LT3081HT7#PBF

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Analog Devices

1.5A SINGLE RESISTOR RUGGED LINEAR REGULATOR WITH MONITORS

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LT3081HT7#PBF

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Analog Devices

1.5A SINGLE RESISTOR RUGGED LINEAR REGULATOR WITH MONITORS

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Technical Specifications

Parameters and characteristics for this part

Specification	LT3081HT7#PBF

Current - Output	1.5 A
Current - Quiescent (Iq)	50 çA
Current - Supply (Max) [Max]	5 mA
Mounting Type	Through Hole
Number of Regulators	1
Output Configuration	Positive
Output Type	Adjustable
Package / Case	TO-220-7 Formed Leads
Protection Features	Short Circuit, Reverse Polarity, Over Current, Over Temperature
PSRR [Max]	90 dB
PSRR [Min]	20 dB
Supplier Device Package	TO-220-7
Voltage - Input (Max) [Max]	36 V
Voltage - Output (Max) [Max]	34.5 V
Voltage - Output (Min/Fixed)	0 V
Voltage Dropout (Max) [Max]	1.5 V

LT3081 Series

1.5A Single Resistor Rugged Linear Regulator with Monitors

Part	Output Type	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Supplier Device Package	Protection Features	Voltage - Output (Max) [Max]	Voltage Dropout (Max) [Max]	Current - Output	Number of Regulators	Voltage - Input (Max) [Max]	PSRR [Min]	PSRR [Max]	Current - Supply (Max) [Max]	Current - Quiescent (Iq)	Output Configuration	Package / Case [custom]	Package / Case [custom]
Analog Devices LT3081IT7#PBF	Adjustable	TO-220-7 Formed Leads	125 °C	-40 °C	Through Hole	TO-220-7	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive
Analog Devices LT3081IFE#TRPBF	Adjustable	16-TSSOP Exposed Pad	125 °C	-40 °C	Surface Mount	16-TSSOP-EP	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive	0.173 "	4.4 mm
Analog Devices LT3081MPFE#TRPBF	Adjustable	16-TSSOP Exposed Pad	125 °C	-55 °C	Surface Mount	16-TSSOP-EP	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive	0.173 "	4.4 mm
Analog Devices LT3081EFE#PBF	Adjustable	16-TSSOP Exposed Pad	125 °C	-40 °C	Surface Mount	16-TSSOP-EP	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive	0.173 "	4.4 mm
Analog Devices LT3081IR#TRPBF	Adjustable	D2PAK (7 Leads + Tab) TO-263-8 TO-263CA	125 °C	-40 °C	Surface Mount	DDPAK-7	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive
Analog Devices LT3081EDF#PBF	Adjustable	12-WFDFN Exposed Pad	125 °C	-40 °C	Surface Mount	12-DFN (4x4)	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive
Analog Devices LT3081HFE#PBF	Adjustable	16-TSSOP Exposed Pad	140 °C	-40 °C	Surface Mount	16-TSSOP-EP	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive	0.173 "	4.4 mm
Analog Devices LT3081EDF	Adjustable	12-WFDFN Exposed Pad	125 °C	-40 °C	Surface Mount	12-DFN (4x4)	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive
Analog Devices LT3081HT7#PBF	Adjustable	TO-220-7 Formed Leads			Through Hole	TO-220-7	Over Current Over Temperature Reverse Polarity Short Circuit	34.5 V	1.5 V	1.5 A	1	36 V	20 dB	90 dB	5 mA	50 çA	Positive

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	$ 11.81
		10	$ 8.29
		25	$ 7.39
		100	$ 6.38
		250	$ 5.89
		500	$ 5.59
		1000	$ 5.34

Description

General part information

LT3081 Series

The LT3081 is a 1.5A low dropout linear regulator designed for rugged industrial applications. Key features of the IC are the extended safe operating area (SOA), output current monitor, temperature monitor and programmable current limit. The LT3081 can be paralleled for higher output current or heat spreading. The device withstands reverse input and reverse output-to-input voltages without reverse current flow.The LT3081’s precision 50μA reference current source allows a single resistor to program output voltage to any level between zero and 34.5V. The current reference architecture makes load regulation independent of output voltage. The LT3081 is stable with or without input and output capacitors.The output current monitor (IOUT/5000) and die junction temperature output (1μA/°C) provide system monitoring and debug capability. In addition, a single resistor programs current limit.Internal protection circuitry includes reverse-battery and reverse-current protection, current limiting and thermal limiting. The LT3081 is offered in the 16-lead TSSOP (with exposed pad for improved thermal performance), 7-lead TO-220, 7-lead DD-Pak, and an 12-lead 4mm × 4mm DFN.ApplicationsAll Surface Mount Power SupplyRugged Industrial Power SupplyPost Regulator for Switching SuppliesLow Output Voltage SupplyIntrinsic Safety Applications