Datasheet > ASP9050

ASP9050

更新时间： 2024-11-19 17:15:31

品牌	Logo	应用领域
安森德 - ASDsemi		/
页数	文件大小	规格书
14页	2102K
描述
DFN10-3×3

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中文翻译

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数据手册

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ASP9050 数据手册

ASP9050

5.5V,5A,1MHz,ECOT,Sync Step-Down Regulator

•

Over temperature Protected

Low Quiescent Current: 40μA

Short Circuit Protection

Features

•

High Efficiency: Up to 96%

2.5V to 5.5V Input Voltage Range

1MHz Constant Frequency Operation

Up to 5.0A Current Output

Inrush Current Limit and Soft Start

DFN3*3-10 package

No Schottky Diode Required

Applications

•

Portable Instruments

SSD

•

Cellular and Smart Phones

Wireless and DSL Modems

PDAs

PC Cards

General Description

The ASP9050 is a high-efficiency ECOT Mode synchronous buck regulator using a constant frequency. The

device is available in an adjustable version. Supply current with no load is 40uA and drops to <1uA in shutdown.

The 2.5V to 5.5V input voltage range makes the ASP9050 ideally suited for single Li-Ion battery powered

applications. High duty cycle provides low dropout operation, extending battery life in portable systems. PWM/

PFM mode operation provides very low output ripple voltage for noise sensitive applications. Switching

frequency is internally set at 1MHz, allowing the use of small surface mount inductors and capacitors. Low

output voltages are easily supported with the 0.6V feedback reference voltage.

The ASP9050 is offered in a low profile 10-pin, thin DFN3*3-10 package, and is available in an adjustable version.

Typical Application Circuit

0.47uH

V_{OU T}=1.8V

V_IN=5V

PVIN

SVIN

C_FF

C_{OU T}

C_IN

R_{SVI N}

R_PG

100K

10Ω

22uF X 2

22pF

22uF X4

GND

C_{SVI N}

1uF

50K

C_SS

100nF

ON/OFF

ASP9050

Basic Application Circuit

行业领先的功率器件及模拟芯片设计公司

Ascend Sem ico nd uto r Co ., Ltd .

www.ascend sem i.co m

0755-86970486

NOV 2021 Version 1.1

1/14

12 3 4 5 6 7...14

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