概览
优势和特点
- Complete single-phase point-of-load (POL) solution.
- 90% full load efficiency from 12VIN to 1VOUT at 10A.
- PMBus telemetry of output current, reference voltage, input voltage, and junction temperature.
产品详情
The EVAL-LTM4739-AZ evaluation board features the LTM®4739: a complete, high efficiency, high power-density, single 10A DC-to-DC step-down power μModule® (micromodule) regulator with PMBus interface. The LTM4739 is available in a 49-lead 6.25mm × 6.25mm × 5.07mm Ball grid array (BGA) package. Read the LTM4739 data sheet before using or making any hardware changes to the EVAL-LTM4739-AZ evaluation board.
The EVAL-LTM4739-AZ input voltage range is 3V to 15V, and the output voltage range is 0.4V to 5.5V. The maximum load current is 10A. The output voltage is adjusted through the feedback resistor divider or the PMBus VOUT_COMMAND (the factory default output voltage is 1V). The switching frequency range is 500kHz to 2MHz (factory default frequency is 500kHz), configured through the pin-strap resistor at the PGM1 or with PMBus commands. The resistor value at the PGM1 pin is also used to adjust the control loop compensation parameters. The resistor value at the PGM0 pin is used to configure the positive overcurrent (POC) protection triggering level and the factory default PMBus address (0x39h). The factory default POC protection sets the peak inductor current limit to 15A. At a high ambient temperature, the current output may need to be derated (Refer to the LTM4739 data sheet for more details).
相关产品
使用入门
Required Equipment
- Power supply.
- Load such as an electronic load.
- Analog multimeter and/or digital multimeter (AMM/DMM).
- DC1613A USB-to-I2C dongle.