MP3213 Datasheet, PDF (1/10 Pages) Monolithic Power Systems – 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.
EVALUATION BOARD REFERENCE
Board Number
EV3213DH-00A
Dimensions
2.1”X x 2.1”Y x 0.5”Z
MP3213
700KHz/1.3MHz Boost Converter
with a 3.5A Switch
FEATURES
• 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
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
D1
V_IN
5V
OFF ON
6
5
7
IN
FSEL
SW
2
FB
3
EN
MP3213
8
SS
1
COMP
GND
4
C3
2.2nF
C4
10nF
V_OUT
12V
Efficiency vs
Load Current
100
95
90
85
80
75
70
65
60
V_IN = 5V
55
V_OUT = 12V
50
1
10
100
1000
LOAD CURRENT (mA)
MP3213 Rev. 1.1
www.MonolithicPower.com
1
5/12/2006
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© 2006 MPS. All Rights Reserved.