LP3907SQ-JXQX/NOPB

专业电源管理 PMIC LP3907 Dual 1A and 600mA Buck Converters and Dual 300mA LDOs with I2C Interface 24-WQFN -40 to 85

The LP3907 is a multi-function, programmable power management unit PMU optimized for low-power FPGAs, microprocessors, and DSPs. This device integrates two highly efficient 1-A, 600-mA step-down DC-DC converters with dynamic voltage scaling DVS, two 300-mA linear regulators, and a 400-kHz I2C interface to allow a host controller access to the internal control registers of the device. The LP3907 additionally features programmable power-on sequencing.

Features include programmable power-on sequencing, communication control I2C, dynamic voltage scaling, overcurrent protection, Power Good, synchronous rectification, thermal shutdown, and undervoltage lockout. For applications requiring light loads, the high-efficiency synchronous switching buck regulators enter PFM mode and operate with reduced switching frequency and supply current to maintain high efficiency at very light loads.