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LM3280 Adjustable Step-Down DC-DC Converter

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Description

LM3280 www.ti.com SNOSAU4B * OCTOBER 2006 * REVISED FEBRUARY 2013 LM3280 Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Pow.
The LM3280 is a multi-functional Power Management Unit, optimized for low-power handheld applications such as Cellular Phones.

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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

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 can be set using an analog input (VCON) for optimizing efficiency of the RF PA at various power levels

LM3280 Distributors

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