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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 1.5A TO263
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：27V
- Voltage - Output (Min/Fixed)：2.5V
- 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：72dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：0°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 LM1086CSX-2.5/NOPB is a fixed positive low-dropout linear regulator manufactured by Texas Instruments, delivering a maximum output current of 1.5 A with a fixed output voltage of 2.5 V. It operates within an input voltage range of 2.6 V to 30 V and features a typical dropout voltage of 1.3 V at full load. The device is housed in a surface-mount D2PAK (TO-263) package with three pins. It supports an operating temperature range from -40°C to +125°C and includes internal thermal overload and short-circuit protection mechanisms.
Feature Summary
- Provides stable regulation for single-output applications requiring a fixed 2.5 V supply
- Supports high continuous load currents up to 1.5 A with minimal voltage drop
- Integrates comprehensive protection against thermal overload and output short circuits
Applications
- Portable battery-powered equipment requiring efficient voltage step-down
- Post-regulation stages for switching power supplies
- Embedded systems requiring stable logic or analog supply rails
Procurement Notes
Verify the specific suffix 'CSX' confirms the D2PAK surface-mount package variant rather than through-hole versions. Ensure the 'NOPB' designation aligns with lead-free and RoHS compliance requirements for your manufacturing process. Confirm that the fixed 2.5 V output matches the target circuit design, as adjustable variants require external resistors.
Selection Notes
Select this component when a fixed 2.5 V rail is required with high current capability. Compare the 1.3 V dropout specification against the minimum available input voltage to ensure proper regulation under all load conditions. Consider the thermal resistance of the D2PAK package for heat dissipation needs in enclosed designs.
Part Context
This part belongs to the LM1086 family of 1.5 A LDO regulators from Texas Instruments. The series offers both fixed and adjustable output options across various packages including TO-220 and D2PAK. The CSX suffix specifically denotes the surface-mount D2PAK configuration, distinguishing it from the CT (TO-220) or IS (SOT-223) variants.
Replacement Considerations
Direct substitutes include other LM1086 variants such as LM1086ISX-2.5/NOPB for SOT-223 packaging or LM1086CT-ADJ/NOPB for adjustable through-hole applications. Verify pinout compatibility and thermal performance before swapping between package types.
