TPS73133

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS731 SBVS034N – SEPTEMBER 2003 – REVISED DECEMBER 2015 TPS731xx Capacitor-Free, NMOS, 150-mA Low Dropout Regulator With Reverse Current Protection 1 Features 1 Stable With or Without Capacitors of All Types Input Voltage Range of 1.7 V to 5.5 V Ultralow Dropout Voltage: 30 mV Typical (150-mA Load) 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 Over 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 1.20 V to 5 V – Adjustable Outputs from 1.2 V to 5.5 V – Custom Outputs Available 2 Applications Smart Grid and Energy Building Automation Set-Top Boxes Medical Equipment Test and Measurement Point-of-Sale Terminals Wireless Infrastructure 3 Description The TPS731xx family of low-dropout (LDO) linear voltage regulators uses a new topology: an NMOS pass element in a voltage-follower configuration. This topology is stable using output capacitors with low equivalent series resistance (ESR), and even allows operation without a capacitor. The device also provides high reverse blockage (low reverse current) and ground pin current th...