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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 800MA SOT-223
- 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-261-4, TO-261AA
- Supplier Device Package：SOT-223
- Grade：-
- Qualification：-
Download product information
Overview
The LD1117S25CTR is a fixed-output positive low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 2.5 V output with a maximum current capability of 950 mA. The device operates within an input voltage range of 3.3 V to 15 V and features a typical dropout voltage of 1 V. It incorporates internal thermal overload protection and current limiting for robust operation. The component is housed in a surface-mount SOT-223 package, suitable for space-constrained designs requiring efficient power management.
Feature Summary
- Provides a fixed 2.5 V regulated output voltage
- Delivers up to 950 mA of continuous output current
- Includes integrated thermal shutdown and current limiting protections
Applications
- Portable battery-powered equipment
- Post-regulation for switching power supplies
- Embedded system power distribution
Procurement Notes
Verify the specific suffix 'CTR' against the manufacturer's official datasheet to confirm the exact packaging configuration and reel specifications. Ensure the ordering part number matches the required tape-and-reel quantity and that the component meets the necessary RoHS compliance standards for your region.
Selection Notes
Select this component when a fixed 2.5 V rail is required with high current capacity. Verify that the input-to-output voltage differential remains above the minimum dropout threshold under all load conditions. Confirm that the SOT-223 package thermal dissipation capabilities are sufficient for the expected ambient temperature and power loss.
Part Context
This part belongs to the LD1117 series of low-dropout regulators from STMicroelectronics. The series offers various fixed output voltages and adjustable versions. The SOT-223 package variant is designed for surface-mount applications, providing a balance between thermal performance and board space efficiency compared to through-hole alternatives.
Replacement Considerations
LD1117S25TR
FAQ
What is the maximum input voltage for the LD1117S25CTR?
The maximum input voltage is 15 V.
Does the LD1117S25CTR include protection features?
Yes, it includes internal thermal overload protection and current limiting.
