DC1368A

DC1368A demonstration circuit shows adjustable linear regulators in parallel using LT3080-1. Architected as a precision current source and voltage follower, it allows this new regulator to be used in many applications requiring high current, adjustability to zero output, and no heat sink. Also the device brings out the collector of the pass transistor to allow low dropout operation when used with multiple supplies. A key feature of the LT3080-1 is the capability to supply a wide output voltage range. By using a reference current through a single resistor, the output voltage can be programmed to any level between zero and 36V. The DC1368A has a reduced input voltage 25V due to input capacitor voltage rating. LT3080-1 incorporates an internal ballast resistor to allow direct paralleling of devices without the need for PC board resistors or sensor resistors.

• Vin voltage range from 1.7 to 25V at Vout = 1.2V, TA = 25°C
• Vcontrol voltage range from 2.8 to 25V at Vout = 1.2V, TA = 25°C
• Output Voltage of 1.17V ±3% at Iout = 4.4A, TA = 25°C
• Output current range from 4mA to 4.4A at TA = 25°C

Notes

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