LM3207 Datasheet - National Semiconductor

LM3207 Step-Down DC-DC Converter

The LM3207 is a DC-DC converter optimized for powering WCDMA / CDMA RF power amplifiers (PAs) from a single Lithium-Ion cell; however they may be used in many other applications. It steps down an input voltage from 2.7V to 5.5V to a variable output voltage from 0.8V(typ.) to 3.6V(typ.). Output volta.

LM3207 Features

* 2MHz (typ.) PWM Switching Frequency

* Operates from a single Li-Ion cell (2.7V to 5.5V)

* Variable Output Voltage (0.8V to 3.6V)

* 650mA Maximum load capability

* High Efficiency (95% Typ at 3.9VIN, 3.4VOUT at 400mA) from internal synchronous rectification

* Integrated Vref

LM3207 Datasheet (1.50 MB)