MP173GJ-P Datasheet, PDF (1/20 Pages) MPS Industries, Inc. – 700 V Non-Isolated Off-Line Regulator Up to 280 mA Output Current

The Future of Analog IC Technology
MP173
700 V Non-Isolated Off-Line Regulator
Up to 280 mA Output Current
DESCRIPTION
MP173 is a primary-side regulator that provides
accurate constant voltage (CV) regulation
without an opto-coupler. It supports buck, boost,
buck-boost, and flyback topologies. It has an
integrated 700 V MOSFET to simplify the
structure and reduce cost. These features make
it an ideal regulator for offline, low-power
applications, such as home appliances and
standby power.
MP173 is a green-mode-operation regulator.
Both the peak current and switching frequency
decrease as the load decreases. This feature
provides excellent efficiency at light load and
improves the overall average efficiency.
MP173 has various protection features
including thermal shutdown (TSD), VCC under-
voltage lockout (UVLO), overload protection
(OLP), short-circuit protection (SCP), and open-
loop protection.
MP173 is available in a small TSOT23-5
package and SOIC-8 package.
FEATURES
 Primary-Side CV Control, Supporting Buck,
Boost, Buck-Boost, and Flyback Topologies
 Integrated 700 V MOSFET and Current
Source
 < 30 mW No-Load Power Consumption
 Up to 4 W Output Power
 Maximum DCM Output Current Less than
180 mA
 Maximum CCM Output Current Less than
280 mA
 Low VCC Operating Current
 Frequency Foldback
 Limited Maximum Frequency
 Peak-Current Compression
 Internally Biased VCC
 TSD, UVLO, OLP, SCP, Open-Loop
Protection
APPLICATIONS
 Home Appliances, White Goods, and
Consumer Electronics
 Industrial Controls
 Standby Power
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality Assurance. “MPS”
and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
L
Input C1
N
DRAIN
VCC
C2 _R1
MP173 ^FB
R2
SOURCE
SOURCE
D2
C3
L1
D1
C4
VOUT
GND
MP173 Rev. 1.0
www.MonolithicPower.com
1
8/19/2015
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