LM3281 Datasheet (Texas Instruments) - 6-MHz Miniature Step-Down DC-DC Converter

LM3281, 6-MHz Miniature Step-Down DC-DC Converter

The LM3281 is a high-efficiency low-noise miniature DC-DC converter optimized for powering noisesensitive wireless connectivity chipsets and RF Front End Modules (FEMs) from a single Lithium-Ion cell.

The LM3281 is ideal for “always on” applications with very low unloaded quiescent current of 16 µA

LM3281 Features

* 1 Operates from a Single Li-Ion Cell (3 V to 5.5 V)

* 6-MHz (typ.) PWM Switching Frequency

* Fixed Output Voltage: 3.3 V

* Up to 1.2-A Maximum Load Capability

* High Efficiency: 94% (typ.) with 3.8-V VIN at 300 mA

* Analog Bypass: 60-mV (typ.) Drop-Ou