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LM3670 Datasheet Miniature Step-down DC-dc Converter

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & munity LM3670 SNVS250F – NOVEMBER 2004 – REVISED FEBRUARY 2016 LM3670 Miniature Step-Down DC-DC Converter for Ultralow Voltage Circuits.

General Description

The LM3670 step-down DC-DC converter is optimized for powering ultralow voltage circuits from a single Li-Ion cell or three-cell NiMH/NiCd batteries.

It provides up to 350-mA load current, over an input voltage range from 2.5 V to 5.5 V.

There are several different fixed voltage output options available as well as an adjustable output voltage version.

Key Features

  • 1 Input Voltage Range: 2.5 V to 5.5 V.
  • Adjustable Output Voltages (VOUT): 0.7 V to 2.5 V.
  • Fixed Output Voltages: 1.2 V, 1.5 V, 1.6 V, 1.8 V, 1.875 V, 3.3V.
  • 15-µA Typical Quiescent Current.
  • 350-mA Maximum Load Capability.
  • 1-MHz PWM Fixed Switching Frequency (Typical).
  • Automatic PFM and PWM Mode Switching.
  • Low Dropout Operation.
  • 100% Duty Cycle Mode.
  • Internal Synchronous Rectification for High Efficiency.

LM3670 from other manufacturers

See all manufacturers

Brand Logo Part Number Description Other Manufacturers
National Semiconductor Logo LM3670 Miniature Step-Down DC-DC Converter National Semiconductor

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