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Product Detailed Parameters
- Description：IC REG LINEAR 5V 1.5A TO263
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：5V
- 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：68dB (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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Overview
The LM1086IS-5.0/NOPB is a fixed positive low dropout linear regulator manufactured by Texas Instruments, delivering a stable 5.0 V output with a maximum current capacity of 1.5 A. Housed in a surface-mount D2PAK (TO-263-3) package, this device supports input voltages up to 30 V and operates reliably across an extended temperature range from -40°C to +125°C. It features a typical dropout voltage of 1.3 V at full load and provides high power supply rejection ratio performance of 68 dB. The regulator includes internal thermal overload and short-circuit protection mechanisms to ensure robust operation under demanding conditions.
Feature Summary
- Provides a fixed 5.0 V regulated output suitable for standard logic and analog circuits
- Supports continuous load currents up to 1.5 A with efficient low dropout regulation
- Integrated thermal shutdown and current limiting protect the device during fault conditions
Applications
- Point-of-load regulation for embedded systems
- Power supplies for microcontrollers and digital logic circuits
- Battery-powered equipment requiring stable voltage rails
Procurement Notes
Verify that the ordering suffix /NOPB confirms lead-free compliance and RoHS adherence as per manufacturer specifications. Confirm the D2PAK-3 package variant matches your PCB footprint requirements. Ensure the fixed 5.0 V output aligns with your system design needs, as adjustable or other voltage variants exist within the same family. Cross-reference the specific datasheet revision for any updates on recommended external capacitor values.
Selection Notes
Select this component when a fixed 5.0 V rail is required with moderate current demands up to 1.5 A. The D2PAK package offers superior thermal dissipation compared to smaller SOT packages, making it suitable for applications where heat management is critical. Consider the 30 V maximum input rating to ensure compatibility with your source voltage. Verify that the 68 dB PSRR meets your noise sensitivity requirements for downstream analog components.
Part Context
This part belongs to the LM1086 series of 1.5 A low dropout positive regulators from Texas Instruments. The series includes various fixed voltage options and adjustable versions, available in both through-hole and surface-mount packages. The IS suffix indicates the industrial temperature grade and surface-mount packaging, distinguishing it from commercial grade or through-hole variants like the CT or CG series.
Replacement Considerations
LM1086IS-5.0/NOPB is functionally equivalent to LM1086ISX-5.0/NOPB, differing primarily in reel versus tube packaging. Other fixed 5.0 V LDOs from different manufacturers may require verification of pinout compatibility and thermal characteristics.
