TPS73433-Q1

TPS73433-Q1 TPS73401-Q1 www.ti.com SBVS185 – DECEMBER 2011 250mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low-Dropout Linear Regulator Check for Samples: TPS73433-Q1, TPS73401-Q1 FEATURES 1 Qualified for Automotive Applications 250mA Low Dropout Regulator with EN Low IQ: 44μA Multiple Output Voltage Versions Available: – Fixed 3.3V Outputs – Adjustable Outputs from 1.25V to 6.2V High PSRR: 60dB at 1kHz Ultra-Low Noise: 28μVRMS Fast Start-Up Time: 45μs Stable with a Low-ESR, 2.0μF Typical Output Capacitance Excellent Load/Line Transient Response 2% Overall Accuracy (Load/Line/Temp) ThinSOT-23 Package DESCRIPTION The TPS734xx-Q1 family of low-dropout (LDO), low-power linear regulators offers excellent ac performance with very low ground current. High power-supply rejection ratio (PSRR), low noise, fast start-up, and excellent line and load transient response are provided while consuming a very low 44μA (typical) ground current. The TPS734xx-Q1 is stable with ceramic capacitors and uses an advanced BiCMOS fabrication process to yield a typical dropout voltage of 125mV at 250mA output. The TPS734xx-Q1 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over all load, line, process, and temperature variations. It is fully specified from TA = –40°C to +105°C and is offered in a low-profile ThinSOT-23 package that are ideal for wireless handsets, printers, and WLAN cards. TPS73433TDDCRQ1 TSOT23-5 (TOP VIEW) TPS...