TCR3RM12A,LF(SE

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

The TCR3RM12A,LF(SE is a CMOS Low Dropout Regulator manufactured by Toshiba Semiconductor and Storage. It provides a fixed positive output voltage of 1.2 V with a maximum output current of 300 mA. The device operates within an input voltage range of 1.8 V to 5.5 V. Key electrical specifications include a typical power supply rejection ratio (PSRR) of 100 dB at 1 kHz, a maximum dropout voltage of 220 mV, and a quiescent current of 7 uA. Power dissipation is rated at 420 mW. The regulator features line regulation of 0.025 %/V and load regulation of 12 mV. It is designed for operation between -40°C and +85°C.

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

• Ultra-low quiescent current consumption of 7 uA for extended battery life in portable devices.
• High power supply rejection ratio (PSRR) of 100 dB to minimize noise from input sources.
• Integrated auto-discharge function to rapidly reduce output voltage when the enable signal is deactivated.
• Compact surface-mount packaging suitable for space-constrained mobile equipment designs.

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

• Mobile phones and smartphones
• Portable electronic devices
• Battery-powered consumer electronics

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

Verify the specific suffix (SE) against the manufacturer's official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the component meets RoHS3 compliance requirements for your target market. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.

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

Select this regulator for applications requiring low noise and high PSRR in compact form factors. The 1.2 V output is suitable for powering digital logic or memory components. Consider the 300 mA current limit and 420 mW power dissipation rating relative to thermal constraints in the final enclosure design.

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

This component belongs to Toshiba's TCR3RM series of low-dropout regulators. These devices are engineered specifically for mobile equipment and portable applications where power efficiency and small footprint are critical. The series utilizes CMOS technology to achieve low static current while maintaining stable regulation under varying load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Check for direct pin-compatible substitutes within the same Toshiba family, such as other voltage variants in the TCR3RM series. Verify that alternative LDOs match the 300 mA output current, 1.2 V output voltage, and 4-DFNC package dimensions.

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

What is the typical PSRR of the TCR3RM12A,LF(SE?

The typical power supply rejection ratio is 100 dB at 1 kHz.

Does this regulator include an auto-discharge feature?

Yes, the TCR3RM12A includes an auto-discharge function to quickly reduce the output voltage when disabled.