LM3678 Datasheet High-performance Miniature 1.5-a Step-down DC-dc Converter

Manufacturer: Texas Instruments

Overview: LM3678 www.ti.com SNVS464C – APRIL 2008 – REVISED MAY 2013 High-Performance Miniature 1.

Datasheet Details

Part number	LM3678
Manufacturer	Texas Instruments
File Size	1.90 MB
Description	High-Performance Miniature 1.5-A Step-Down DC-DC Converter
Datasheet	LM3678-etcTI.pdf

General Description

The LM3678 step-down DC-DC converter is optimized for powering low-voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.5 V to 5.5 V.

It provides up to 1.5-A load current, over the entire input voltage range.

LM3678 offers a 0.8V or 1.2V option.

Key Features

1.
2 VOUT = 0.8 V or 1.2 V.
VIN = 2.5 V to 5.5 V.
1.5-A Maximum Load Capability.
3.3-MHz (Typical) PWM Fixed Switching Frequency Allows Use of 1-µH Inductor.
±3% DC Output Voltage Precision.
0.01-µA (Typical) Shutdown Current.
Internal Synchronous Rectification for High Efficiency.
Internal Soft Start.
Current Overload and Thermal Shutdown Protection.

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