MIC23155

更新时间： 2024-09-19 12:20:39

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
19页	732K
描述
3MHz PWM 2A Buck Regulator with HyperLight Load and Power Good

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MIC23155 数据手册

MIC23155

3MHz PWM 2A Buck Regulator with

HyperLight Load^®and Power Good

General Description

Features

• Input voltage: 2.7V to 5.5V

• Output voltage: fixed or adjustable (down to 0.7V)

• Up to 2A output current

• Up to 94% peak efficiency

• 85% typical efficiency at 1mA

• Power Good output

• Programmable Soft Start

• 22µA typical quiescent current

• 3MHz PWM operation in continuous conduction mode

• Ultra fast transient response

• Active output discharge when disabled

• Low output voltage ripple

• Fully integrated MOSFET switches

• 0.01µA shutdown current

• Thermal shutdown and current limit protection

• 10-pin 2.5mm x 2.5mm Thin MLF^®

• –40°C to +125°C junction temperature range

The MIC23155 is a high efficiency 3MHz 2A synchronous

buck regulator with HyperLight Load^®mode, Power Good

output indicator, and programmable soft start. HyperLight

Load^®provides very high efficiency at light loads and ultra

fast transient response which makes the MIC23155

perfectly suited for supplying processor core voltages. An

additional benefit of this proprietary architecture is very low

output ripple voltage throughout the entire load range with

the use of small output capacitors. The tiny 2.5mm x

2.5mm Thin MLF^®package saves precious board space

and requires only four external components.

The MIC23155 is designed for use with a very small

inductor, down to 0.47µH, and an output capacitor as small

as 2.2 µF that enables a total solution size, less than 1mm

in height.

The MIC23155 has a very low quiescent current of 22µA

and achieves a peak efficiency of 94% in continuous

conduction mode. In discontinuous conduction mode, the

MIC23155 can achieve 85% efficiency at 1mA.

Applications

The MIC23155 is available in a 10-pin 2.5mm x 2.5mm

Thin MLF^®package with an operating junction temperature

range from –40°C to +125°C.

Datasheets and support documentation can be found on

Micrel’s web site at: www.micrel.com.

• Solid State Drives (SSD)

• Smart phones

• Tablet PCs

• Mobile handsets

• Portable devices (PMP, PND, UMPC)

• WiFi/WiMax/WiBro applications

____________________________________________________________________________________________________________

Typical Application

Fixed Output Voltage

Adjustable Output Voltage

HyperLight Load is a registered trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademarks 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

M9999-041811-A

April 2011

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与MIC23155相关器件

型号	品牌	获取价格	描述	数据表
MIC23155-GYMT	MICREL	获取价格	3MHz PWM 2A Buck Regulator with HyperLight Load and Power Good
MIC23155-GYMTTR	MICREL	获取价格	IC,SMPS CONTROLLER,VOLTAGE-MODE,LLCC,10PIN,PLASTIC
MIC23155-GYMT-TR	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC23155YMT	MICREL	获取价格	3MHz PWM 2A Buck Regulator with HyperLight Load and Power Good
MIC23155YMT-TR	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC23156	MICREL	获取价格	1.5A, 3MHz Synchronous Buck Regulator with Hy
MIC23156	MICROCHIP	获取价格	The MIC23156 is a high-efficiency 1.5A synchronous buck regulator with HyperLight Load? mo
MIC23156-0YCS	MICREL	获取价格	1.5A, 3MHz Synchronous Buck Regulator with Hy
MIC231560YCS-T5	MICROCHIP	获取价格	1.5A, 3MHz Synchronous Buck Regulator with Hy
MIC23156-0YCS-TR	MICROCHIP	获取价格	SWITCHING REGULATOR

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