MP172 700 V Non-Isolated Off-Line Regulator Up to 120 mA Output Current NOT RECOMMENDED FOR NEW DESIGNS. REFER TO MP172A DESCRIPTION FEATURES Primary-Side CV Control, Supporting Buck, MP172 is a primary-side regulator that provides Boost, Buck-Boost, and Flyback Topologies accurate constant voltage (CV) regulation Integrated 700 V MOSFET and Current without an opto-coupler. It supports buck, boost, Source buck-boost, and flyback topologies. It has an < 30 mW No-Load Power Consumption integrated 700 V MOSFET to simplify the structure and reduce costs. These features Up to 3 W Output Power make it an ideal regulator for off-line, low-power Maximum DCM Output Current Less than applications, such as home appliances and 80 mA standby power. Maximum CCM Output Current Less than 120 mA MP172 is a green-mode-operation regulator. Low VCC Operating Current Both the peak current and the switching Frequency Foldback frequency decrease as the load decreases. Limited Maximum Frequency This feature provides excellent efficiency at light Peak-Current Compression load and improves the overall average Internally Biased VCC efficiency. TSD, UVLO, OLP, SCP, Open-Loop MP172 has various protection features Protection including thermal shutdown (TSD), VCC under- voltage lockout (UVLO), overload protection APPLICATIONS (OLP), short-circuit protection (SCP), and open- Home Appliances, White Goods, and loop protection. Consumer Electronics MP172 is available in a small TSOT23-5 Industrial Controls package and SOIC-8 package. 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 D2 DRAIN VCC L C2 R1 FB C3 MP172 R2 L1 SOURCE SOURCE VOUT Input C1 D1 C4 N GND MP172 Rev. 1.01 www.MonolithicPower.com 1 9/17/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2021 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP172AMP172 NON-ISOLATED OFF-LINE REGULATOR NOT RECOMMENDED FOR NEW DESIGNS. REFER TO MP172A ORDERING INFORMATION Part Number Package Top Marking MP172GJ* TSOT23-5 See Below MP172GS** SOIC-8 See Below * For Tape & Reel, add suffix Z (e.g. MP172GJZ). ** For Tape & Reel, add suffix Z (e.g. MP172GSZ). TOP MARKING (TSOT23-5) APK: product code of MP172GJ Y: year code TOP MARKING (SOIC-8) MP172: part number LLLLLLLL: lot number MPS: MPS prefix: Y: year code WW: week code: PACKAGE REFERENCE TOP VIEW TOP VIEW NC VCC 1 8 FB DRAIN 2 7 3 NC SOURCE 6 SOURCE 4 5 NC TSOT23-5 SOIC-8 MP172 Rev. 1.01 www.MonolithicPower.com 2 9/17/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2021 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP172A