LT3089EFE#PBF

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Analog Devices Inc./Maxim Integrated

800MA SINGLE RESISTOR RUGGED LINEAR REGULATOR WITH MONITORS

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LT3089EFE#PBF

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Analog Devices Inc./Maxim Integrated

800MA SINGLE RESISTOR RUGGED LINEAR REGULATOR WITH MONITORS

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Description Specifications Series Pricing CAD Documents

Description

General part information

LT3089 Series

The LT3089 is an 800mA 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 LT3089 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 LT3089’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 enables load regulation to be independent of output voltage. The LT3089 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 LT3089 is offered in the 12-lead 4mm × 4mm DFN and 16-lead TSSOP (both with exposed pad for improved thermal performance), and 7-lead DD-Pak power package.ApplicationsAll Surface Mount Power SupplyRugged Industrial Power SupplyPost Regulator for Switching SuppliesLow Output Voltage SupplyIntrinsic Safety Applications

Technical Specifications

Parameters and characteristics for this part

Specification	LT3089EFE#PBF

Control Features	Current Limit
Current - Output	800 mA
Current - Quiescent (Iq)	50.5 µA
Current - Supply (Max)	3 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package Features	Exposed Pad
Package Length	0.173 in
Package Name	16-TSSOP, 16-TSSOP-EP
Package Width	4.4 mm
Protection Features	Reverse Polarity, Short Circuit, Over Current, Over Temperature
PSRR (Maximum)	90 dB
PSRR (Minimum)	20 dB
Voltage - Input (Max)	36 V
Voltage - Output (Max)	34.5 V
Voltage - Output (Min/Fixed)	0 V
Voltage Dropout (Max)	1.65 V

LT3089 Series

800mA Single Resistor Rugged Linear Regulator with Monitors

Part	Current - Quiescent (Iq)	Current - Output	Voltage Dropout (Max)	Voltage - Input (Max)	Protection Features	Operating Temperature (Max)	Operating Temperature (Min)	Package Name	Current - Supply (Max)	Package Leads	Output Type	Output Configuration	Voltage - Output (Max)	Mounting Type	Control Features	Number of Regulators	PSRR (Minimum)	PSRR (Maximum)	Package / Case	Package Width	Package Length	Package Features
Analog Devices Inc./Maxim Integrated LT3089IR#TRPBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	D2PAK DDPAK-7	3 mA	7 Leads	Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB
Analog Devices Inc./Maxim Integrated LT3089EDF#PBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	12-DFN	3 mA		Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB	12-WFDFN Exposed Pad	4 mm	4 mm
Analog Devices Inc./Maxim Integrated LT3089EDF#TRPBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	12-DFN	3 mA		Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB	12-WFDFN Exposed Pad	4 mm	4 mm
Analog Devices Inc./Maxim Integrated LT3089IDF#TRPBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	12-DFN	3 mA		Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB	12-WFDFN Exposed Pad	4 mm	4 mm
Analog Devices Inc./Maxim Integrated LT3089IR#PBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	D2PAK DDPAK-7	3 mA	7 Leads	Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB
Analog Devices Inc./Maxim Integrated LT3089IFE#TRPBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	16-TSSOP 16-TSSOP-EP	3 mA		Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB		4.4 mm	0.173 in	Exposed Pad
Analog Devices Inc./Maxim Integrated LT3089ER#TRPBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	D2PAK DDPAK-7	3 mA	7 Leads	Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB
Analog Devices Inc./Maxim Integrated LT3089ER#PBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	D2PAK DDPAK-7	3 mA	7 Leads	Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB
Analog Devices Inc./Maxim Integrated LT3089IDF#PBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	12-DFN	3 mA		Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB	12-WFDFN Exposed Pad	4 mm	4 mm
Analog Devices Inc./Maxim Integrated LT3089EFE#TRPBF	50.5 µA	800 mA	1.65 V	36 V	Over Current Over Temperature Reverse Polarity Short Circuit	125 °C	-40 °C	16-TSSOP 16-TSSOP-EP	3 mA		Adjustable	Positive	34.5 V	Surface Mount	Current Limit	1	20 dB	90 dB		4.4 mm	0.173 in	Exposed Pad

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R531 Reliability Data

LT3089EFE#PBF | Datasheet