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| MP1497 Datasheet, PDF (1/15 Pages) Monolithic Power Systems – High-Efficiency, 3A, 16V, 500kHz Synchronous, Step-Down Converter | |||
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The Future of Analog IC Technology
DESCRIPTION
The MP1497 is a high-frequency, synchronous,
rectified, step-down switch mode converter with
built in internal power MOSFETs. It offers a
very compact solution to achieve 3A continuous
output current with excellent load and line
regulation over a wide input supply range. The
MP1497 has synchronous mode operation for
higher efficiency over the output current load
range.
Current-mode operation provides a fast
transient response and eases loop stabilization.
Protective features include over-current
protection, thermal shutdown, and external SS
control.
The MP1497 requires a minimal number of
readily-available external components and is
available in a space-saving 8-pin TSOT23
package.
MP1497
High-Efficiency, 3A, 16V, 500kHz
Synchronous, Step-Down Converter
FEATURES
⢠Wide 4.5V-to-16V Operating Input Range
⢠80mâ¦/30m⦠Low RDS(ON) Internal Power
MOSFETs
⢠Proprietary Switching-LossâReduction
Technique
⢠High-Efficiency Synchronous Mode
Operation
⢠Fixed 500kHz Switching Frequency
⢠Can Synchronize to a 200kHz-to-2MHz
External Clock
⢠Externally-Programmable Soft-Start
⢠OCP and Hiccup
⢠Thermal Shutdown
⢠Output Adjustable from 0.8V
⢠Available in an 8-pin TSOT-23 Package
APPLICATIONS
⢠Notebook Systems and I/O Power
⢠Digital Set-Top Boxes
⢠Flat-Panel Televisions and Monitors
⢠Distributed Power Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
âMPSâ and âThe Future of Analog IC Technologyâ are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN
4.5V-16V C1
22
EN
2
IN
5
BST
MP1497
6 EN/SYNC
3
SW
7
VCC
8
C3
FB
0.1
1
SS GND
C5
4
22
C4
L1
R1
R3
40.2k
33k
3.3V/3A
C2
R2
13k
MP1497 Rev. 1.05
www.MonolithicPower.com
1
12/26/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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