Output Voltage: 0V~34.5V
Number of Outputs: 1
Operating Temperature: -40℃~+125℃@(Tj)
Output Configuration: Positive
Operating Voltage: 36V
Output Current: 1.5A
Features: Adjustable current limiting;Reverse polarity voltage protection;Reverse-polarity current protection;Short Circuit Protection;Thermal shutdown;Over Current Protection
Output Type: Adjustable

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
ECCN: EAR99
Packaging: Tape & Reel (TR)
Standard pack: 750 / Reel
Sold per: Piece
Minimum order: 1
Unit weight: 1.855 g

Overview

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 (I₀₊ₜ/5000) and die junction temperature output (1µA/℃) 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 x 4mm DFN.

Applications

All Surface Mount Power Supply
Rugged Industrial Power Supply
Post Regulator for Switching Supplies
Low Output Voltage Supply
Intrinsic Safety Applications

Key features

Extended Safe Operating Area
Maximum Output Current: 1.5A
Stable with or without Input/Output Capacitors
Wide Input Voltage Range: 1.2V to 36V
Single Resistor Sets Output Voltage
Output Current Monitor: I₀₊ₜ/5000
Junction Temperature Monitor: 1µA/°C
Output Adjustable to 0V
50µA SET Pin Current: 1% Initial Accuracy
Output Voltage Noise: 27µV RMS
Parallel Multiple Devices for Higher Current or Heat Spreading
Programmable Current Limit
Reverse-Battery and Reverse-Current Protection
<1mV Load Regulation Typical Independent of VOUT
<0.001 %/V Line Regulation Typical
Available in Thermally-Enhanced 12-Lead 4mm × 4mm DFN and 16-Lead TSSOP, 7-Lead DD-Pak and 7-Lead TO-220

Alternatives

Similar parts — check the datasheet before substituting.

	Manufacturer	Package	Stock	Price from (excl. GST)	Action
LT3081IR#PBF#C670330ADI · DDPAK-7	ADI	DDPAK-7	7	₹2,031.48 · 7 in stock	View
LT3081IR#TRPBF#C670331ADI · DDPAK-7	ADI	DDPAK-7	On request	₹804.56 · 0 in stock	View
LT3081ER#PBF#C117395ADI · TO-263-7	ADI	TO-263-7	On request	₹1,810.74 · 0 in stock	View