MP1474S
High-Efficiency, 2A, 16V, 500kHz
Synchronous, Step-Down Converter
MP1474S Rev.1.0 www.MonolithicPower.com 1
1/8/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP1474S is a high-frequency,
synchronous, rectified, step-down, switch-mode
converter with built-in power MOSFETs. It
offers a compact solution to achieve a 2A
continuous output current with excellent load
and line regulation over a wide input-supply
range. The MP1474S has synchronous-mode
operation for higher efficiency over the output
current-load range.
Current-mode operation provides fast, transient
response and eases loop stabilization.
Full protection features include over-current
protection (OCP) and thermal shutdown (TSD).
The MP1474S requires a minimal number of
readily available, standard, external
components and is available in a space-saving
8-pin TSOT23 package.
FEATURES
• Wide 4.5V to 16V Operating-Input Range
• 150m/70m Low R
DS(ON)
Internal Power
MOSFETs
• High-Efficiency Synchronous-Mode
Operation
• Fixed 500kHz Switching Frequency
• Synchronizes from a 300kHz to 2MHz
External Clock
• Power-Save Mode at Light Load
• Internal Soft-Start
• Power Good Indicator
• Over-Current Protection and Hiccup
• Thermal Shutdown
• Output Adjustable from 0.8V
• Available in a 8-pin TSOT-23 Package
APPLICATIONS
• Notebook Systems and I/O Power
• Digital Set-Top Boxes
• Flat-Panel Television and Monitors
• Distributed Power Systems
ll MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance. “MPS” and “The
Future of Analog IC Technology” are Registered Trademarks of Monolithi
Power Systems, Inc.
TYPICAL APPLICATION
LOAD CURRENT(A)
60
65
70
75
80
85
90
95
100
0 0.5 1 1.5 2 2.5
V
IN
=16V
V
IN
=12V
V
IN
=5V
