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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 1A 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)：0.5V @ 1A
- Current - Output：1A
- Current - Quiescent (Iq)：800 µA
- Current - Supply (Max)：-
- PSRR：60dB ~ 45dB (120Hz ~ 100kHz)
- Control Features：Enable, Power Good
- Protection Features：Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Supplier Device Package：PPAK
- Grade：-
- Qualification：-
Download product information
Overview
The LDF25PT-TR is a fixed-output linear voltage regulator manufactured by STMicroelectronics. It provides a nominal output voltage of 2.5 V with a maximum output current capability of 1 A. The device operates within an input voltage range from 2.6 V to 16 V and features a maximum dropout voltage of 0.5 V at full load. It is housed in a PPAK surface-mount package, measuring approximately 6.6 mm by 2.4 mm. The regulator supports a junction temperature range from -40 °C to +125 °C and includes internal protection mechanisms.
Feature Summary
- Fixed 2.5 V output voltage with high accuracy
- High current capability up to 1 A
- Low dropout voltage for efficient operation
- Integrated thermal and current limiting protection
Applications
- Portable battery-powered equipment
- Embedded systems requiring stable low-voltage rails
- Industrial control modules
- Communication infrastructure power supplies
Procurement Notes
Verify the specific datasheet revision and ordering code suffix when sourcing. Confirm that the PPAK package variant matches the footprint requirements of the target PCB design. Ensure compliance with RoHS directives if required by the end product specifications. Cross-reference the manufacturer's official documentation for any updates on lead times or availability status.
Selection Notes
Select this component when a precise 2.5 V rail is needed with moderate current demands. The low dropout characteristic makes it suitable for applications where the input voltage is close to the output level. Consider the thermal performance in the final enclosure design due to the 1 A current capability. Verify that the input voltage does not exceed the 16 V absolute maximum rating under all operating conditions.
Part Context
This part belongs to STMicroelectronics' LDO regulator portfolio, designed for power management in compact electronic devices. The PPAK package offers a balance between thermal dissipation and small form factor, making it ideal for space-constrained designs. It complements other PMIC solutions by providing dedicated, clean power rails for sensitive analog or digital circuits.
FAQ
What is the maximum input voltage for the LDF25PT-TR?
The maximum input voltage is 16 V.
Does the LDF25PT-TR include short-circuit protection?
Yes, the device incorporates internal current limiting and thermal shutdown protection.
