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Product Detailed Parameters
- Description：IC REG LINEAR 5V 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.3V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：2 mA
- Current - Supply (Max)：12 mA
- PSRR：76dB ~ 60dB (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 LF50ABDT-TRY is a fixed-output linear voltage regulator manufactured by STMicroelectronics, delivering a nominal 5 V output with a maximum continuous current of 500 mA. It operates within an input voltage range up to 16 V and features a low dropout voltage of approximately 0.45 V at full load. The device incorporates internal protection mechanisms including thermal shutdown and overcurrent limiting. It is housed in a surface-mount DPAK (TO-252) package and is rated for operation across an extended temperature range from -40 °C to +125 °C.
Feature Summary
- Integrated on-off switch functionality for system power management
- Low quiescent current design optimized for battery-powered applications
- Built-in thermal shutdown and current limiting for robust operation
Applications
- Battery-powered electronic systems requiring low noise
- Low-power embedded circuits
- General-purpose DC-to-DC regulation
Procurement Notes
Verify the specific suffix 'TRY' against the manufacturer's official documentation to confirm the presence of the integrated on-off switch feature, as standard variants may lack this function. Ensure the ordering part number matches the exact package type and switching capability required for the design. Cross-reference the datasheet revision date to ensure compliance with current specifications.
Selection Notes
Select this component when a fixed 5 V rail is needed with minimal external components. The integrated switch allows for direct control of the power state, reducing board space compared to discrete solutions. Verify that the input voltage remains within the 16 V maximum limit and that thermal dissipation requirements are met within the operating temperature range.
Part Context
This device belongs to the LFxx series of very low drop regulators from STMicroelectronics. The series offers various fixed output voltages and is characterized by low dropout voltage and low static current. The LF50 variant specifically provides a stable 5 V output, making it suitable for powering digital logic and analog circuits in portable devices.
Replacement Considerations
LF50ABPT-TR: Similar LDO regulator but typically lacks the integrated on-off switch feature found in the ABDT-TRY variant. Verify pinout compatibility and functional differences before substitution.
