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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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-TR is a low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 2.5V with a maximum output current capability of 0.5A. The device features a typical dropout voltage of 0.45V and operates within an input voltage range of -0.5V to 40V. It utilizes LDO topology and is designed for low-noise, low-power applications, particularly in battery-powered systems.
Feature Summary
- Provides a fixed 2.5V output voltage
- Supports up to 0.5A output current
- Features low dropout voltage of 0.45V
- Designed for low-noise and low-power operation
Applications
- Battery-powered systems
- Low-noise power supply circuits
- Low-power electronic devices
Procurement Notes
Verify the specific package type and tape-and-reel quantity when ordering. Confirm that the 2.5V fixed output matches system requirements. Ensure input voltage stays within the specified -0.5V to 40V range. Check for RoHS compliance documentation if required for your region. Validate thermal performance for your intended application environment.
Selection Notes
Select this component when a stable 2.5V rail is needed from higher or lower input voltages. Its low dropout characteristic allows efficient regulation even when the input voltage is close to the output. The low quiescent current makes it suitable for energy-constrained designs. Consider the 0.5A current limit for load requirements.
Part Context
This part belongs to the LFXX series of low-dropout regulators from STMicroelectronics. These regulators are available in various output voltages to suit different design needs. The series is characterized by low dropout voltage and low static current, making them ideal for portable and battery-operated equipment where efficiency and noise reduction are critical.
Replacement Considerations
Check for other LFXX series variants with different output voltages if 2.5V is not required. Verify pin compatibility with existing PCB layouts before substituting. Ensure the replacement maintains the same 0.5A current rating and low dropout specifications.
