MP1497SGJ-P Datasheet, PDF (1/15 Pages) MPS Industries, Inc. – High-Efficiency, 3A, 16V, 500kHz Synchronous, Step-Down Converter

The Future of Analog IC Technology
DESCRIPTION
The MP1497S 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 MP1497S 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 MP1497S requires a minimal number of
readily-available external components and is
available in a space-saving 8-pin TSOT23
package.
MP1497S
High-Efficiency, 3A, 16V, 500kHz
Synchronous, Step-Down Converter
FEATURES
 Wide 4.5V-to-16V Operating Input Range
 120mΩ/50mΩ Low R_DS(ON) Internal Power
MOSFETs
 Proprietary Switching-Loss–Reduction
Technique
 High-Efficiency Synchronous Mode
Operation
 Fixed 500kHz Switching Frequency
 Can Synchronize to a 300kHz-to-2MHz
External Clock
 Externally-Programmable Soft-Start
 OCP and Hiccup
 Thermal Shutdown
 Output Adjustable from 0.8V
 Available in an 8-pin TSOT23 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.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN
4.5V-16V _C1
22
EN
C6
0.1
C5
22nF
IN
BST
MP1497S
EN/SYNC
SW
VCC
FB
SS _GND
C4
L1
R9
33k
R1
40.2k
R2
13k
3.3V/3A
C2
MP1497S Rev. 1.01
www.MonolithicPower.com
1
9/7/2015
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
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