EV2149-J-00A

6V, Dual 1A Low Quiescent Current

SYNC Buck Regulator

EV2149-J-00A Rev. 1.0

www.MonolithicPower.com

1

9/17/2014

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

© 2014 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV2149-J-00A is used for demonstrating the

performance of MPS’s MP2149, an internally

compensated 1MHz fixed-frequency dual PWM

synchronous step-down regulator.

MP2149 is ideal for powering portable equipment

that runs from a single cell Lithium-Ion (Li+)

Battery due to 45µA low quiescent current. The

output voltage can be regulated as low as 0.608V.

With peak current mode control and internal

compensation, the MP2149 requires a minimum

number of readily available standard external

components and is available in an 8-pin TSOT23

package.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

(1)

2.7-6

V

Output Voltage

1.8

V

1.2

V

Output Current

1

A

1

A

Notes:

FEATURES

• 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

• 45µA Quiescent Current

• Cycle-by-cycle Over Current Protection

• Short Circuit Protection with Hiccup Mode

• Thermal Shutdown

• Available in an 8-pin TSOT23 Package

APPLICATIONS

• Small/Handhold Devices

• DVD Drivers

• Portable Instruments

• Smartphone and Feature Phones

• Battery-Powered Devices

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

Board Number

MPS IC Number

EV2149-J-00A

MP2149GJ

30

40

50

60

70

80

90

100

0.01

0.1

1