50 mA/500 mA, Ultralow Power Step-Down Regulator with Battery Voltage Monitor

Micro PMU with 800 mA Buck, 300 mA LDO, Supervisory, Watchdog, and Manual Reset
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