN5362UMP33X	FAIRCHILD	获取价格	3MHz, 500mA / 750mA Synchronous Buck Regulator
FAN5362UMP33X	ONSEMI	获取价格	3MHz, 500mA / 750mA 同步降压稳压器
FAN5365	FAIRCHILD	获取价格	1A / 0.8A, 6MHz Digitally Programmable Regulator
FAN5365UC00X	FAIRCHILD	获取价格	1A / 0.8A, 6MHz Digitally Programmable Regulator
FAN5365UC00X	ONSEMI	获取价格	1A/0.8A 6MHz数字化可编程稳压器
FAN5365UC02X	FAIRCHILD	获取价格	1A / 0.8A, 6MHz Digitally Programmable Regulator

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