Direct Paralleling, High Power Density LDO

The LT3080 is a new architecture for linear regulators. It provides better regulation, a simple output adjustment with a single resistor where the output can be adjusted down to zero. Also, this architecture allows easy paralleling of regulators for “no heatsink” operation in an all surfacemount applications. The LT3080 circuit operation and applications for paralleling, spreading the heat, general purpose power supplies and current sources will be shown.

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References

Datasheets
LT3080 - Adjustable 1.1A Single Resistor Low Dropout Regulator
LT3080-1 - Parallelable 1.1A Adjustable Single Resistor Low Dropout Regulator
LT3085 - Adjustable 500mA Single Resistor Low Dropout Regulator

LT Magazine
Oct 2007 - Low Dropout Regulator Can Be Directly Paralleled to Spread The Heat

Demo Circuit
LT3080 Demo Circuit

Article
New Apps for a New Architecture Linear Regulator