RC1587M15

Overview

The RC1587M15 is a fixed positive low dropout linear regulator manufactured by Fairchild Semiconductor. It provides a stable 1.5V output voltage with a maximum continuous output current of 3A. The device features a typical dropout voltage of 1.15V and a maximum dropout of 1.3V at full load. It supports a maximum input voltage of 7V and operates within a junction temperature range of 0°C to +125°C. The unit is housed in a TO-263 (D2PAK) surface-mount package, offering high power dissipation capabilities suitable for compact designs.

Feature Summary

• Delivers a fixed 1.5V regulated output voltage
• Supports up to 3A continuous output current
• Optimized for low voltage applications requiring fast transient response

Applications

• VTT bus termination circuits
• Low voltage point-of-load regulation
• Portable electronic devices requiring efficient power management

Procurement Notes

Verify the manufacturer origin as Fairchild Semiconductor or its successor entities. Confirm the specific suffix indicates the 1.5V fixed output variant. Ensure the package matches the required TO-263 footprint. Check for obsolescence status as legacy components may have limited availability.

Selection Notes

Select this component when a fixed 1.5V rail is required with high current capability. Ensure the input voltage does not exceed 7V. Verify thermal requirements for the TO-263 package under expected load conditions. Consider the dropout voltage margin relative to the minimum input supply.

Part Context

This part belongs to the RC1587 series of 3A low dropout regulators. It shares architectural similarities with other variants like the RC1587M33 but differs in output voltage configuration. The series is designed for applications demanding stability and efficiency in low-voltage environments.

Replacement Considerations

Direct substitutes include RC1587M15 from other manufacturers with identical pinouts and specifications. Cross-reference with RC1587T-1.5 for through-hole alternatives if PCB layout allows.