MP156
Small, Energy-Efficient, Off-line Regulator
30mW No-Load Power Consumption
The Future of Analog IC Technology
DESCRIPTION
MP156 is a primary-side regulator that provides
accurate constant voltage (CV) regulation
without opto-coupler, support Buck, Buck-Boost,
Boost and Flyback topologies. It has an
integrated 500V MOSFET to simplify the
structure and reduce costs. These features
make it a competitive candidate for off-line low
power applications, such as home appliances
and standby power.
MP156 is a green-mode-operation regulator.
Both its the peak current and the switching
frequency decrease as the load decreases to
provide excellent efficiency at light load, thus
improving the overall average efficiency.
MP156 features various protections, including
thermal shutdown (TSD), VCC under-voltage
lockout (UVLO), overload protection (OLP),
short-circuit protection (SCP), and open loop
protection.
MP156 is available in the TSOT23-5 and
SOIC8 packages.
FEATURES
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Primary-side constant voltage (CV) control,
supporting Buck, Buck-Boost, Boost and
Flyback topologies
Integrated 500V/20Ω MOSFET
<30mW no-load power consumption
Up to 4W output power
Maximum DCM output current less than
130mA
Maximum CCM output current less than
220mA
Low VCC Operating Current
Frequency foldback
Limited maximum frequency
Peak-current compression
Internal high-voltage current source
Internal 350ns leading-edge blanking
Thermal shutdown (auto restart)
VCC under voltage lockout with hysteresis
Timer based over-load protection.
Short-circuit protection
Open-loop protection
Home appliances, white goods and
consumer electronics
Industrial controls
Standby power
APPLICATIONS
All 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 Monolithic Power
Systems, Inc.
TYPICAL APPLICATION
MP156 Rev. 1.15
4/21/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
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