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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 300MA SOT23-5
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.4V @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：120 µA
- PSRR：55dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LDK130M25R is a low-dropout linear voltage regulator manufactured by STMicroelectronics, designed for automotive applications. It provides a fixed positive output voltage of 2.5 V with a maximum output current of 300 mA. The device operates within an input voltage range of 1.9 V to 5.5 V and features a typical dropout voltage of 100 mV at 100 mA load. It exhibits a low quiescent current of 30 µA and includes logic-controlled shutdown functionality reducing consumption below 1 µA. The component is housed in a SOT-23-5L package and complies with AEC-Q100 Grade 1 standards.
Feature Summary
- AEC-Q100 qualified for automotive grade 1 reliability
- Logic-controlled electronic shutdown mode
- Compatible with ceramic output capacitors
- Integrated short-circuit and thermal protection
Applications
- Low-power battery-powered automotive systems
- Automotive sensor power supplies
- Infotainment system auxiliary rails
- Body control module regulation
Procurement Notes
Verify the specific suffix 'M' indicates the SOT-23-5L package configuration as documented for the LDK130 series. Confirm AEC-Q100 automotive qualification status matches project requirements. Ensure compatibility with standard surface-mount assembly processes for the specified package type. Cross-reference the exact part number against official STMicroelectronics catalogs to validate availability and revision status.
Selection Notes
Select this component when a fixed 2.5 V rail is required for automotive-grade circuits. The low quiescent current supports extended battery life in standby modes. Verify that the input voltage remains within the 1.9 V to 5.5 V operational window. Consider the SOT-23-5L footprint constraints during PCB layout design.
Part Context
The LDK130 series comprises low-noise LDO regulators optimized for automotive use. Variants differ primarily by output voltage and package style. The M suffix typically denotes the SOT-23-5L package variant within this family. Other options include DFN6 and SOT323-5L packages depending on thermal and space requirements.
Replacement Considerations
Direct substitutes include other LDK130 variants with identical SOT-23-5L packaging but different fixed output voltages, such as LDK130M28RY or LDK130M22RY, provided the circuit voltage requirement aligns.
