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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 LF50CPT-TR is a positive fixed linear voltage regulator from STMicroelectronics, delivering a nominal 5V output with a maximum continuous current of 500mA. It operates within an input voltage range up to 16V and features a typical dropout voltage of 0.7V at full load. The device incorporates internal protection mechanisms including overcurrent limiting and thermal shutdown. It is housed in a surface-mount PPAK (TO-252-5) package, suitable for automated assembly. The component supports an operating temperature range from -40°C to +125°C and maintains a low quiescent current of approximately 1mA.
Feature Summary
- Integrated overcurrent and thermal shutdown protection for enhanced circuit reliability
- Fixed 5V output configuration simplifies power supply design
- Surface-mount PPAK package facilitates compact PCB layout
Applications
- General-purpose power management in embedded systems
- Battery-powered devices requiring efficient voltage regulation
- Industrial control equipment power supplies
Procurement Notes
Verify the specific suffix TR indicates tape-and-reel packaging when ordering. Confirm the manufacturer part number matches exactly to ensure compatibility with existing BOMs. Check RoHS compliance status as required by regional regulations. Validate that the PPAK footprint aligns with the target PCB design before procurement.
Selection Notes
Select this component when a stable 5V rail is needed for loads up to 500mA. Ensure the input voltage does not exceed 16V to prevent damage. Consider the thermal performance in the final enclosure due to the PPAK package's heat dissipation characteristics. Verify that the fixed output voltage meets the downstream circuit requirements without need for external adjustment resistors.
Part Context
This part belongs to the LFxx series of low-dropout regulators manufactured by STMicroelectronics. It is designed for applications requiring simple, cost-effective voltage regulation with built-in safety features. The PPAK package variant offers a balance between thermal performance and space efficiency compared to traditional through-hole options.
Replacement Considerations
Direct pin-to-pin replacements may include other 5V LDOs in TO-252 packages from different manufacturers, provided electrical specifications such as dropout voltage and current rating are compatible. Always verify thermal resistance values and protection feature implementations before substituting.
