MP3217 Datasheet, PDF (1/10 Pages) Monolithic Power Systems – 36V, 670kHz Step-up Converter with a 0.5A Switch

The Future of Analog IC Technology
DESCRIPTION
The MP3217 is a monolithic step up converter
integrating a 0.5A, 0.6Ω internal switch. The
MP3217 uses current mode, fixed frequency
architecture to regulate the output voltage,
providing fast transient response and cycle by
cycle current limit.
The MP3217 includes under-voltage lockout, over
voltage protection and thermal overload
protection preventing damage in the event of an
output overload.
The MP3217 is available in small 6-pin TSOT23
package.
MP3217
36V, 670kHz Step-up Converter
with a 0.5A Switch
FEATURES
• Internal 0.6Ω Power MOSFET
• Up to 36V Output Voltage
• 670kHz Fixed Switching Frequency
• 42V Over Voltage Shutdown
• Cycle-by-Cycle Over Current Protection
• UVLO, Thermal Shutdown
• Available in TSOT23-6 Packages
APPLICATIONS
• APD Bias Generation
• Portable Applications
• Handheld Computers and PDAs
• Digital Still Cameras
“Monolithic Power Systems”, “MPS”, and “The Future of Analog IC Technology”
are Registered Trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
V_IN=5V
D1
B0540
V_OUT=33V
ENABLE
IN
SW
MP3217
EN
FB
GND
PGND
Efficiency vs.
Output Current
90
80
70
60
50
40
0 2 4 6 8 10 12 14 16 18 20
OUTPUT CURRENT (mA)
MP3217 Rev. 0.91
www.MonolithicPower.com
1
10/15/2009
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