TPS731 - Texas Instruments

TPS731 150-mA Low Dropout Regulator

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 g.

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 .