MC34166, MC33166 Datasheet - ON Semiconductor

MC34166 Step-Up/Down/Inverting Switching Regulators

DATA SHEET www.onsemi.com Inverting Switching Regulators - Step-Up/Down 3.0 A MC34166, MC33166 The MC34166, MC33166 series are high performance fixed frequency power switching regulators that contain the primary functions required for dc to dc converters. This series was specifically designed to be incorporated in step down and voltage inverting configurations with a minimum number of external components and can also be used cost effectively in step up .

MC34166 Features

* consist of cycle

* by

* cycle current limiting, undervoltage lockout, and thermal shutdown. Also included is a low power standby mode that reduces power supply current to 36 mA. Features

* Output Switch Current in Excess of 3.0 A

* Fixed Frequency Oscillator (72 kHz) w

MC33166_ONSemiconductor.pdf