ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 3A 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)：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：-
Download product information
Overview
The LM1085ISX-3.3/NOPB is a Texas Instruments adjustable and fixed-output positive linear regulator in the LM1085 series, housed in a TO-263 (D2PAK-3) surface-mount package. It delivers up to 3A output current with a fixed 3.3V output voltage. The device supports an input voltage range from 2.6V to 27V, operates within a junction temperature of -40°C to +125°C, and features a maximum dropout voltage of 1.5V at full load.
Feature Summary
- Provides stable positive voltage regulation for high-current applications
- Integrates internal thermal overload and current limit protection circuits
- Utilizes D2PAK-3 package design for efficient heat dissipation
Applications
- Point-of-load regulation in distributed power systems
- Pre-regulator stages for switching converters
- General-purpose power supply designs requiring 3.3V output
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for End-of-Life notices, as this specific part number may have discontinuation updates. Ensure packaging matches requirements for automated assembly processes.
Selection Notes
Select this component when a robust 3A LDO solution is required for 3.3V generation. Consider the thermal performance of the D2PAK-3 package relative to ambient conditions. Verify that the input voltage differential remains within safe operating limits to prevent excessive power dissipation.
Part Context
This device belongs to the LM1085 family of low-dropout regulators designed for high-efficiency power management. The 'ISX' suffix indicates a tape-and-reel surface-mount variant in the TO-263 package, while '/NOPB' denotes lead-free construction without specific process changes affecting functionality.
Replacement Considerations
Consult official substitution guides for compatible alternatives such as the LM1085IS-3.3/NOPB or LM1086ISX-3.3/NOPB. Verify pin compatibility and thermal characteristics before implementation.
