MP3213
700KHz/1.3MHz Boost Converter
with a 3.5A Switch
MP3213 Rev. 1.1 www.MonolithicPower.com 1
5/12/2006 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP3213 is a current mode step-up
converter with a 3.5A, 0.18 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.
EVALUATION BOARD REFERENCE
Board Number Dimensions
EV3213DH-00A 2.1”X x 2.1”Y x 0.5”Z
FEATURES
• 3.5A, 0.18, 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
APPLICATIONS
• LCD Displays
• Portable Applications
• Handheld Computers and PDAs
• Digital Still and Video Cameras
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
V
IN
5V
V
OUT
12V
MP3213
SWIN
FB
COMPSS
GND
EN
FSEL
65
2
1
4
8
3
7
OFF ON
D1
C4
10nF
C3
2.2nF
Efficiency vs
Load Current
100
95
90
85
80
75
70
65
60
55
50
EFFICIENCY (%)
LOAD CURRENT (mA)
1 10 100 1000
V
IN
= 5V
V
OUT
= 12V
