Adjustable Step-down Dc-dc Converter And 3 Ldos For Rf Power Management - National Semiconductor

The LM3280 is a multi-functional Power Management Unit, optimized for low-power handheld applications such as Cel- lular 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 volt- age CAN be set using an Analog input (VCON) for optimizing efficiency of the RF PA at various power levels. The LDO op- erates a nominal output voltage of 2.85V and maximum load current capability of 20mA for a reference voltage required by linear RF Power Amplifiers The LM3280 additionally features a separate enable pin for each output. The LM3280 is available in a 16-pin lead free micro SMD package. By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM3280TL/NOPB Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85
LM3280TL-290/NOPB Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85
LM3280TLX-290/NOPB Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85
LM3280TLX-275/NOPB Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85
LM3280TLEV Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management
LM3280TL-280/NOPB Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85
LM3280TLX/NOPB Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85
LM3280TLX-280/NOPB Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85
LM3280TL-275/NOPB Texas Instruments Adjustable Step-Down DC-DC Converter and 3 LDOs for RF Power Management 16-DSBGA -30 to 85
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LM3280 Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
LM3280 circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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