The LM2676 series of regulators are monolithic integrated circuits which provide all of the active functions for a step down (buck) switching regulator capable of driving up to 3A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance DMOS power switch. The series consists of fixed output voltages of 3.3V, 5V and 12V and an adjustable
output version.
Features
Efficiency up to 94%
Simple and easy to design with (using off-the-shelf external components)
150 mΩDMOS output switch
3.3V, 5V and 12V fixed output and adjustable (1.2V to 37V ) versions
50µA standby current when switched OFF
±2%maximum output tolerance over full line and load conditions
Wide input voltage range: 8V to 40V
260 KHz fixed frequency internal oscillator
−40 to +125˚C operating junction temperature range
