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Product attributes Property Value
Manufacturer Monolithic Power Systems Inc.
Product Series
Packaging Tape & Reel (TR) |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 500V
Topology Boost, Buck, Buck-Boost, Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) 4.45V ~ 4.6V
Duty Cycle -
Frequency - Switching -
Power (Watts) 6 W
Fault Protection Open Loop, Over Load, Over Temperature, Over Voltage, Short Circuit, UVLO
Control Features Frequency Control, Soft Start
Operating Temperature -40°C ~ 125°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The MP157GS-P from Monolithic Power Systems is a versatile offline AC/DC regulator delivering up to 6 W with an integrated power switch rated to 500V breakdown. It supports Boost, Buck, Buck-Boost, and Flyback topologies, enabling both isolated and non-isolated designs. Built-in protections include open loop, over load, over temperature, over voltage, short circuit, and UVLO, with frequency control and soft start. Housed in an 8-SOIC package.

  • Integrated switch reduces external component count and simplifies layout.
  • Multi-topology flexibility (Boost, Buck, Buck-Boost, Flyback) supports diverse design needs.
  • 500V breakdown rating enables robust offline operation.
  • Comprehensive fault protection improves system reliability.
  • Wide -40°C to 125°C junction range suits demanding environments.

Compact Auxiliary Power Supplies

With 6 W output and a 500V breakdown rating, the MP157GS-P suits low-power auxiliary rails where an integrated switch reduces BOM count.

Isolated Flyback Bias Rails

The flyback topology option provides galvanic isolation for bias and housekeeping supplies in larger systems.

Non-Isolated Buck Regulation

Buck operation supports direct step-down regulation for control circuitry in space-constrained boards.

Buck-Boost and Boost Rails

Flexible topology support lets the same device address step-up or step-up/down requirements across platforms.

Harsh-Environment Electronics

A -40°C to 125°C junction temperature range supports reliable operation in demanding thermal environments.

Q: What switching topologies does the MP157GS-P support?
A: It supports Boost, Buck, Buck-Boost, and Flyback topologies, giving designers flexibility across isolated and non-isolated designs.
Q: Does it include an integrated power switch?
A: Yes, the power switch is integrated on-chip, simplifying the design and reducing external component count.
Q: What is the breakdown voltage rating?
A: The switch has a 500V breakdown voltage rating.
Q: What is the maximum output power?
A: It delivers up to 6 W.
Q: What protections are built in?
A: Open loop, over load, over temperature, over voltage, short circuit, and UVLO protection.
Base Product Number : MP157GS-P
500V 6 W 8-SOIC Boost Converter Buck Converter Buck-Boost Converter Flyback Converter Integrated Switch Isolated Offline AC/DC Regulator
Q: What switching topologies does the MP157GS-P support?
A: It supports Boost, Buck, Buck-Boost, and Flyback topologies, giving designers flexibility across isolated and non-isolated designs.
Q: Does it include an integrated power switch?
A: Yes, the power switch is integrated on-chip, simplifying the design and reducing external component count.
Q: What is the breakdown voltage rating?
A: The switch has a 500V breakdown voltage rating.
Q: What is the maximum output power?
A: It delivers up to 6 W.
Q: What protections are built in?
A: Open loop, over load, over temperature, over voltage, short circuit, and UVLO protection.