TPS73201QDRBRQ1 TI • Qualified for Automotive Applications • AEC-Q100 Qualified With the Following Results – Device Temperature Grade 0: –40°C to 150°C Ambient Operating Temperature Range – Device HBM Classification Level 2 – Device CDM Classification Level C4B – Device MM Classification Level M2 • Stable With No Output Capacitor or Any Value or Type of Capacitor • Input Voltage Range: 1.7 V to 5.5 V • Ultra-Low Dropout Voltage: 40-mV Typical at 250 mA • Excellent Load Transient Response—With or Without Optional Output Capacitor • New NMOS Topology Provides Low Reverse Leakage Current • Low Noise: 30-μVRMS Typical (10 kHz to 100 kHz) • 0.5% Initial Accuracy • 1% Overall Accuracy (Line, Load, and Temperature) • Less Than 1-μA Maximum IQ in Shutdown Mode • Thermal Shutdown and Specified Minimum and Maximum Current Limit Protection • Available in Multiple Output Voltage Versions – Fixed Outputs of 1.2 V, 1.5 V, 1.6 V, 1.8 V, 2.5 V, 3 V, 3.3 V, and 5 V – Adjustable Outputs From 1.2 V to 5.5 V – Custom Outputs Available 2 Applications • Portable and Battery-Powered Equipment • Post-Regulation for Switching Supplies • Noise-Sensitive Circuitry Such as VCOs • Point of Load Regulation for DSPs, FPGAs, ASICs, and Microprocessors 3 Description The TPS732-Q1 family of low-dropout (LDO) voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This topology is stable using output capacitors with low ESR, and even allows operation without a capacitor. The topology also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current. The TPS732-Q1 family of devices uses an advanced BiCMOS process to yield high precision while delivering low dropout voltages and low ground pin current. Current consumption, when not enabled, is under 1 μA and ideal for portable applications. The extremely low output noise (30 μVRMS with 0.1-µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.