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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 3A D2PAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：14V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 3A
- Current - Output：3A
- Current - Quiescent (Iq)：50 mA
- Current - Supply (Max)：100 mA
- PSRR：70dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：D2PAK
- Grade：-
- Qualification：-
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Overview
The LD29300D2T25R is a fixed-output low-dropout voltage regulator from STMicroelectronics, providing a nominal 2.5V output with ±1% tolerance at 25°C. It supports a guaranteed continuous output current of up to 3A and features a typical dropout voltage of 0.4V at full load. The device includes internal current limiting and thermal shutdown protection. It operates within an input voltage range of 2.5V to 30V and functions across a junction temperature range of -40°C to 125°C.
Feature Summary
- High accuracy regulation with tight output voltage tolerance
- Very low dropout voltage for efficient power management under high loads
- Integrated electronic protection against overcurrent and overheating
Applications
- Power supply switching post-regulation
- Series power supplies for monitors and televisions
- Computer systems requiring stable voltage rails
- Battery-powered equipment needing extended runtime
Procurement Notes
Verify the specific package type matches the D2PAK form factor indicated by the model suffix. Confirm that the fixed 2.5V output aligns with circuit requirements. Ensure the ordering code corresponds to the standard tape and reel configuration if automated assembly is planned. Cross-reference the manufacturer part number directly with official documentation to avoid counterfeit components.
Selection Notes
Select this component when a high-current linear regulator with minimal voltage drop is required. The fixed 2.5V output eliminates external resistor networks, simplifying design. Consider the thermal resistance characteristics for heat dissipation in enclosed environments. Verify that the input voltage remains within the specified operational limits to ensure stability and prevent automatic shutdown.
Part Context
This device belongs to the LD29300 series of very low dropout voltage regulators designed for high-current applications. The series offers various fixed output voltages and adjustable versions. The D2T25 suffix specifically denotes the D2PAK surface-mount package with a fixed 2.5V output. This series is engineered for efficiency in battery-powered and portable electronics.
Replacement Considerations
Compatible substitutes include other LD29300 variants with different output voltages or packages, such as LD29300D2M25R for the same voltage in a P2PAK package. Ensure any replacement maintains the 3A current capability and compatible pinout for direct integration without PCB redesign.
