Linear Technology
Constant Frequency Step-Down DC/DC Controller with LDO Regulator
Linear Technology
Fast 2-Phase, No RSENSE™, Synchronous DC/DC Controller with Tracking/Sequencing
Linear Technology
2-Phase, Low Input Voltage, Dual Step-Down DC/DC Controller
TY Semiconductor
Silicon NPN Epitaxial Planar type
SANYO -> Panasonic
PNP/NPN Epitaxial Planar Silicon Transistor
Shindengen
POWER TRANSISTORS
Toshiba
TOSHIBA TRANSISTOR SILICON NPN EPITAXIAL TYPE (PCT PROCESS)