L4987CPT50TR

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The L4987CPT50TR is a fixed positive low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a stable 5V output with a maximum current capacity of 0.2A. The device features a typical dropout voltage of 0.7V at rated load, ensuring efficient regulation even when the input voltage is close to the output level. It is housed in a lead-free PPAK-5 surface-mount package designed for compact PCB layouts.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated inhibit and dropout control flag functionality
• Very low drop voltage operation for high efficiency
• Fixed positive output voltage regulation

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronics
• General-purpose power supply conditioning
• Low-noise analog circuit biasing

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix CPT50TR against the manufacturer's official datasheet to confirm the 5V fixed output and tape-and-reel packaging configuration. Ensure the ordering part number matches the exact electrical specifications and package type required for the design. Cross-reference with STMicroelectronics documentation to validate component authenticity and revision status before procurement.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a precise 5V rail is required from a slightly higher input source with minimal voltage loss. The 0.2A current rating suits low-power digital logic or sensor interfaces. Consider the PPAK-5 package for thermal management and space constraints. Verify that the input voltage range accommodates the system's minimum operating conditions while maintaining the specified dropout performance.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the L4987 family of very low drop voltage regulators. Variants within this series offer different fixed output voltages such as 3.0V, 3.3V, 8.7V, and 12V, all sharing similar regulatory characteristics and package styles. The family is designed for applications requiring stable voltage regulation with minimal external components and enhanced diagnostic flags.