TCR3LM25A,RF

Overview

The TCR3LM25A,RF is a fixed-output Low Dropout (LDO) linear voltage regulator manufactured by Toshiba Semiconductor and Storage. It provides a stable 2.5 V output with a maximum load current of 300 mA. The device operates within an input voltage range of 1.3 V to 5.5 V and features a typical power supply rejection ratio (PSRR) of 75 dB. Key electrical characteristics include a quiescent current of 86 uA, a maximum dropout voltage of 262 mV, and line regulation of 1 mV. It offers high accuracy with a voltage regulation tolerance of 1%. The component is designed for surface mount installation in DFN-4 packages and supports operation across a temperature range of -40°C to +85°C.

Feature Summary

• CMOS-based single-output architecture with integrated on/off control input
• Ultra-low quiescent current consumption for extended battery life
• High ripple rejection performance suitable for noise-sensitive circuits
• Built-in protection mechanisms including over-current and thermal shutdown

Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems utilizing low-dropout regulation
• Noise-sensitive analog signal processing circuits
• Embedded systems with strict power consumption constraints

Procurement Notes

Verify the specific suffix 'RF' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the required operating temperature range and input voltage parameters. Cross-reference the part number with authorized distributors to confirm current availability and authenticity. Check for any recent design changes or obsolescence notices from Toshiba Semiconductor and Storage before finalizing procurement plans.

Selection Notes

Select this component when a fixed 2.5 V output is required with minimal static power draw. The low dropout characteristic makes it suitable for applications where the input voltage is close to the output level. Consider the DFN-4 package size for space-constrained designs. Verify that the 300 mA output current meets the load requirements and that the thermal performance under expected ambient conditions is adequate without additional heatsinking.

Part Context

This LDO belongs to Toshiba's series of low-power voltage regulators designed for portable electronics. It complements other variants in the family offering different fixed output voltages while maintaining similar pinouts and protection features. The device addresses the need for efficient power conversion in mobile and IoT applications where battery longevity and compact form factors are critical design drivers.

Replacement Considerations

Consult Toshiba's official documentation for direct pin-compatible alternatives within the same series. Verify that substitute parts match the 2.5 V output, 300 mA current rating, and 86 uA quiescent current specifications. Ensure replacement components maintain the same DFN-4 package dimensions and thermal characteristics for seamless integration.