LM3200 Datasheet (National Semiconductor) - Step-Down DC-DC Converter

LM3200, Step-Down DC-DC Converter

The LM3200 is a DC-DC converter optimized for powering RF power amplifiers (PAs) from a single Lithium-Ion cell.

It steps down an input voltage of 2.7V to 5.5V to a variable output voltage of 0.8V to 3.6V.

The output voltage is set using an analog input ( VCON) for optimizing efficiency of the RF PA

LM3200 Features

* and performance for mobile phones and similar RF PA applications. Fixedfrequency PWM mode minimizes RF interference. Bypass mode turns on an internal bypass switch to power the PA directly from the battery. LM3200 has both forced and automatic bypass modes. Shutdown mode turns the device off and red