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TPS731 - 产品图解:
TPS731-具有反向电流保护的电容、NMOS、150mA 低压降稳压器
TI产品 - TPS731介绍
TPS731 - 具有反向电流保护的无电容、NMOS、150mA 低压降稳压器

TPS731是TI公司的一款单通道LDO产品,TPS731是具有反向电流保护的无电容、NMOS、150mA 低压降稳压器,本页介绍了TPS731的产品说明、应用、特性等,并给出了与TPS731相关的TI元器件型号供参考。

TPS731 - 具有反向电流保护的无电容、NMOS、150mA 低压降稳压器 - 单通道LDO - 线性稳压器(LDO) - TI公司(Texas Instruments,德州仪器)


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 ESR, and even allows operation without a capacitor. It 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 under 1µA and ideal for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is ideal for powering VCOs. These devices are protected by thermal shutdown and foldback current limit.


  • Stable with No Output Capacitor or Any Value or Type of Capacitor
  • Input Voltage Range of 1.7V to 5.5V
  • Ultralow Dropout Voltage: 30mV Typ
  • Excellent Load Transient Response—with or without Optional Output Capacitor
  • New NMOS Topology Provides Low Reverse Leakage Current
  • Low Noise: 30µVRMS Typ (10kHz to 100kHz)
  • 0.5% Initial Accuracy
  • 1% Overall Accuracy over Line, Load, and Temperature
  • Less Than 1µA Max IQ in Shutdown Mode
  • Thermal Shutdown and Specified Min/Max Current Limit Protection
  • Available in Multiple Output Voltage Versions
    • Fixed Outputs of 1.20V to 5.0V
    • Adjustable Outputs from 1.20V to 5.5V
    • Custom Outputs Available
    • Portable/Battery-Powered Equipment
    • Post-Regulation for Switching Supplies
    • Noise-Sensitive Circuitry such as VCOs
    • Point of Load Regulation for DSPs, FPGAs, ASICs, and Microprocessors

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