LD1085V

$1.34

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

SKU:5927d748979d Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR POS ADJ 3A TO220
Series：-
Mfr：STMicroelectronics
Package：Tube
Output Configuration：Positive
Output Type：Adjustable
Number of Regulators：1
Voltage - Input (Max)：30V
Voltage - Output (Min/Fixed)：1.25V
Voltage - Output (Max)：28.5V
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
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220
Grade：-
Qualification：-

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LD1085V

Overview

The LD1085V is a positive low-dropout linear voltage regulator from STMicroelectronics, designed for high-current applications. It delivers a fixed output of 5 V with a maximum continuous current capability of 3 A. The device supports an input voltage range from 3.4 V to 30 V and features a typical dropout voltage of 1.3 V, reaching a maximum of 1.5 V at full load. It incorporates internal thermal overload protection and current limiting. The regulator operates within a temperature range of -40 °C to +125 °C and is housed in a TO-220-3 through-hole package.

Feature Summary

Provides stable fixed output voltage with high current delivery capability up to 3 A
Includes integrated thermal overload protection and current limiting for enhanced reliability
Operates effectively with minimal voltage difference between input and output terminals

Applications

General-purpose power supply regulation in electronic circuits
Pre-regulator stage for switching converters
Battery-powered systems requiring efficient linear regulation
Industrial equipment power management modules

Procurement Notes

Verify the specific suffix following LD1085V to confirm the exact output voltage and package variant, as the base part number represents the series. Confirm RoHS compliance status and manufacturing origin through official distributor documentation or manufacturer datasheets before procurement. Ensure thermal design accounts for the TO-220 package characteristics under expected load conditions.

Selection Notes

Select this component when a fixed 5 V output is required with up to 3 A load current. Consider the TO-220-3 package for through-hole mounting requirements. Evaluate the input voltage range to ensure it stays within the 3.4 V to 30 V limits. Assess thermal dissipation needs based on the voltage drop and load current to determine if additional heatsinking is necessary for operation within the specified temperature range.

Part Context

The LD1085V belongs to the LD1085 family of low-dropout regulators manufactured by STMicroelectronics. This series is characterized by its ability to provide high output currents while maintaining good line and load regulation. The V suffix typically denotes the 5.0 V fixed output version in the TO-220 package, distinguishing it from other voltage variants and surface-mount packages within the same product line.