Ultralow Power Step-Down Regulator with Input Voltage Monitor and Regulation
Dual Buck Regulators and Two LDO Regulators 2.5V to 5.5V 24-Pin LFCSP EP T/R

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