TCR8BM LDO Voltage Regulators Toshiba TCR8BM LDO (Low Dropout) Voltage Regulators are 800mA CMOS single-output voltage regulators with an on/off control input. These Voltage Regulators feature high PSRR, low inrush current, and fast load transient response. Toshiba TCR8BM Voltage Regulators use a secondary bias rail as a reference voltage, allowing an Ultra Low Dropout rating of 170mV (Typ.) at IOUT = 800mA ( 1.1V output, VBIAS = 3.3V).