LM1085ISX-ADJ

$3.12

Description：IC REG LINEAR POS ADJ 3A TO263
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:41ba60547a60 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 TO263
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
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：Surface Mount
Package / Case：TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
Supplier Device Package：TO-263 (DDPAK-3)
Grade：-
Qualification：-

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LM1085ISX-ADJ

Overview

The LM1085ISX-ADJ is a positive adjustable linear voltage regulator from Texas Instruments, designed for surface-mount applications in D2PAK (TO-263) packages. It delivers up to 3 A output current with an input voltage range of 2.6 V to 29 V. The device features a typical dropout voltage of 1.3 V and a maximum of 1.5 V at full load. Operating temperatures span from -40°C to +125°C. Internal protections include thermal shutdown and current limiting.

Feature Summary

Adjustable output voltage configuration via external resistors
Integrated thermal overload and current limit protection
Low dropout performance for efficient power management

Applications

General-purpose power supply regulation
Battery-powered equipment voltage conditioning
Post-regulation for switching power supplies

Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout and electrical tolerances. Confirm RoHS compliance status as manufacturing updates may alter environmental declarations. Check for end-of-life notices or obsolescence warnings before finalizing procurement plans.

Selection Notes

Select this component when a fixed 3 A LDO is insufficient and variable output is required. Ensure the input-to-output differential voltage remains within the 29 V absolute maximum rating. Verify that the TO-263 package thermal resistance meets the system's heat dissipation requirements under maximum load conditions.

Part Context

This part belongs to the LM1085 family of low-dropout regulators. It shares the same physical footprint and basic protection architecture as fixed-voltage variants like the LM1085ISX-3.3. The adjustable version offers design flexibility while maintaining the high-current capabilities characteristic of the series.