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LM2670S-3.3 Datasheet High Efficiency 3-a Step-down Voltage Regulator

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM2670 SNVS036K – APRIL 2000 – REVISED JUNE 2016 LM2670 SIMPLE SWITCHER® High Efficiency 3-A Step-Down Voltage Regulator With Sync.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The LM2670 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 low ONresistance DMOS power switch.

The series consists of fixed output voltages of 3.3-V, 5-V, and 12-V output version.

Key Features

  • 1 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.
  • External Sync Clock Capability (280 kHz to 400 kHz).
  • 260-kHz Fixed Frequency.

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