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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：12 mA
- PSRR：82dB ~ 65dB (120Hz ~ 10kHz)
- 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 LF25ABDT is a low-dropout (LDO) linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 2.5 V with a maximum output current capability of 0.5 A. The device operates within an input voltage range of -0.5 V to 40 V. Key electrical characteristics include a low dropout voltage of 0.45 V and low quiescent current, which contribute to high efficiency in power management applications.
Feature Summary
- Very low dropout voltage operation for efficient power conversion
- Low quiescent current consumption suitable for battery-powered systems
- Designed for low-noise and low-power application environments
Applications
- Battery-powered electronic systems
- Low-noise power supply circuits
- Low-power consumer electronics
Procurement Notes
Verify the specific package type and tape-and-reel configuration against the manufacturer's official datasheet before ordering. Confirm that the fixed 2.5 V output aligns with your system requirements. Ensure compatibility with the specified input voltage range and thermal dissipation needs for your intended operating environment.
Selection Notes
Select this component when a stable 2.5 V rail is required with minimal voltage drop across the regulator. The low quiescent current makes it appropriate for energy-constrained designs. Evaluate the thermal performance based on the load current and ambient temperature to ensure reliable operation within the specified junction temperature limits.
Part Context
This part belongs to the LFXX series of very low-drop regulators from STMicroelectronics. The series offers a wide range of fixed output voltages tailored for portable and battery-operated devices. The LF25ABDT specifically addresses applications requiring precise low-voltage regulation with high efficiency and minimal power loss.
Replacement Considerations
Consult the official STMicroelectronics documentation for direct pin-compatible alternatives within the LFXX family or other LDO series offering similar 2.5 V output and 0.5 A current capacity. Verify electrical parameters and package dimensions before substitution.
