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Product Detailed Parameters
- Description：IC REG LINEAR 5V 800MA TO252-3
- Series：-
- 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)：5V
- 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：0°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：-
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Overview
The LM1117DTX-5.0/NOPB is a fixed-output low-dropout linear regulator manufactured by Texas Instruments, providing a stable 5 V output with a maximum load current of 800 mA. It utilizes the SOT-223 (NDP) surface-mount package and operates within a junction temperature range of 0°C to +125°C. The device features a typical dropout voltage of 1.2 V at full load and includes integrated current limiting and thermal shutdown protection. Line regulation is specified at a maximum of 0.2%, while load regulation is limited to 0.4%. Ripple rejection measures 75 dB at 120 Hz.
Feature Summary
- Provides a fixed 5 V regulated output with high accuracy using an internal Zener-trimmed bandgap reference.
- Incorporates built-in current limiting and thermal shutdown mechanisms for robust circuit protection.
- Delivers efficient power management in a compact surface-mount footprint suitable for space-constrained designs.
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC power supplies
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify that the specific ordering suffix matches the required tape-and-reel packaging configuration, as indicated by the 'TX' designation in the part number. Confirm compliance with RoHS directives and ensure the component meets the intended operating temperature specifications for your application environment before finalizing procurement.
Selection Notes
Select this component when a fixed 5 V rail is required with up to 800 mA capacity. Ensure the input voltage provides sufficient headroom above the 1.2 V dropout threshold under maximum load conditions. Verify that the PCB layout supports adequate thermal dissipation to maintain junction temperatures within the 0°C to +125°C operational range during continuous operation.
Part Context
This device belongs to the LM1117 family of low-dropout regulators, which also includes adjustable versions and variants with extended industrial temperature ranges such as the LM1117I series. The family offers multiple fixed voltage options including 1.8 V, 2.5 V, 3.3 V, and 5 V, alongside the adjustable configuration, all sharing similar protection features and pinouts across various package types.
Replacement Considerations
The TLV1117 is documented as a drop-in alternative. For applications requiring improved functionality in the SOT-223 package, the TLV761 is suggested as a replacement option.
