DESCRIPTION

HM2743 is a non-isolated regulator. Internal integration 650V MOSFET. Its application peripherals are simple, and it is suitable for low-power power supply applications. Provides a low-cost, high-efficiency solution. HM2743 is also a voltage regulator with power saving mode. Be negative When the load drops, the peak current and switching frequency decrease accordingly. So in light The system can still maintain high efficiency while loading. At the same time, it is also integrated internally, Undervoltage lockout, over temperature protection, overload protection, short circuit protection, environmental protection Protection and other functions. HM2743 supports including boost, buck-boost, flyback, etc. Multiple topologies.

Features

● Maximum output power 5W

● Built-in 650V/10Ω MOS tube

● No-load power consumption <100mW

● Built-in thermal protection automatic recovery function

● Maximum frequency 70kHz

● Built-in high voltage start

● Built-in overload protection, short circuit protection function

● Internal integrated open loop protection, over temperature protection

● Internally integrated BP under-voltage lockout and over-voltage protection functions