Datasheet > FAN6520A_06

FAN6520A_06

更新时间： 2024-01-23 01:40:54

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		控制器
页数	文件大小	规格书
15页	482K
描述
Single Synchronous Buck PWM Controller

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FAN6520A_06 数据手册

October 2006

FAN6520A

Single Synchronous Buck PWM Controller

Features

Description

■ Output Range: 0.8V to V_IN

The FAN6520A simplifies implementing a complete con-

trol and protection scheme for a DC-DC stepdown con-

verter. Designed to drive N-channel MOSFETs in a

synchro-nous buck topology, the FAN6520A integrates

the control, output adjustment, monitoring, and protec-

tion functions into a single 8-lead package.

– 0.8V Internal Reference

– ±1.5% Over Line Voltage and Temperature

■ Drives N-Channel MOSFETs

■ Simple Single-Loop Control Design

– Voltage-Mode PWM Control

■ Fast Transient Response

The FAN6520A employs a single feedback loop and volt-

age-mode control with fast transient response. The out-

put voltage can be precisely regulated to as low as 0.8V,

with a maximum tolerance of ±1.5% over-temperature

and line-voltage variations. A fixed-frequency oscillator

reduces design complexity, while balancing typical appli-

cation cost. The error amplifier features a 15MHz gain-

bandwidth product and an 8V/µs slew rate, which

enables high converter bandwidth for fast transient per-

formance. The resulting PWM duty cycles range from

0% to 100%.

– High-Bandwidth Error Amplifier

– Full 0% to 100% Duty Cycle

■ Lossless, Programmable, Over-Current Protection

– Uses Upper MOSFET’s R_DS(ON)

■ Small Converter Size

– 300kHz Fixed-Frequency Oscillator

– Internal Soft-Start

– 8-Lead SOIC

Applications

■ Power Supplies for PC Subsystems and Peripherals

■ MCH, GTL, and AGP Supplies

The IC monitors the drop across the upper MOSFET and

inhibits PWM operation appropriately to protect against

over-current conditions. This approach simplifies the

implementation and improves efficiency by eliminating

the need for a current sense resistor.

■ Cable Modems, Set-Top Boxes, and DSL Modems

■ DSP, Memory

The FAN6520A is rated for operation from 0° to +70°C,

with the FAN6520AI rated from –40° to +85°C.

■ Low-Voltage Distributed Power Supplies

Ordering Information

Part Number

FAN6520AM

Temperature Range

0°C to 70°C

Package

SOIC-8

Packing

Rails

FAN6520AMX

FAN6520AIM

FAN6520AIMX

0°C to 70°C

Tape and Reel

Rails

–40°C to 85°C

Tape and Reel

FAN6520A Rev. 1.0.5

www.fairchildsemi.com

12 3 4 5 6 7...15

中文翻译

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与FAN6520A_06相关器件

型号	品牌	获取价格	描述	数据表
FAN6520AIM	FAIRCHILD	获取价格	Single Synchronous Buck PWM Controller
FAN6520AIM_NL	FAIRCHILD	获取价格	Switching Controller, Voltage-mode, 1A, 340kHz Switching Freq-Max, PDSO8, LEAD FREE, MS-01
FAN6520AIMX	FAIRCHILD	获取价格	Single Synchronous Buck PWM Controller
FAN6520AIMX_NL	FAIRCHILD	获取价格	Switching Controller, Voltage-mode, 1A, 340kHz Switching Freq-Max, PDSO8, LEAD FREE, MS-01
FAN6520AM	FAIRCHILD	获取价格	Single Synchronous Buck PWM Controller
FAN6520AM_NL	FAIRCHILD	获取价格	Switching Controller, Voltage-mode, 1A, 340kHz Switching Freq-Max, PDSO8, LEAD FREE, MS-01
FAN6520AMX	FAIRCHILD	获取价格	Single Synchronous Buck PWM Controller
FAN6520AMX_NL	FAIRCHILD	获取价格	Switching Controller, Voltage-mode, 1A, 340kHz Switching Freq-Max, PDSO8, LEAD FREE, MS-01
FAN6520B	FAIRCHILD	获取价格	Single Synchronous Buck PWM Controller
FAN6520BIM	FAIRCHILD	获取价格	Single Synchronous Buck PWM Controller

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