LM3280 Datasheet (Texas Instruments) - Adjustable Step-Down DC-DC Converter

LM3280, Adjustable Step-Down DC-DC Converter

The LM3280 is a multi-functional Power Management Unit, optimized for low-power handheld applications such as Cellular Phones.

The LM3280 incorporates three low-dropout LDO voltage regulators and one step down PWM DC-DC converter with an internal Bypass FET.

The step down converter's output voltage

LM3280 Features

* 1

* 2 2MHz (typ.) PWM Switching Frequency

* Operates from a Single Li-Ion Cell (2.7V to 5.5V)

* Adjustable Output Voltage (0.8V to 3.6V) DC- DC

* High-Efficiency Synchronous Buck Converter

* 300mA Maximum Load Capability (PWM Mode)

* 500mA Maximum Load