LM3691 Datasheet (Texas Instruments) - 1-A Step-Down DC-DC Converter

LM3691, 1-A Step-Down DC-DC Converter

The LM3691 step-down DC-DC converter is optimized for powering ultra-low-voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries.

It provides up to 1-A load current over an input voltage range from 2.3 V to 5.5 V.

There are several different fixed voltage output options available.

LM3691 Features

* 1 Input Voltage: 2.3 V to 5.5 V

* Output Voltage: 0.75 V to 3.3 V

* ±1% DC Output Voltage Precision

* 4-MHz Switching Frequency

* 64-μA (typical) Quiescent Current in ECO Mode

* 1-A Maximum Load Capability

* Automatic ECO/PWM Mode Switching