MP1541

1.3MHz Boost Converter

MP1541 Rev.1.5

www.MonolithicPower.com

1

9/5/2017

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© 2017 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP1541 is a current mode step up

converter intended for small, low power

applications. The MP1541 switches at 1.3MHz

and allows the use of tiny, low cost capacitors

and inductors 2mm or less in height. Internal

soft start results in small inrush current and

extends battery life. The MP1541 operates from

an input voltage as low as 2.5V and can

generate 12V at up to 300mA from a 5V supply.

The MP1541 includes under-voltage lockout,

current limiting, and thermal overload protection

to prevent damage in the event of an output

overload. The MP1541 is available in a small

5-pin TSOT23 package or QFN-8 (2mmX2mm)

package.

FEATURES



On Board Power MOSFET



Uses Tiny Capacitors and Inductors



1.3MHz Fixed Switching Frequency



Internally Compensated



Internal Soft-Start



Operates with Input Voltage as Low as 2.5V

and Output Voltage as High as 22V



12V at 300mA from 5V Input



UVLO, Thermal Shutdown



Internal Current Limit



Available in a TSOT23-5 Package or QFN-8

(2mmX2mm) Package

APPLICATIONS



Camera Phone Flash



Handheld Computers and PDAs



Digital Still and Video Cameras



External Modems



Small LCD Displays



White LED Driver

All MPS parts are lead-free, halogen 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

100

95

90

85

80

75

70

65

60

55

50

0

75

150 225 300 375 450

LOAD CURRENT (mA)

MP1541-TAC-EC01

Efficiency vs Load Current

VIN = 3.3V

VIN = 5V

VOUT = 12V

VIN = 4.2V