LM2676S-3.3 High Efficiency 3-A Step-Down Voltage Regulator

LM2676S-3.3 High Efficiency 3-A Step-Down Voltage Regulator

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 3-A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a .

Features

•1 New product available: LMR33630 36-V, 3-A, 400kHz synchronous converter
• Efficiency up to 94%
• Simple and easy to design with (using off-the-shelf external components)
• 150-mΩ DMOS output switch
• 3.3-V, 5-V, 12-V Fixed output and adjustable (1.2 V to 37 V) versions
• 50-µA Standby current when switched OFF
• ±2% Maximum output tolerance over full line and load conditions
• Wide input voltage range: 8 V to 40 V
• 260-KHz Fixed frequency internal oscillator
•
  –40 to 125°C Operating junction temperature range 2 Applications
• Communication module
• Electricity meter
• Calling button operat.