TCR3RM 300mA Low Dropout Regulators Toshiba TCR3RM 300mA Low Dropout Regulators are CMOS general-purpose single-output voltage regulators with an on/off control input. The TCR3RM provides a low output voltage noise and ultra-high ripple rejection ratio. The LDOs are offered in fixed output voltages between 0.9V and 4.5V and can drive up to 300mA. The devices support overcurrent protection, thermal shutdown, and auto discharge.