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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 500MA DPAK
- 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)：1.3V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：2 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：Automotive
- Qualification：AEC-Q100
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Overview
The LF25ABDT-TRY is a fixed low dropout (LDO) voltage regulator from STMicroelectronics, providing a stable 2.5V output with a maximum load current of 500 mA. It operates within an input voltage range of 3 V to 16 V and features a typical dropout voltage of 0.45 V at full load. The device incorporates an inhibit function for power management. Quiescent current is typically 50 μA in OFF mode and 500 μA in ON mode. It is housed in a TO-252-3 package.
Feature Summary
- Very low dropout voltage capability
- Integrated inhibit control function
- Low quiescent current consumption
Applications
- Battery-powered portable devices
- Embedded systems requiring stable 2.5V logic rails
- Power management circuits with shutdown requirements
Procurement Notes
Verify the suffix 'TRY' indicates the specific tape-and-reel packaging configuration and inhibit feature variant. Confirm the TO-252-3 package type matches your PCB footprint. Ensure the 2.5V fixed output aligns with system voltage requirements. Check thermal dissipation capabilities for your specific application load.
Selection Notes
Select this component when a fixed 2.5V output is required with low dropout performance under high load conditions. The inhibit pin allows for system-wide power saving modes. Consider the TO-252-3 package for surface-mount assembly. Verify input voltage does not exceed the 16 V maximum rating.
Part Context
This part belongs to the LFxx series of very low drop voltage regulators by STMicroelectronics. It is designed for applications requiring efficient linear regulation with minimal voltage loss between input and output. The series offers various fixed output voltages and packages to suit different power management needs.
Replacement Considerations
Direct substitutes include other LF25ABDT variants with compatible pinouts and electrical characteristics. Verify that alternative LDOs match the 500 mA current rating and 0.45 V dropout specification. Ensure any replacement also supports the inhibit function if required by the design.
