MP2263

Synchronous, Step-Down Converter with

External Soft Start and Power Good

in Small 2x3mm QFN Package

MP2263 Rev. 1.0

www.MonolithicPower.com

1

6/22/2016

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

© 2016 MPS. All Rights Reserved.

DESCRIPTION

The MP2263 is a frequency-programmable

(350kHz to 2.5MHz), synchronous, step-down,

switching regulator with integrated, internal,

high-side and low-side power MOSFETs. The

MP2263 provides 3A of highly efficient output

current with current-mode control for fast loop

response.

The wide 3.3V-to-30V input range accommodates

a variety of step-down applications. A 1

μA

shutdown mode quiescent current allows the

MP2263

to

be

used

in

battery-powered

applications.

High power conversion efficiency over a wide

load range is achieved by scaling down the

switching frequency at light-load condition to

reduce switching and gate driving losses.

An open-drain power good signal indicates the

output.

Frequency foldback helps prevent inductor

current

runaway

during

start-up.

Thermal

shutdown provides reliable and fault-tolerant

operation. High-duty cycle and low drop-out

mode

are

provided

for

battery-powered

systems.

The

MP2263

is

available

in

a

QFN-15

(2mmx3mm) package.

FEATURES

 Wide 3.3V to 30V Operating Voltage Range

 3A Continuous Output Current

 1μA Low Shutdown Supply Current

 12μA Sleep Mode Quiescent Current

 90mΩ/38mΩ High-Side/Low-Side R

Internal Power MOSFETs

 350kHz to 2.5MHz Programmable Switching

Frequency

 Power Good Output

 External Soft Start

 80ns Minimum On Time

 Selectable Forced PWM Mode and Auto

PFM/PWM Mode

 Low Dropout Mode

 Hiccup Over-Current Protection (OCP)

 Available in a QFN-15 (2mmx3mm)

Package

APPLICATIONS

 Battery-Powered Systems

 Smart Homes

 Wide Input Range Power Supplies

 Standby Power Supplies

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under Quality

Assurance.

“MPS” and “The Future of Analog IC Technology” are registered

trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MP2263

VIN

EN

VIN

FREQ

FB

BST

VOUT

SW

NC

VCC

BIAS

PG

SS

12V

MODE

C1

10μF×2

R3

165kΩ

C5

1μF

C3

12nF

C4

1μF

L1

4.7μH

C2

22μF×2

R1

1MΩ

R2

324kΩ

EN

PG

3.3V/3A

MODE

BIAS