EV2131-G-00A

4A, 5.5V, 1.2MHz Synchronous

Step-Down Switcher Evaluation Board

EV2130DG-01A Rev.1.0

www.MonolithicPower.com

1

11/14/2014

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© 2014 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The EV2131-G-00A is used for demonstrating

the performance of MPS’s MP2131, a low

voltage high switching frequency step-down

switcher with built in power MOSFETs. MP2131

provides up to 4A highly efficient output with

constant-on-time control for fast loop response.

MP2131

is

ideal

for

powering

portable

equipment that runs from a single cell Lithium-

ion (Li+) Battery. The output voltage can be

regulated as low as 0.6V.

High power efficiency over a wide load range is

achieved by scaling down the switching

frequency at light load to reduce the switching

related loss by constant on time control. Short

circuit and thermal shutdown provides reliable,

fault-tolerant operation.

MP2131 is available in QFN12 (2x2mm)

package.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Input Voltage

2.7– 5.5

V

Output Voltage

1.2

V

Output Current

4

A

FEATURES

• Wide 2.7V to 5.5V Operating Input Range

• Up to 4A Output Current

• 19μA Quiescent Current

• 32mΩ and 17mΩ Internal Power MOSFET

• 1.2MHz CCM Switching Frequency

• EN and Power Good for Power Sequencing

• Cycle-by-Cycle Over Current Protection

• Auto Discharge at Power Off

• Short Circuit Protection with Hiccup Mode

• Thermal Shutdown

• Stable with Low ESR Ceramic Output

Capacitors

• Internal Soft-Start

• Available in a QFN12 (2x2mm) Package

APPLICATIONS

•

Storage Drives

•

Portable/Handheld Devices

•

Wireless/Networking Cards

• Low Voltage I/O System Power

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“MPS” and “The Future of Analog IC Technology”, are Registered Trademarks

of Monolithic Power Systems, Inc.

ADAM (Analog Digital Adaptive Modulation), AAM (….) areTrademarks of

Monolithic Power Systems, Inc.

The MP#### is covered by US Patents #,###,###, #,###,###, #,###,###.

EV2131-G-00A EVALUATION BOARD

I

Board Number

MPS IC Number

EV2131-G-00A

MP2131GG

OUTPUT CURRENT (A)

40

45

50

55

60

65

70

75

80

85

90

95

100

0.01

0.1

1

10