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LM3673 Datasheet Step-down DC-dc Converter

Manufacturer: National Semiconductor (now Texas Instruments)

Overview: .. LM3673 2MHz, 350mA Step-Down DC-DC Converter November 2006 LM3673 2MHz, 350mA Step-Down DC-DC.

General Description

The LM3673 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7V to 5.5V.

It provides up to 350mA load current, over the entire input voltage range.

There are several different fixed voltage output options available as well as an adjustable output voltage version ranging from 1.1V to 3.3V.

Key Features

  • and performance for mobile phones and similar portable systems. The LM3673 uses intelligent automatic switching between PWM and PFM for better efficiency. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typ). Hysteretic PFM mode extends the battery life by reducing the quiescent current to 16 µA (typ) during light load and standby operation. Internal synchronous rectification provides high efficiency during PWM mode operation. In shutdown mode, the device turns off and reduce.

LM3673 from other manufacturers

See all manufacturers

Brand Logo Part Number Description Other Manufacturers
Texas Instruments Logo LM3673 350-mA Step-Down DC-DC Converter Texas Instruments

More Datasheets from National Semiconductor (now Texas Instruments)

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LM3613 Dual Peripheral Drivers

LM3673 Distributor