具有温度补偿 DCR 感应评估模块的 LM27403 同步降压控制器 LM27403EVM (正在供货)
The LM27403 EVM is a 300-kHz, high efficiency, synchronous buck converter with voltage-mode control and inductor DCR current sensing for overcurrent protection. An inexpensive 2N3904 BJT is used to sense temperature at the inductor. This enables correction for the inductor DCR’s variation over temperature as well as provide a thermal shutdown function based on a desired temperature setpoint.
- 25A output current
- 3V to 20V input voltage range
- Switching frequency 250kHz
- High efficiency, 91%, 1.2V 25A
- DCR current sensing with temperature compensation