
The MP155 is a primary-side regulator that provides accurate constant voltage regulation without the opto-coupler, and supports buck, buck-boost, and flyback topologies. An integrated 500V MOSFET simplifies the structure and reduces costs. These features make it a competitive candidate for off-line low-power applications, such as home appliances and standby power. The MP155 is a green-mode operation regulator. Both the peak current and the switching frequency decrease as the load decreases. As a result, it offers excellent efficiency performance at light load, thus improving the overall average efficiency. The MP155 features various protections such as thermal shutdown (TSD), VCC under-voltage lockout (UVLO), overload protection (OLP), short-circuit protection (SCP), and open loop protection. The MP155 is available in the TSOT23-5 and SOIC8 packages.
YG GROUP supports reliable sourcing through quality controls and compliance documentation. Please confirm product requirements, applicable certifications and supporting documents before ordering.
MP155 is an authentic electronic component manufactured by Monolithic Power Systems, categorized under Power Management ICs. It is supplied in the standard manufacturer-specified package footprint, providing industry-standard mechanical dimensions and terminal configurations for board-level assembly. Full pinout configurations, physical footprint drawings, and rated operating tolerances are documented in the official MP155 datasheet above.
Electronic component spot-market pricing for MP155 fluctuates based on real-time global availability, production date codes, minimum order quantities (MOQ), and packaging formats (e.g., Reel, Tube, Tray). Using an RFQ ensures you receive accurate, real-time volume pricing tied to verified, traceable inventory rather than stale catalog estimates.
Lead times for MP155 depend on whether stock is dispatched from our central hub or regional franchise partners. Ready-to-ship inventory typically leaves the warehouse within 1–3 business days following quality inspection, while factory-direct or back-ordered allocations are confirmed with an estimated ship date upon RFQ reply.
Loading articles…
Loading articles…

Assess LSM6DSV16XTR for robot motion sensing with conditional noise and current figures, OIS range restrictions, FIFO transport calculations and sample-age checks. Compare four related ST sensors without assuming certification or production adoption.
Read more →
Evaluate BTS5030-2EKA for two 12V body-load branches. Review shared thermal loss, lamp inrush, multiplexed diagnosis and the revised 2185 sense ratio without confusing EV forecasts with exact-part demand.
Read more →
Assess what TI's fab expansion means for a TLC555CDR design. Compare exact ordering status, timer behavior and RC tolerance before changing an approved BOM or relying on a delivery promise.
Read more →
Evaluate a DG411AK/883 offer against the circuit it must serve. Compare temperature-dependent leakage, switching behavior, package identity and four nearby models before choosing replenishment or a redesign.
Read more →Loading related products…
| Picture | Part Number | Manufacturer | PDF / RoHS | Stock | Action |
|---|---|---|---|---|---|
![]() | Monolithic Power Systems | 1,260 | |||
![]() | Monolithic Power Systems | 7,700 | |||
![]() | Monolithic Power Systems | 4,860 | |||
![]() | Monolithic Power Systems | -- | 4,850 | ||
![]() | Monolithic Power Systems | -- | 5,940 | ||
![]() | Monolithic Power Systems | -- | 8,550 | ||
![]() | Monolithic Power Systems | -- | 2,660 | ||
![]() | Monolithic Power Systems | 7,740 | |||
![]() | Monolithic Power Systems | 3,880 | |||
![]() | Monolithic Power Systems | 5,970 |