LD59015C25R

Overview

The LD59015C25R is a fixed-output linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 2.5 V with a maximum output current of 150 mA. The device operates within an input voltage range of 2.4 V to 5.5 V and features a typical dropout voltage of 150 mV. Key electrical parameters include a quiescent current of 60 µA, power supply rejection ratio (PSRR) ranging from 76 dB at 1 kHz to 54 dB at 100 kHz, and an operating temperature range of -40°C to 125°C. It is housed in a SOT-323-5 surface-mount package.

Feature Summary

• Logic-controlled electronic shutdown function for low-power applications
• High power supply rejection ratio suitable for noise-sensitive circuits
• Internal short-circuit constant current limiting and thermal protection

Applications

• Mobile phones
• Personal digital assistants (PDAs)
• Cordless phones
• Battery-powered systems

Procurement Notes

Verify the specific suffix 'C25R' against official STMicroelectronics documentation to confirm the 2.5 V fixed output voltage and SOT-323-5 packaging configuration. Ensure compatibility with design requirements regarding input voltage limits and thermal management before procurement.

Selection Notes

Select this component for designs requiring a stable 2.5 V rail from a single-cell battery source or similar low-voltage input. Consider its low quiescent current and high PSRR for RF sections or sensitive analog circuits where noise immunity and battery life are critical constraints.

Part Context

This part belongs to the LD59015 family of low-noise, high PSRR linear voltage regulators. The family offers various fixed output voltages in 100 mV steps from 1.2 V to 3.3 V, all sharing the same 150 mA current capability and SOT-323-5 package form factor for consistent board layout across different voltage rails.

Replacement Considerations

Publicly confirmed substitute part numbers for the LD59015C25R were not found in the provided source material.