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Product Detailed Parameters
- Description：IC REG LINEAR 1.2V 800MA DPAK
- Series：-
- Mfr：STMicroelectronics
- 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)：1.2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.3V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：-
- 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：DPAK
- Grade：-
- Qualification：-
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Overview
The LD1117DT12CTR is a low-dropout linear regulator (LDO) manufactured by STMicroelectronics, designed for surface-mount applications. It provides a fixed 1.2V output voltage with an input voltage range up to 15V. The device operates within a temperature range of 0°C to 125°C and features a maximum static current of 5mA. Packaged in a compact SOT-223 format measuring 6.6mm x 6.2mm x 2.4mm, it includes internal overcurrent and thermal protection mechanisms to ensure reliable performance in various electronic circuits.
Feature Summary
- Fixed 1.2V output voltage regulation
- Integrated overcurrent and thermal protection
- Low static current consumption
Applications
- Battery-powered systems requiring stable low voltage rails
- Communication equipment power supplies
- Portable instrumentation circuits
Procurement Notes
Verify the specific suffix 'CTR' against the manufacturer's official datasheet to confirm tape-and-reel packaging specifications and exact pinout configuration. Ensure the operating environment remains within the specified 125°C maximum junction temperature limit to maintain device reliability and prevent thermal shutdown during high-load conditions.
Selection Notes
Select this component when a precise 1.2V fixed output is required from a source voltage up to 15V. Consider its SOT-223 package for space-constrained PCB layouts. Evaluate thermal dissipation requirements based on the load current and ambient temperature to ensure the device stays within safe operating limits without external heatsinking.
Part Context
This part belongs to the LD1117 series of low-dropout regulators from STMicroelectronics. The series offers various fixed and adjustable output voltages, catering to diverse power management needs in consumer electronics and industrial applications. The DT12 variant specifically targets low-voltage digital logic supply requirements.
Replacement Considerations
Check for direct cross-reference parts such as the LM1117DT-1.2 or AMS1117-1.2, ensuring identical pinouts and electrical characteristics match the original design constraints.
