LM1085IT-ADJ

$2.84

Description：IC REG LINEAR POS ADJ 3A TO220-3
Series：-
Mfr：Texas Instruments
Package：Tube

SKU:93e193497372 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR POS ADJ 3A TO220-3
Series：-
Mfr：Texas Instruments
Package：Tube
Output Configuration：Positive
Output Type：Adjustable
Number of Regulators：1
Voltage - Input (Max)：29V
Voltage - Output (Min/Fixed)：1.25V
Voltage - Output (Max)：15V
Voltage Dropout (Max)：1.5V @ 3A
Current - Output：3A
Current - Quiescent (Iq)：10 mA
Current - Supply (Max)：-
PSRR：75dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220-3
Grade：-
Qualification：-

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LM1085IT-ADJ

Overview

The LM1085IT-ADJ is a 3A low-dropout positive regulator manufactured by Texas Instruments. It features an adjustable output voltage range from 1.25V to 33V, set via two external resistors. The device operates with an input voltage up to 29V and maintains a maximum dropout voltage of 1.5V at full load. It includes integrated current limiting and thermal shutdown protection. The component is housed in a TO-220-3 through-hole package and supports an operating junction temperature range from -40°C to 125°C.

Feature Summary

Provides 3A output current capability with low dropout voltage characteristics
Features adjustable output voltage configuration using external resistors
Includes internal current limiting and thermal shutdown circuitry for protection

Applications

High-efficiency linear power supplies
Battery charging circuits
Post-regulation for switching power supplies
Local regulation for microprocessor systems

Procurement Notes

Verify the specific suffix and package type against the original design requirements before procurement. Confirm availability status as distribution channels may list obsolete or discontinued variants. Ensure the selected component matches the required thermal management specifications for the intended application environment.

Selection Notes

Select this component when a fixed 3A LDO is insufficient due to non-standard voltage requirements. The adjustable version allows customization between 1.25V and 33V. Consider the TO-220 package for through-hole mounting needs and adequate heat dissipation capabilities compared to surface-mount alternatives.

Part Context

This part belongs to the LM1085 series of 3A low-dropout positive regulators. It shares pin compatibility with industry-standard LM317 devices but offers improved performance metrics. The series includes fixed voltage options and lower/higher current variants like the LM1086 and LM1084.