GENERAL DESCRIPTION
The TC170 brings low-power CMOS technology to the current-mode-switching power supply controller market. Maximum supply current is 3.8 mA. Bipolar current-mode control integrated circuits require five times more operating current.
The dual totem-pole CMOS outputs drive power MOSFETs or bipolar transistors. The 50nsec typical output rise and fall times (1000pF capacitive loads) minimize MOSFET power dissipation. Output peak current is 300mA.

FEATURES
■ Low Supply Current With
   CMOS Technology ................................. 3.8mA Max
■ Internal Reference .............................................5.1V
■ Fast Rise/Fall Times (CL = 1000pF) ............. 50nsec
■ Dual Push-Pull Outputs
■ Direct-Power MOSFET Drive
■ High Totem-Pole Output Drive .................... 300mA
■ Differential Current-Sense Amplifier
■ Programmable Current Limit
■ Soft-Start Operation
■ Double-Pulse Suppression
■ Undervoltage Lockout
■ Wide Supply Voltage Operation ............... 8V to16V
■ High Frequency Operation ..........................200kHz
■ Available with Low OFF State Outputs
■ Low Power, Pin-Compatible Replacement for UC3846