Ultralow Power Step-Down Regulator with Input Voltage Monitor and Regulation

Micro PMU with 800 mA Buck, 300 mA LDO, Supervisory, Watchdog, and Manual Reset
Tiny 15V PMU with 6 CH DC/DCs and 2 LDOs for Multicell Lithium Ion Battery Applications
Ultralow Power Step-Down Regulator with Input Voltage Monitor and Regulation

2 A/1.2 A DC-to-DC Switching Regulator with Independent Positive and Negative Outputs