The ADP1864 is a compact, inexpensive, constant-frequency current-mode step-down DC-to-DC controller From old datasheet system Constant Frequency current-mode step-down DC/DC Controller in TSOT
The TC1070, TC1071, and TC1187 are adjustable LDOs designed to supersede a variety of older (bipolar) voltage regulators. Total supply current is typically 50A at full load, 20 to 60 times lower than in bipolar regulators! The devicesR 50mA, 100mA and 150mA adjustable CMOS LDOs with Shutdown (TC1071) adjustable CMOS LDOs with Shutdown