Datasheet > MIC23303

MIC23303

更新时间： 2024-09-21 14:53:03

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
21页	980K
描述
The MIC23303 is a high efficiency 4MHz 3A synchronous buck regulator with HyperLight Load? mode, P

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MIC23303 数据手册

MIC23303

4MHz PWM 3A Buck Regulator with

HyperLight Load™ and Power Good

General Description

Features

The MIC23303 is a high-efficiency 4MHz 3A 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 MIC23303

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 3mm × 3mm

DFN package saves precious board space and requires

only six external components.

• Input voltage: 2.7V to 5.5V

• Output voltage: down to 0.65

• Up to 3A output current

• Up to 93% peak efficiency

• 80% typical efficiency at 1mA

• Power Good output

• Programmable soft-start

• 24µA typical quiescent current

• 4MHz PWM operation in continuous mode

• Ultra-fast transient response

• Low ripple output voltage

− 35mVpp ripple in HyperLight Load mode

− 5mV output voltage ripple in full PWM mode

• Fully-integrated MOSFET switches

• 0.01µA shutdown current

The MIC23303 is designed for use with a very small

inductor, down to 0.33µH, and an output capacitor as small

as 10µF that enables a total solution size less than 1mm in

height.

The MIC23303 has very low quiescent current of 24µA and

can achieve peak efficiency of 93% in continuous

conduction mode. In discontinuous conduction mode, the

MIC23303 can achieve 80% efficiency at 1mA.

• Thermal-shutdown and current-limit protection

• 12-pin 3mm × 3mm DFN

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

The MIC23303 is available in a 12-pin 3mm × 3mm DFN

package with an operating junction temperature range

from –40°C to +125°C.

Applications

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

• Portable media/MP3 players

• Portable navigation devices (GPS)

• WiFi/WiMax/WiBro modules

• Digital Cameras

• Wireless LAN cards

• Portable applications

Typical Application

HyperLight Load is a trademark of Micrel, 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

090613-2.0

September 6, 2013

12 3 4 5 6 7...21

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与MIC23303相关器件

型号	品牌	获取价格	描述	数据表
MIC23303YML	MICREL	获取价格	4MHz PWM 3A Buck Regulator with HyperLight Lo
MIC23303YML-T5	MICROCHIP	获取价格	IC REG BUCK ADJ 3A SYNC 12DFN
MIC23303YML-TR	MICROCHIP	获取价格	SWITCHING REGULATOR
MIC23350	MICROCHIP	获取价格	The MIC23350 is a high-efficiency, low-voltage input, 3A continuous current synchronous st
MIC23356	MICROCHIP	获取价格	The MIC23656 is a high-efficiency, low-voltage input, 3Apeak current synchronous step-down
MIC23356-FAYFT	MICROCHIP	获取价格	Switching Regulator
MIC23356-FAYFT-TR	MICROCHIP	获取价格	Switching Regulator, 6.5A, 2200kHz Switching Freq-Max
MIC23356-HAYFT	MICROCHIP	获取价格	Switching Regulator
MIC23356-HAYFT-TR	MICROCHIP	获取价格	Switching Regulator, 6.5A, 2200kHz Switching Freq-Max
MIC23356-SAYFT	MICROCHIP	获取价格	Switching Regulator

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