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TPS731
SBVS034N – SEPTEMBER 20...
Product Folder
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Technical Documents
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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...