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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 800MA PPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Tape & Reel (TR),Cut Tape (CT),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.3V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：2.5 mA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Short Circuit
- 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 LD39080PT25-R is an ultra low drop BiCMOS voltage regulator manufactured by STMicroelectronics. It provides a guaranteed output current of 0.8 A with an input voltage range from 2.5 V to 6 V. The device features an adjustable output voltage from 1.22 V to 5.0 V, achieving a typical dropout voltage of 150 mV at 0.8 A load and 20 mV at 150 mA load. Quiescent current is typically 1 mA at full load and drops to a maximum of 1 µA in off mode. It includes logic-controlled electronic shutdown, internal current and thermal limits, and operates within a temperature range of -40 °C to 125 °C.
Feature Summary
- Ultra low dropout performance ensures high efficiency under varying load conditions
- Logic-controlled electronic shutdown minimizes power consumption during inactive periods
- Integrated short-circuit and thermal protection safeguards against operational faults
Applications
- Microprocessor power supply
- DSP power supply
- Post regulators for switching suppliers
Procurement Notes
Verify the specific suffix 'PT25' against official documentation to confirm fixed output configuration versus the standard adjustable version. Confirm RoHS compliance status and check for end-of-life or obsolescence notices prior to finalizing procurement plans.
Selection Notes
Select this component for applications requiring precise low-voltage regulation with minimal heat dissipation. Ensure external capacitors meet stability requirements regarding capacitance and ESR values as specified in the datasheet application notes.
Part Context
This part belongs to the LD39080 series of ultra low drop linear regulators developed on a BiCMOS process. The series is designed for low noise and fast dynamic response, making it suitable for sensitive analog and digital circuits requiring stable power delivery.
Replacement Considerations
Consult official substitution lists for compatible LDOs with similar current ratings and package types. Verify pinout compatibility and electrical parameter alignment before implementing any alternative components.
