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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 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)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.3V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：10 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 LD1117DT25CTR is a positive low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 2.5V with a maximum output current capability of 0.8A. The device supports an input voltage range up to 15V and utilizes the SOT-223 surface-mount package. Designed for high efficiency, it maintains stable regulation under varying load conditions.
Feature Summary
- Fixed 2.5V output voltage configuration
- Low dropout operation for efficient power management
- Integrated thermal overload and short-circuit protection
Applications
- Efficient linear power supply designs
- Battery-powered equipment requiring stable voltage rails
- Communication products needing clean power delivery
Procurement Notes
Verify the complete part number against official STMicroelectronics documentation to ensure correct suffix alignment. Confirm that the DT25 variant matches the required SOT-223 package and 2.5V fixed output specification. Cross-reference datasheet revisions to validate pinout compatibility and thermal performance characteristics before finalizing procurement orders.
Selection Notes
Select this component when a precise 2.5V rail is required from higher input voltages. Ensure the application does not exceed the 0.8A continuous current limit. Verify that the SOT-223 package thermal dissipation capabilities are sufficient for the expected ambient temperature and power loss conditions in the target design environment.
Part Context
This component belongs to the LD1117 series of low-dropout regulators produced by STMicroelectronics. The series offers various fixed output voltages and adjustable versions. The LD1117 family is widely used in industrial and consumer electronics for its reliability and ability to provide stable voltage regulation with minimal external components.
Replacement Considerations
Compatible substitutes include other LD1117 variants with matching voltage and package specifications, such as LD1117S25TR or LD1117V25. Verify pinout compatibility and thermal resistance values before substitution.
