MP3213
700KHz/1.3MHz Boost Converter
with a 3.5A Switch
The Future of Analog IC Technology
DESCRIPTION
The MP3213 is a current mode step-up
converter with a 3.5A, 0.18Ω internal switch to
provide a highly efficient regulator with fast
response. The MP3213 operates at 700KHz or
1.3MHz allowing for easy filtering and low
noise. An external compensation pin gives the
user flexibility in setting loop dynamics, which
allows the use of small, low-ESR ceramic
output capacitors. Soft-start results in small
inrush current and can be programmed with an
external capacitor. The MP3213 operates from
an input voltage as low as 2.5V and can
generate 12V at up to 500mA from a 5V supply.
The MP3213 includes under-voltage lockout,
current limiting and thermal overload protection
to prevent damage in the event of an output
overload. The MP3213 is available in a low
profile 8-pin MSOP package with exposed pad.
FEATURES
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3.5A, 0.18Ω, 25V Power MOSFET
Uses Tiny Capacitors and Inductors
Pin Selectable 700KHz or 1.3MHz Fixed
Switching Frequency
Programmable Soft-Start
Operates with Input Voltage as Low as 2.5V
and Output Voltage as High as 22V
12V at 500mA from 5V Input
UVLO, Thermal Shutdown
Internal Current Limit
Available in an 8-Pin MSOP Package with
Exposed Pad
LCD Displays
Portable Applications
Handheld Computers and PDAs
Digital Still and Video Cameras
APPLICATIONS
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EVALUATION BOARD REFERENCE
Board Number
EV3213DH-00A
Dimensions
2.1”X x 2.1”Y x 0.5”Z
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
V
IN
5V
D1
V
OUT
12V
Efficiency vs
Load Current
100
95
90
EFFICIENCY (%)
6
7
OFF ON
3
8
IN
FSEL
EN
SS
5
SW
FB
2
85
80
75
70
65
60
55
50
1
V
IN
= 5V
V
OUT
= 12V
10
100
LOAD CURRENT (mA)
1000
MP3213
GND
4
COMP
1
C3
2.2nF
C4
10nF
MP3213 Rev. 1.1
5/12/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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