3.3V & 5V Regulator to Run Computer & RS232

Posted on May 23, 2012

The circuit consists of two sections, one being a DC/DC converter and the other being a pair of dual N-channel MOSFETs and their associated high-side drivers that effectively form a DPDT switch.

Many portable microprocessor-based systems use a mix of 3.3V and 5V circuits. Some are still using only 5V and inevitably some systems will end up being solely 3.3V based. If accessories are to be plugged into, or connected to any of these systems, a

Leave Comment

characters left:

New Circuits



Popular Circuits

PC Infrared Receiver
Fuzz Face
Two-phase ac motor driver
Suppressed zero meter
13.8Vdc 2A Regulated Power Supply Circuit
White led driver
nicd battery charger using common electronic components
Audio Oscillator
Infrared Toggle Switch schematic diagram
Tupperware Turret Airsoft Gun Circuit