Datasheet > MIC33153

MIC33153

更新时间： 2024-09-26 10:57:07

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
17页	919K
描述
4MHz PWM 1.2A Internal Inductor Buck Regulator with HyperLight Load and Power Good

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MIC33153 数据手册

MIC33153

4MHz PWM 1.2A Internal Inductor

Buck Regulator with HyperLight Load™

and Power Good

General Description

Features

• Internal inductor

The MIC33153 is

high-efficiency 4MHz 1.2A

synchronous buck regulator with an internal inductor,

HyperLight Load™ mode, Power Good (PG) output

indicator, and programmable soft start. HyperLight Load™

provides very high efficiency at light loads and ultra-fast

transient response which makes the MIC33153 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.

− Simplifies design to two external capacitors

• Input voltage: 2.7V to 5.5V

• Output voltage: fixed or adjustable (0.62V to 3.6V)

• Up to 1.2 A output current

• Up to 93% peak efficiency

• 85% typical efficiency at 1mA

• Power Good (PG) output

• Programmable soft start

• 22µA typical quiescent current

• 4MHz PWM operation in continuous mode

• Ultra-fast transient response

• Low ripple output voltage

The MIC33153 is designed so that only two external

capacitors as small as 2.2µF are needed for stability. This

gives the MIC33153 the ease of use of an LDO with the

efficiency of a HyperLight Load™ DC converter. The

MIC33153 achieves efficiency in HyperLight Load^TMmode

as high as 85% at 1mA, with a very low quiescent current

of 22µA. At higher loads, the MIC33153 provides a

constant switching frequency up to 4MHz.

− 35mVpp ripple in HyperLight Load^™mode

− 7mV output voltage ripple in full PWM mode

• 0.01µA shutdown current

• Thermal shutdown and current limit protection

• 14-pin 3.0 x 3.5 x 1.1mm MLF^®package

The MIC33153 is available in 14-pin 3.0mm x 3.5mm

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.

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

Applications

• Solid State Drives (SSD)

• Mobile handsets

• Portable media/MP3 players

• Portable navigation devices (GPS)

• WiFi/WiMax/WiBro modules

• Wireless LAN cards

• Portable applications

____________________________________________________________________________________________________________

Typical Application

Fixed Output Voltage

Adjustable Output Voltage

HyperLight Load is a trademark of Micrel, Inc.

MLF and MicroLeadFrame are registered trademark Amkor Technology Inc.

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-01200 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-092910-A

September 2010

12 3 4 5 6 7...17

中文翻译

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与MIC33153相关器件

型号	品牌	获取价格	描述	数据表
MIC33153-4YHJ	MICREL	获取价格	4MHz PWM 1.2A Internal Inductor Buck Regulator with HyperLight Load and Power Good
MIC33153-SYHJ-TR	MICROCHIP	获取价格	Switching Regulator/Controller
MIC33153YHJ	MICREL	获取价格	4MHz PWM 1.2A Internal Inductor Buck Regulator with HyperLight Load and Power Good
MIC-3321	ADVANTECH	获取价格	3U CompactPCI Pentium M 2.0G High performance Controller
MIC-3321_15	ADVANTECH	获取价格	3U CompactPCIÂ® Intel CeleronÂ® M 1GHz / Pent
MIC-3321C	ADVANTECH	获取价格	3U CompactPCI Pentium M 2.0G High performance Controller
MIC-3321C-CE	ADVANTECH	获取价格	3U CompactPCIÂ® Intel CeleronÂ® M 1GHz / Pent
MIC-3321D-CE	ADVANTECH	获取价格	3U CompactPCIÂ® Intel CeleronÂ® M 1GHz / Pent
MIC-3323_15	ADVANTECH	获取价格	3U CompactPCIÂ® Intel CoreÂ® 2 Duo 1.66GHz /
MIC-3323D01-A33E	ADVANTECH	获取价格	3U CompactPCIÂ® Intel CoreÂ® 2 Duo 1.66GHz /

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