LM1086IS-3.3/NOPB

$2.11

Description：IC REG LINEAR 3.3V 1.5A TO263
Series：-
Mfr：Texas Instruments
Package：Tube

SKU:161051cb4dd3 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 1.5A TO263
Series：-
Mfr：Texas Instruments
Package：Tube
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：27.5V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Voltage Dropout (Max)：1.5V @ 1.5A
Current - Output：1.5A
Current - Quiescent (Iq)：5 mA
Current - Supply (Max)：10 mA
PSRR：72dB (120Hz)
Control Features：-
Protection Features：Over Current, Over Temperature, Short Circuit
Operating Temperature：-40°C ~ 125°C
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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LM1086IS-3.3/NOPB

Overview

The LM1086IS-3.3/NOPB is a fixed positive low-dropout linear voltage regulator manufactured by Texas Instruments. It provides a fixed output voltage of 3.3 V with a maximum output current capability of 1.5 A. The device operates within an input voltage range of 2.6 V to 27 V and features a typical dropout voltage of 1.3 V at full load. It is housed in a D2PAK-3 (TO-263-3) surface-mount package. The regulator supports an operating temperature range from -40 °C to +125 °C and includes internal safety features such as thermal shutdown and current limiting.

Feature Summary

Fixed 3.3 V output voltage for stable power supply applications
Low dropout characteristic enabling efficient regulation with minimal input-output differential
Integrated thermal shutdown and current limiting protection mechanisms

Applications

Point-of-load regulation in embedded systems
Power supplies for microcontrollers and digital logic circuits
Battery-powered equipment requiring efficient step-down conversion

Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and RoHS adherence. Confirm the TO-263-3 package variant matches your PCB footprint requirements. Check manufacturer documentation for specific handling precautions regarding moisture sensitivity levels during surface mount assembly processes.

Selection Notes

Select this component when a fixed 3.3 V rail is required with up to 1.5 A load capacity. Ensure the input voltage remains within the specified 2.6 V to 27 V range under all operating conditions. Consider the thermal performance of the D2PAK package and implement adequate heatsinking if the power dissipation exceeds the device's thermal resistance limits at high ambient temperatures.

Part Context

This device belongs to the LM1086 family of 1.5 A low-dropout regulators, which also includes adjustable versions and alternative packages like TO-220. The IS-3.3/NOPB designation specifically identifies the fixed 3.3 V output version in the industrial temperature grade surface-mount package. It serves as a direct replacement for older National Semiconductor equivalents in modern designs.