MP172A 700V, Non-Isolated, Offline Regulator, Up to 120mA Output Current with Improved EMI Performance DESCRIPTION FEATURES The MP172A is a primary-side regulator that Primary-Side CV Control provides accurate constant voltage (CV) Supports Buck, Boost, Buck-Boost, and regulation without an optocoupler. It supports Flyback Topologies buck, boost, buck-boost, and flyback Integrated 700V MOSFET and Current topologies. Source Under 30mW No-Load Power Consumption The devices integrated 700V MOSFET Up to 3W Output Power simplifies the structure and reduces cost. This Maximum DCM Output Current below feature optimizes the device for offline, low- 80mA power applications such as home appliances and standby power. Maximum CCM Output Current below 120mA The MP172A is a green-mode operation Low VCC Operating Current regulator. Both the peak current and switching Frequency Foldback frequency lower as the load decreases. This Limited Maximum Frequency feature provides excellent efficiency at light load, Peak Current Compression and improves the overall average efficiency. Internally Biased VCC Protection features include thermal shutdown TSD, UVLO, OLP, SCP, and Open-Loop (TSD), VCC under-voltage lockout (UVLO), Detection overload protection (OLP), short-circuit Available in TSOT23-5 and SOIC-8 protection (SCP), and open-loop detection. Packages The MP172A is available in TSOT23-5 and APPLICATIONS SOIC-8 packages. 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, the MPS logo, and Simple, Easy Solutions are registered trademarks of Monolithic Power Systems, Inc. or its subsidiaries. TYPICAL APPLICATION D2 DRAIN VCC L C2 R1 FB MP172A MP172 C3 R2 L1 SOURCE SOURCE VOUT Input C1 D1 C4 N GND MP172A Rev. 1.0 www.MonolithicPower.com 1 11/22/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. MP172A NON-ISOLATED, OFFLINE REGULATOR ORDERING INFORMATION Part Number Package Top Marking MSL Rating MP172AGJ* See Below TSOT23-5 1 MP172AGS** See Below SOIC-8 2 * For Tape & Reel, add suffix Z (e.g. MP172AGJZ). ** For Tape & Reel, add suffix Z (e.g. MP172AGSZ). TOP MARKING (MP172AGJ) BMV: Product code Y: Year code TOP MARKING (MP172AGS) MP172A: Part number LLLLLLLL: Lot number MPS: MPS prefix Y: Year code WW: Week code MP172A Rev. 1.0 www.MonolithicPower.com 2 11/22/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved.