LM1085IS-3.3

$3.22

Description：IC REG LINEAR 3.3V 3A TO263
Series：-
Mfr：Texas Instruments
Package：Tube

SKU:f596a2306b84 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 3.3V 3A TO263
Series：-
Mfr：Texas Instruments
Package：Tube
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：27V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Voltage Dropout (Max)：1.5V @ 3A
Current - Output：3A
Current - Quiescent (Iq)：10 mA
Current - Supply (Max)：-
PSRR：72dB (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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LM1085IS-3.3

Overview

The LM1085IS-3.3 is a positive linear voltage regulator from the LM1085 series, manufactured by Texas Instruments. It provides a fixed 3.3V output with a maximum current capability of 3A. The device operates within an input voltage range of 2.6V to 29V and features a maximum dropout voltage of 1.5V at full load. It is housed in a surface-mount TO-263 (DDPAK-3) package, suitable for applications requiring high efficiency and low heat dissipation. The component supports an operating junction temperature range from -40°C to +125°C.

Feature Summary

Fixed 3.3V output configuration for stable power supply applications
High current delivery capability up to 3A
Low dropout voltage design for improved efficiency
Integrated thermal overload and short-circuit protection

Applications

Battery-powered systems requiring efficient voltage regulation
Post-regulation for switching regulators
General-purpose power supplies

Procurement Notes

Verify the specific suffix and manufacturer documentation carefully, as availability may vary due to lifecycle status. Confirm that the received component matches the exact part number and package type specified in your design requirements. Check for RoHS compliance markers if environmental regulations apply to your manufacturing process. Ensure proper handling procedures are followed during assembly to prevent electrostatic discharge damage.

Selection Notes

Select this component when a fixed 3.3V output is required with up to 3A load current. Consider the thermal management capabilities of the TO-263 package for your application's power dissipation needs. Evaluate the input voltage range to ensure it remains within the specified 2.6V to 29V limits under all operating conditions. Compare dropout voltage specifications against your minimum input-output differential requirements.

Part Context

The LM1085 series consists of adjustable and fixed positive regulators capable of delivering over 3A. These devices are designed for use in applications where efficiency, ease of use, and low cost are critical. The LM1085IS-3.3 variant specifically offers a fixed 3.3V output, making it suitable for digital logic power rails and other standard voltage requirements in consumer and industrial electronics.