Datasheet > MP9148

MP9148

更新时间： 2024-01-26 01:52:53

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
14页	519K
描述
6V, 1A, Low Quiescent Current Dual, SYNC Buck Regulator

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MP9148 数据手册

MP9148

6V, 1A, Low Quiescent Current

Dual, SYNC Buck Regulator

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP9148 is an internally-compensated,

1MHz fixed-frequency, dual PWM, synchronous,

step-down regulator. The MP9148 operates

from a 2.7V-to-6V input, generates an output

voltage as low as 0.608V, and has a 45µA

quiescent current that makes it ideal for

powering portable equipment that runs on a

single cell lithium-ion (Li+) battery.

•

Dual 1A-Output Current

>93% Peak Efficiency

>80% Light-Load Efficiency

Wide 2.7V-to-6V Operating Input Range

100mΩ and 40mΩ Internal Power MOSFET

1MHz Fixed Switching Frequency

Adjustable Output from 0.608V to VIN

180° Phase-Shifted Operation

100% Duty-Cycle Operation

The MP9148 integrates dual 100mΩ high-side

switches and 40mΩ synchronous rectifiers for

high efficiency without an external Schottky

diode. Peak-current mode control and internal

compensation limits the minimum number of

readily-available external components.

45µA Quiescent Current

Cycle-by-Cycle Over-Current Protection

Short-Circuit Protection with Hiccup Mode

Thermal Shutdown

Available in an 8-pin TSOT23-8 Package

Fault-condition protections include cycle-by-cycle

current limiting and thermal shutdown.

APPLICATIONS

•

Small/Handhold Devices

DVD Drivers

Portable Instruments

Smartphones and Feature Phones

Battery-Powered Devices

The MP9148 is available in an 8-pin TSOT23-8

package.

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

VIN

100

22 F

EN1

EN2

EN1

EN2

1.5

VOUT1

1.8V

VOUT2

1.2V

SW1

SW2

MP9148

GND

C_{OUT 2}

22 F

C_OUT1

22 F

806k

FB1

FB2

412k

825k

0.01

0.1

MP9148 Rev.1.0

11/10/2014

www.MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

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