MP1541
1.3MHz Boost Converter
MP1541 Rev.1.5 www.MonolithicPower.com 1
9/5/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 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
ll MPS parts are lead-free, halogen free, and adhere to the RoHS directive. Fo
MPS green status, please visit MPS website under Quality Assurance. “MPS”
and “The Future of Analog IC Technology” are Registered Trademarks o
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
100
95
90
85
80
75
70
65
60
55
50
EFFICIENCY (%)
0 75 150 225 300 375 450
LOAD CURRENT (mA)
MP1541-TAC-EC01
Efficiency vs Load Current
V
IN
= 3.3V
V
IN
= 5V
V
OUT
= 12V
V
IN
= 4.2V
