Datasheet > MIC23051

MIC23051

更新时间： 2024-11-15 14:53:15

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
20页	4612K
描述
The MIC23051 is a high efficiency 600mA PWM synchronous buck (step-down) regulator featuring Hyp

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MIC23051 数据手册

MIC23051

4 MHz PWM Buck Regulator with HyperLight Load^®and Voltage

Scaling

Features

General Description

• Input Voltage: 2.7V to 5.5V

• 600 mA Output Current

The MIC23051 is a high efficiency 600 mA PWM

synchronous buck (step-down) regulator featuring

HyperLight Load^®, a patented switching scheme that

offers best in class light load efficiency and transient

performance while providing very small external

components and low output ripple at all loads.

• Fixed Output Voltage 1.25V, 1.2V, 1.4V and 1.8V

with Voltage Scaling Down Using VSC pin to:

0.95V, 1.0V, 1.15V and 1.0V

• Ultra-Fast Transient Response

The MIC23051 has an output voltage scaling feature

that toggles between two different voltage levels.

• 20 µA Typical Quiescent Current

• 4 MHz CCM PWM Operation in Normal Mode

• 0.47 µH to 2.2 µH Inductor

The MIC23051 also has a very low typical quiescent

current draw of 20 µA and can achieve over 85%

efficiency even at 1 mA. The device allows operation

with a tiny inductor ranging from 0.47 µH to 2.2 µH and

uses a small output capacitor that enables a sub 1 mm

height solution.

• Low Voltage Output Ripple

- 25 mV_PPRipple in HyperLight Load^®Mode

- 3 mV Output Voltage Ripple in Full PWM

Mode

• >93% Efficiency

In contrast to traditional light load schemes, HyperLight

Load^®architecture does not need to trade off control

speed to obtain low standby currents and in doing so

the device only needs a small output capacitor to

absorb the load transient as the powered device goes

from light load to full load.

• ~85% at 1 mA

• Micropower shutdown

• Available in 8-pin 2 mm x 2 mm DFN Package

• –40°C to +125°C Junction Temperature Range

Applications

• Cellular Phones

At higher loads the MIC23051 provides a constant

switching frequency of greater than 4 MHz while

providing peak efficiencies greater than 93%.

• Digital Cameras

• Portable Media Players

• Wireless LAN Cards

• WiFi/WiMax/WiBro Modules

• USB Powered Devices

The MIC23051 is available in fixed output voltage

options eliminating external feedback components.

The MIC23051 is available in an 8-pin 2 mm x 2 mm

DFN with a junction operating range from –40°C to

+125°C.

Package Type

8-Pin 2 mm x 2 mm DFN

(Top View)

PGND

VIN

VSC

SNS

AGND

CFF

 2020 Microchip Technology Inc.

DS20006471A-page 1

12 3 4 5 6 7...20

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与MIC23051相关器件

型号	品牌	获取价格	描述	数据表
MIC23051_09	MICREL	获取价格	4MHz PWM Buck Regulator with HyperLight Load and Voltage Scaling
MIC23051-16YML	MICREL	获取价格	4MHz PWM Buck Regulator 4MHz PWM Buck Regulator and Voltage Scaling
MIC23051-16YMLTR	MICREL	获取价格	2A SWITCHING REGULATOR, 4600kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, GREEN, MLF-8
MIC23051-16YML-TR	MICROCHIP	获取价格	2A SWITCHING REGULATOR, 4600kHz SWITCHING FREQ-MAX, PDSO8
MIC23051-945YML	MICREL	获取价格	4MHz PWM Buck Regulator 4MHz PWM Buck Regulator and Voltage Scaling
MIC23051-C4YML	MICREL	获取价格	4MHz PWM Buck Regulator 4MHz PWM Buck Regulator and Voltage Scaling
MIC23051-CGYML	MICREL	获取价格	4MHz PWM Buck Regulator 4MHz PWM Buck Regulator and Voltage Scaling
MIC23051-CGYMLTR	MICREL	获取价格	2A SWITCHING REGULATOR, 4600kHz SWITCHING FREQ-MAX, PDSO8, 2 X 2 MM, GREEN, MLF-8
MIC23060	MICREL	获取价格	Sequenced Power Management IC with HyperLight Load? DC/DC and Dual Input LDO?
MIC23060-G4YMT	MICREL	获取价格	Sequenced Power Management IC with HyperLight Load? DC/DC and Dual Input LDO?

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