Power chip

The D2577 is designed to provide all power and control functions for boost, flyback and forward converter switching regulators. Three different output voltage versions are available: 12V, 15V and ADJ. There are few external components, and the chip has a built-in 3.0A NPN power switch tube and related protection circuits, including current and thermal limiting and undervoltage lockout. A built-in 52kHz fixed frequency oscillator requires no external components, soft-start mode to reduce inrush current during start-up, and current-mode control to improve input voltage and output load transient immunity. The input voltage range is 3.5V~40V. This circuit is an ADJ adjustable version output.

LM1085 3A Fixed/Adjustable Output Linear Regulator

1A Dual Output Low Dropout Voltage Regulator 28-HTSSOP -40 to 125

Power module isolated single-channel regulated output; input voltage: 24VDC; output voltage: 5VDC; output current (maximum value): 400mA; output power: 2W; isolation voltage 1500VDC

5V/100mA PFM Asynchronous Step-up Converter

DC-DC module, input range: 4.5V~5.5V, dual output: ±15V/1W