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MP171

700V Non-Isolated Regulator up to 60mA Output Current

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Description

MP171 is a primary-side regulator that provides accurate constant voltage (CV) regulation without an opto-coupler. It supports buck, boost, buck-boost, and flyback topologies. It has an integrated 700 V MOSFET to simplify the structure and reduce cost. These features make it an ideal regulator for offline low-power applications, such as home appliances and standby power. MP171 is a green-mode operation regulator. Both the peak current and switching frequency decrease as the load decreases. This feature provides excellent efficiency at light load and improves the overall average efficiency. MP171 has various protection features including thermal shutdown (TSD), VCC under-voltage lockout (UVLO), overload protection (OLP), short-circuit protection (SCP), and open-loop protection. MP171 is available in a small TSOT23-5 package and SOIC-8 package.

Features & Benefits

Primary-Side CV Control, Supporting Buck, Boost, Buck-Boost, and Flyback Topologies
Integrated 700 V MOSFET and Current Source
< 30 mW No-Load Power Consumption
Up to 2 W Output Power
Maximum DCM Output Current Less than 40 mA
Maximum CCM Output Current Less than 60 mA
Low VCC Operating Current
Frequency Foldback
Limited Maximum Frequency
Peak Current Compression
Internally Biased VCC
TSD, UVLO, OLP, SCP, Open-Loop Protection

Evaluation Tools

EV171-J-00A Evaluation Kit Small, Universal Input, Non-Isolated Off-Line Regulator, Evaluation Board for TSOT23-5 package type.

The EV171-J-00A Evaluation Board is designed to demonstrate the capabilities of MP171. The MP171 is a primary-side constant voltage regulator providing accurate constant voltage (CV) regulation without Opto-coupler. It supports Buck, Buck-Boost, Boost and Flyback topologies.

The EV171-J-00A Evaluation Board is designed as Buck application. EV171-J-00A typically drives 5V/50mA load from 85VAC to265VAC, at 60/50Hz.

The EV171-J-00A has an excellent efficiency and meets 2kV IEC61000-4-5 surge immunity and EN55022 conducted EMI requirements. MP171 features various protections, including thermal shutdown (TSD), VCC under-voltage lockout (UVLO), over-load protection (OLP), short- circuit protection (SCP), and open loop protection.

EV171-J-00A is the Evaluation Board for MP171 TSOT23-5 package type.

$25.00
+ tax

EV171-S-00A

Small, Universal Input, Non-Isolated Off-Line Regulator, Evaluation Board for SOIC-8 package type.

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