LT3083ET#PBF

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Analog Devices

ADJUSTABLE 3A SINGLE RESISTOR LOW DROPOUT REGULATOR

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LT3083ET#PBF

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Analog Devices

ADJUSTABLE 3A SINGLE RESISTOR LOW DROPOUT REGULATOR

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Technical Specifications

Parameters and characteristics for this part

Specification	LT3083ET#PBF

Current - Output	3 A
Current - Quiescent (Iq)	50.5 µA
Current - Supply (Max) [Max]	1 mA
Mounting Type	Through Hole
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	TO-220-5
Protection Features	Over Temperature, Over Current, Short Circuit
PSRR	20 dB, 85 dB
Supplier Device Package	TO-220-5
Voltage - Input (Max) [Max]	23 V
Voltage - Output (Max) [Max]	23 V
Voltage - Output (Min/Fixed)	0 V
Voltage Dropout (Max) [Max]	0.51 V

LT3083 Series

Adjustable 3A Single Resistor Low Dropout Regulator

Part	Current - Quiescent (Iq)	Voltage Dropout (Max) [Max]	Output Configuration	Voltage - Output (Max) [Max]	Mounting Type	Protection Features	Number of Regulators	Supplier Device Package	Voltage - Input (Max) [Max]	Current - Supply (Max) [Max]	Package / Case [custom]	Package / Case	Package / Case [custom]	Operating Temperature [Max]	Operating Temperature [Min]	PSRR	Output Type	Current - Output
Analog Devices LT3083IFE#TRPBF	50.5 µA	0.42 V	Positive	14 V	Surface Mount	Over Current Over Temperature Short Circuit	1	16-TSSOP-EP	14 V	1 mA	0.173 "	16-TSSOP Exposed Pad	4.4 mm	125 °C	-40 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083MPDF#TRPBF	50.5 µA	0.42 V	Positive	14 V	Surface Mount	Over Current Over Temperature Short Circuit	1	12-DFN (4x4)	14 V	1 mA		12-WFDFN Exposed Pad		125 °C	-55 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083EQ#TRPBF	50.5 µA	0.51 V	Positive	23 V	Surface Mount	Over Current Over Temperature Short Circuit	1	DDPAK-5	23 V	1 mA		D2PAK (5 Leads + Tab) TO-263-6 TO-263BA		125 °C	-40 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083IT#PBF	50.5 µA	0.51 V	Positive	23 V	Through Hole	Over Current Over Temperature Short Circuit	1	TO-220-5	23 V	1 mA		TO-220-5		125 °C	-40 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083MPDF	50.5 µA	0.42 V	Positive	14 V	Surface Mount	Over Current Over Temperature Short Circuit	1	12-DFN (4x4)	14 V	1 mA		12-WFDFN Exposed Pad		125 °C	-55 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083ET#PBF	50.5 µA	0.51 V	Positive	23 V	Through Hole	Over Current Over Temperature Short Circuit	1	TO-220-5	23 V	1 mA		TO-220-5		125 °C	-40 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083EDF	50.5 µA	0.42 V	Positive	14 V	Surface Mount	Over Current Over Temperature Short Circuit	1	12-DFN (4x4)	14 V	1 mA		12-WFDFN Exposed Pad		125 °C	-40 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083ET#TRPBF	50.5 µA	0.51 V	Positive	23 V	Through Hole	Over Current Over Temperature Short Circuit	1	TO-220-5	23 V	1 mA		TO-220-5		125 °C	-40 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083IFE#PBF	50.5 µA	0.42 V	Positive	14 V	Surface Mount	Over Current Over Temperature Short Circuit	1	16-TSSOP-EP	14 V	1 mA	0.173 "	16-TSSOP Exposed Pad	4.4 mm	125 °C	-40 °C	20 dB 85 dB	Adjustable	3 A
Analog Devices LT3083IDF	50.5 µA	0.42 V	Positive	14 V	Surface Mount	Over Current Over Temperature Short Circuit	1	12-DFN (4x4)	14 V	1 mA		12-WFDFN Exposed Pad		125 °C	-40 °C	20 dB 85 dB	Adjustable	3 A

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 12.35
		10	$ 8.50
		50	$ 6.88
		100	$ 6.36
		250	$ 6.08

Description

General part information

LT3083 Series

The LT3083 is a 3A low dropout linear regulator that can be paralleled to increase output current or spread heat on surface mounted boards. Architected as a precision current source and voltage follower, this new regulator finds use in many applications requiring high current, adjustability to zero, and no heat sink. The device also brings out the collector of the pass transistor to allow low dropout operation—down to 310mV—when used with multiple supplies.A key feature of the LT3083 is the capability to supply a wide output voltage range. By using a reference current through a single resistor, the output voltage is programmed to any level between zero and 23V (DD-PAK and TO-220 packages). The LT3083 is stable with 10μF of capacitance on the output, and the IC is stable with small ceramic capacitors that do not require additional ESR as is common with other regulators.Internal protection circuitry includes current limiting and thermal limiting. The LT3083 is offered in the 16-lead TSSOP (with an exposed pad for better thermal characteristics), 12-lead 4mm × 4mm DFN (also with an exposed pad), 5-lead TO-220, and 5-lead surface mount DD-PAK packages.ApplicationsHigh Efficiency Linear RegulatorPost Regulator for Switching SuppliesLow Parts Count Variable Voltage SupplyLow Output Voltage Power Supplies

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LT308x Selector Card

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