LP8725数据手册集成电路（IC）的特殊用途稳压器规格书PDF

描述 Description

This device is a multi-function programmable Power Management Unit (PMU), optimized for sub block power solutions. This device integrates two highly efficient 600-mA step-down DC-DC converters configurable up to 800-mA load with Dynamic Voltage Scaling (DVS) via the serial interface, two low-noise analog LDOs, three digital LDOs for up to 300 mA load current each, two Low-Input Low-Output (LILO) regulators, and an I2C-compatible serial interface to allow a host controller access to the internal control registers. The device also features programmable power-on sequencing. LDO regulators provide high PSRR and low noise ideally suited for supplying power to both analog and digital loads.
The device can be configured either as a Sub_PMU for modules (for example, camera or multimedia modules) or as a stand-alone PMU that powers the processor itself.

特性 Features

• Two High-Efficiency Step-Down DC-DC Converters, IOUT = 600 mA, With a 4-MHz Switching Frequency Using Small 1-µH Inductors, With Options up to 800 mA
• Three Digital LDOs for up to 300-mA Load Current Each
• Two Low-Noise Analog 300-mA LDOs
• Two Low-Input Low-Output Regulators, IOUT = 300 mA
• I2C-Compatible Interface for Control of Internal Registers
• Adjustable Startup Sequence Through Serial Interface or Configuration
• Thermal Shutdown Protection