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MP1541_06 Datasheet, PDF (1/8 Pages) Monolithic Power Systems – 1.3MHz Boost Converter | |||
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The Future of Analog IC Technology
DESCRIPTION
The MP1541 is a 5-pin thin SOT23 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 200mA 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.
MP1541
1.3MHz Boost Converter
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 200mA from 5V Input
 UVLO, Thermal Shutdown
 Internal Current Limit
 Available in a TSOT23-5 Package
APPLICATIONS
 Camera Phone Flash
 Handheld Computers and PDAs
 Digital Still and Video Cameras
 External Modems
 Small LCD Displays
 White LED Driver
âMPSâ and âThe Future of Analog IC Technologyâ are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
D1
VIN
5V
OFF ON
5
1
4 IN
SW
EN
MP1541
2 GND
FB 3
VOUT
12V
200mA
MP1541-TAC01
Efficiency vs Load Current
100
95
VIN = 5V
90
85
80
75
VIN = 3.3V
VIN = 4.2V
70
65
60
55
VOUT = 12V
50
0 75 150 225 300 375 450
LOAD CURRENT (mA)
MP1541-TAC-EC01
MP1541Rev.1.3
www.MonolithicPower.com
1
3/20/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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