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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 500MA PPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- 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：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Supplier Device Package：PPAK
- Grade：-
- Qualification：-
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Overview
The LF25CPT-TR is a fixed-output low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a stable 2.5 V output with a maximum continuous current of 0.5 A. The device features a very low dropout voltage, typically 0.45 V, and a low quiescent current, making it suitable for power-sensitive designs. It operates within an input voltage range of -0.5 V to 40 V and supports a wide operating temperature range from -40 °C to +125 °C. The component is housed in a surface-mount TO-252-5 package.
Feature Summary
- Very low dropout voltage characteristic enabling efficient regulation under minimal headroom conditions
- Low quiescent current consumption optimized for battery-powered and energy-efficient applications
- Integrated thermal protection mechanisms to ensure safe operation during overload events
Applications
- Battery-powered portable electronic systems requiring stable low-voltage rails
- Low-noise analog circuit power supplies
- General-purpose DC-to-DC step-down regulation in compact form factors
Procurement Notes
Verify the specific suffix and package variant against the manufacturer's official datasheet to ensure compatibility with design requirements. Confirm that the ordering information matches the exact electrical specifications and thermal performance needed for the target application environment.
Selection Notes
Select this component when a fixed 2.5 V rail is required with high efficiency and minimal voltage drop. Consider the thermal dissipation capabilities of the TO-252-5 package relative to the expected load current and ambient temperature conditions to ensure reliable long-term operation.
Part Context
This part belongs to the LFXX series of low-dropout regulators from STMicroelectronics. The series offers various fixed output voltages designed for low-power applications. The LF25CPT-TR specifically targets the 2.5 V output segment, providing a balance between performance and power consumption for embedded systems.
Replacement Considerations
Check for direct pin-compatible alternatives within the same LF series or other LDO families offering identical 2.5 V output and 0.5 A current capability. Ensure thermal resistance and package dimensions match the existing PCB layout constraints.
