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Product attributes Property Value
Manufacturer Monolithic Power Systems Inc.
Product Series
Packaging Tape & Reel (TR) |
Output Isolation Non-Isolated
Internal Switch(s) Yes
Voltage - Breakdown 500V
Topology Boost, Buck, Buck-Boost, Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) 5.3V ~ 5.6V
Duty Cycle -
Frequency - Switching -
Power (Watts) 4 W
Fault Protection Open Loop, Over Load, Over Temperature, Short Circuit
Control Features -
Operating Temperature -40°C ~ 125°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SOT-23-5 Thin, TSOT-23-5
Supplier Device Package TSOT-23-5
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MP156GJ-P from Monolithic Power Systems is a non-isolated offline converter with an integrated switch, supporting boost, buck, buck-boost, and flyback topologies. It delivers up to 4W with a 500V breakdown rating and operates from a 5.3V to 5.6V Vcc supply. Packaged in a thin TSOT-23-5, it includes open loop, over load, over temperature, and short circuit protection across a -40°C to 125°C range.

  • Integrated switch reduces external component count in non-isolated offline designs.
  • Flexible support for boost, buck, buck-boost, and flyback topologies.
  • 500V breakdown rating provides margin for mains-connected operation.
  • Open loop, over load, over temperature, and short circuit protection enhance safety.
  • Compact TSOT-23-5 package suits space-constrained 4W designs.

Small Non-Isolated Offline Supplies

The MP156GJ-P delivers up to 4W in a non-isolated offline converter with an integrated switch, making it suitable for compact bias and housekeeping supplies. Its 500V breakdown rating provides margin for mains-connected operation.

Buck and Buck-Boost Auxiliary Rails

Supporting buck, boost, buck-boost, and flyback topologies, this device offers design flexibility for direct-coupled auxiliary rails in appliances and metering equipment.

Smart Home and IoT Power

The TSOT-23-5 package and 5.3V to 5.6V Vcc supply enable compact non-isolated power stages for smart home devices and sensors connected to the mains.

Industrial Control Bias Supplies

With a -40°C to 125°C operating range and open loop, over load, over temperature, and short circuit protection, the MP156GJ-P supports reliable non-isolated bias supplies in industrial controls.

Q: What topologies does the MP156GJ-P support?
A: It supports boost, buck, buck-boost, and flyback topologies.
Q: Is it isolated?
A: No. The MP156GJ-P is a non-isolated offline converter.
Q: Does it have an integrated switch?
A: Yes. The power switch is integrated on-chip.
Q: What is the breakdown voltage?
A: The device has a 500V breakdown rating.
Q: What is the Vcc supply range?
A: The Vcc supply operates from 5.3V to 5.6V.
Q: What protections are included?
A: Open loop, over load, over temperature, and short circuit protection.
Base Product Number : MP156GJ-P
4W 500V Boost Converter Buck Converter Buck-Boost Flyback Integrated Switch MPS Non-Isolated Offline AC-DC TSOT-23-5
Q: What topologies does the MP156GJ-P support?
A: It supports boost, buck, buck-boost, and flyback topologies.
Q: Is it isolated?
A: No. The MP156GJ-P is a non-isolated offline converter.
Q: Does it have an integrated switch?
A: Yes. The power switch is integrated on-chip.
Q: What is the breakdown voltage?
A: The device has a 500V breakdown rating.
Q: What is the Vcc supply range?
A: The Vcc supply operates from 5.3V to 5.6V.
Q: What protections are included?
A: Open loop, over load, over temperature, and short circuit protection.