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ADI LT3081IR#PBF product image
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ADI LT3081IR#PBF

Manufacturer
MPN
LT3081IR#PBF
LCSC Part #
C670330
Packaging
DDPAK-7
Customer #
Key Attributes
0V~34.5V Positive Adjustable DDPAK-7 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators RoHS
DatasheetADI LT3081IR#PBF
RoHS Compliance1 documents available
Alternative Parts3
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement
In-Stock: 7
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QtyUnit PriceTotal Amount
1+$ 15.3551$ 15.36
10+$ 14.6029$ 146.03
30+$ 13.2974$ 398.92
100+$ 12.1601$ 1216.01
Standard Packaging50/Full Tube
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
ManufacturerADI
PackagingDDPAK-7
Output Voltage0V~34.5V
Number of Outputs1
Operating Temperature-40℃~+125℃
Supply Current (Iq)50uA
Output ConfigurationPositive
Operating Voltage36V
Output Current1.5A
FeaturesAdjustable current limiting;Reverse polarity voltage protection;Reverse-polarity current protection;Short Circuit Protection;Thermal shutdown;Over Current Protection
Output TypeAdjustable

Introduction

AI Translation

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.

Features

AI Translation
  • 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

Applications

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

Alternative Parts

MPNManufacturerAlternative TypePackagingAvailabilityUnit Price
LT3081ER#TRPBFADISimilarDDPAK-714$ 11.4717
LT3081ER#PBFADISimilarTO-263-74$ 20.1361
LT3081IR#TRPBFADISimilarDDPAK-70$ 6.0813
3 more alternative parts.View all substitutes