Datasheet > MIC25400YML

MIC25400YML

更新时间： 2024-11-10 10:57:15

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器开关
页数	文件大小	规格书
27页	725K
描述
2A Dual Output PWM Synchronous Buck Regulator IC

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MIC25400YML 数据手册

MIC25400

2A Dual Output PWM Synchronous Buck

Regulator IC

General Description

Features

The MIC25400 is a synchronous PWM dual output step

down converter with internal 2A high-side switches. The

MIC25400 has an integrated low-side gate driver for

synchronous step-down conversion by connecting an

external N-channel MOSFET to achieve high efficiencies

in low duty-cycle applications. The IC’s switching

frequency is 1MHz. A patented control scheme allows the

use of a wide range of output capacitance from small

ceramic capacitors to large electrolytic types with only one

compensation component. A 2% output voltage tolerance

over the temperature range allows the maximum level of

system performance. The MIC25400 power good signal

allows full control for sequencing the output voltages with

minimum external components.

• 4.5V to 13.2V input voltage range

• Adjustable output voltages down to 0.7V

• 2A per channel

• 180° out of phase operation

• Low-side driver for synchronous operation

• 2% output voltage accuracy (over temperature)

• 1MHz switching frequency

• Output voltage sequencing

• Programmable max current-limit

• Power good output

• Ramp Control™ provides soft-start

• Low-side current sensing allows very low duty-cycle

• Works with ceramic output capacitors

• 24-pin 4mm x 4mm MLF^®package

• Junction temperature range of –40°C to +125°C

An adjustable current limit allows the use of smaller

inductors in lower current applications.

The MIC25400 is available in the ePAD 24-pin 4mm x

4mm MLF^®package, and has an operating junction

temperature range of –40°C to +125°C.

Applications

• Multi-output power supplies with sequencing

• DSP, FPGA, CPU and ASIC power supplies

• Telecom and networking equipment, servers

_________________________________________________________________________________________________________________________

Typical Application

MIC25400 Dual Output Buck Converter

Ramp Control is a trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-020111-C

January 2011

12 3 4 5 6 7...27

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与MIC25400YML相关器件

型号	品牌	获取价格	描述	数据表
MIC2544	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2544	MICROCHIP	获取价格	The MIC2544 and MIC2548 are integrated, high-side power switches optimized for low loss DC
MIC2544_10	MICREL	获取价格	Programmable Current Limit High-Side Switch
MIC2544-1	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2544-1BM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2544-1BM	MICROCHIP	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, 0.1A, CMOS, PDSO8, SOP-8
MIC2544-1BMM	MICREL	获取价格	Programmable Current Limit High-Side Switch Preliminary Information
MIC2544-1BMM	MICROCHIP	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, 0.1A, CMOS, PDSO8, MSOP-8
MIC2544-1BMMTR	MICROCHIP	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, 0.1A, CMOS, PDSO8, MSOP-8
MIC2544-1BMTR	MICROCHIP	获取价格	Buffer/Inverter Based Peripheral Driver, 1 Driver, 0.1A, CMOS, PDSO8, SOP-8

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