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 800MA TO252-3
- Series：LM1117-3.3
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.2V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：10 mA
- PSRR：75dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252-3
- Grade：-
- Qualification：-
Download product information
Overview
The LM1117IDTX-3.3/NOPB is a Texas Instruments low-dropout linear regulator providing a fixed 3.3 V output with an 800 mA maximum load current. It operates within a junction temperature range of -40°C to +125°C and utilizes a SOT-223 (DCY) surface-mount package. The device features a typical dropout voltage of 1.2 V at full load, line regulation of 0.2% maximum, and load regulation of 0.4% maximum. It includes internal current limiting and thermal shutdown protection.
Feature Summary
- Provides a fixed 3.3 V regulated output for power supply applications
- Includes integrated current limiting and thermal shutdown circuitry
- Utilizes a Zener trimmed bandgap reference for high voltage accuracy
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC converters
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status as defined by Texas Instruments. Confirm the 'I' designation indicates the extended industrial temperature range (-40°C to +125°C). Ensure the 'DTX' suffix corresponds to the correct tape-and-reel packaging format required for automated assembly processes.
Selection Notes
Select this component when a fixed 3.3 V rail is required with up to 800 mA capacity in a compact SOT-223 footprint. Consider the -40°C minimum operating temperature for industrial environments. Evaluate the 1.2 V dropout requirement against the available input voltage headroom to ensure stable regulation under maximum load conditions.
Part Context
This part belongs to the LM1117 family of low-dropout regulators manufactured by Texas Instruments. It serves as a drop-in replacement for older LM317 designs while offering improved performance characteristics. The device is designed for general-purpose linear regulation tasks requiring moderate current handling capabilities.
Replacement Considerations
The TLV1117 is identified as a newer drop-in alternative. For fixed output configurations in the SOT-223 package with improved functionality, the TLV761 is recommended.
