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Product Detailed Parameters
- Description：IC REG LINEAR 5V 500MA PPAK
- 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)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：12 mA
- PSRR：76dB ~ 60dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- 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 LF50ABPT-TR is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a stable 5 V output with a maximum continuous current of 500 mA. The device operates within an input voltage range up to 16 V and features a typical dropout voltage of 0.4 V at full load. Quiescent current ranges from 1 mA to 12 mA, ensuring efficient operation in power-sensitive designs. It maintains high accuracy with a tolerance of ±1%. The component is housed in a surface-mount TO-252-5 package and supports an operating temperature range from -40 °C to +125 °C.
Feature Summary
- Integrated on-off switch functionality for system power management
- Low quiescent current design suitable for battery-powered applications
- Very low dropout voltage capability for enhanced efficiency
- High thermal stability across extended industrial temperature ranges
Applications
- Battery-powered electronic systems requiring low noise
- Low-power embedded circuitry
- Voltage regulation for sensor interfaces
- Power supply stages in portable devices
Procurement Notes
Verify the specific suffix 'TR' indicates tape and reel packaging when sourcing components. Confirm RoHS compliance status as required by environmental regulations. Ensure the TO-252-5 footprint matches the target PCB layout dimensions. Validate that the 5V output variant aligns with the system's voltage requirements before procurement.
Selection Notes
Select this component when a fixed 5V rail is needed with moderate current demands up to 500 mA. The low dropout characteristic makes it suitable for inputs close to the output voltage. Consider the thermal performance in the TO-252-5 package for heat dissipation needs. Verify compatibility with the system's input voltage limits not exceeding 16 V.
Part Context
This part belongs to the LFXX series of low-dropout regulators from STMicroelectronics. The series offers various fixed output voltages optimized for low-noise and low-power applications. The LF50ABPT-TR specifically targets the 5V output segment, providing a reliable solution for stabilizing power supplies in compact electronic designs.
Replacement Considerations
Cross-reference with other LF50 variants such as LF50ABDT-TR for different package options like DPAK. Ensure substitute parts maintain the same 5V output and 500mA current rating. Verify pinout compatibility if replacing in existing designs.
