TPS731中文资料具有反向电流保护和使能功能的 150mA、高精度、超低压降稳压器数据手册TI规格书

描述 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 that is nearly constant over all values of output current.

The TPS731xx uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is less than 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.

特性 Features

• Stable With or Without Capacitors of All Types
• Ultralow Dropout Voltage: 30 mV Typical (150-mA Load)
• New NMOS Topology Provides Low Reverse Leakage Current
• 0.5% Initial Accuracy
• Less Than 1-µA Maximum IQ in Shutdown Mode
• Available in Multiple Output Voltage Versions
• Adjustable Outputs from 1.2 V to 5.5 V
• APPLICATIONS
• Building Automation
• Medical Equipment
• Point-of-Sale Terminals
• Wireless Infrastructure

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