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线性和低压降 (LDO) 稳压器

TPS73801

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具有反向电流和电压保护功能的 1A、20V、可调节低压降稳压器

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TPS73801

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产品详情

Output options Adjustable Output Iout (max) (A) 1 Vin (max) (V) 20 Vin (min) (V) 2.2 Vout (max) (V) 20 Vout (min) (V) 1.2 Rating Catalog Noise (µVrms) 45 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 51 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse current protection, Reverse voltage protection Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
Output options Adjustable Output Iout (max) (A) 1 Vin (max) (V) 20 Vin (min) (V) 2.2 Vout (max) (V) 20 Vout (min) (V) 1.2 Rating Catalog Noise (µVrms) 45 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 51 Load capacitance (min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse Current Protection, Reverse current protection, Reverse voltage protection Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 300 Operating temperature range (°C) -40 to 125
SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06
  • Optimized for fast transient response
  • Output current: 1.0A
  • Dropout voltage: 300mV
  • Low noise: 45µVRMS (10Hz to 100kHz)
  • Quiescent current: 1mA
  • No protection diodes needed
  • Controlled quiescent current in dropout
  • Adjustable output voltage: 1.21V to 20V
  • Less than 1µA quiescent current in shutdown
  • Stable with 10µF output capacitor
  • Stable with ceramic capacitors
  • Reverse-battery protection
  • No reverse current
  • Thermal limiting
  • Optimized for fast transient response
  • Output current: 1.0A
  • Dropout voltage: 300mV
  • Low noise: 45µVRMS (10Hz to 100kHz)
  • Quiescent current: 1mA
  • No protection diodes needed
  • Controlled quiescent current in dropout
  • Adjustable output voltage: 1.21V to 20V
  • Less than 1µA quiescent current in shutdown
  • Stable with 10µF output capacitor
  • Stable with ceramic capacitors
  • Reverse-battery protection
  • No reverse current
  • Thermal limiting

The TPS73801 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply 1.0A of output current with a dropout voltage of 300mV. Operating quiescent current is 1mA, dropping to less than 1µA in shutdown. Quiescent current is well controlled and does not rise in dropout, which occurs with many other regulators. In addition to fast transient response, the TPS73801 regulators have very low output noise, which makes them designed for sensitive RF supply applications.

Output voltage range is from 1.21V to 20V. The TPS73801 regulators are stable with output capacitors as low as 10µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available as an adjustable device with a 1.21V reference voltage. The TPS73801 regulators are available in the 6-pin TO-223 (DCQ) packages.

The TPS73801 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply 1.0A of output current with a dropout voltage of 300mV. Operating quiescent current is 1mA, dropping to less than 1µA in shutdown. Quiescent current is well controlled and does not rise in dropout, which occurs with many other regulators. In addition to fast transient response, the TPS73801 regulators have very low output noise, which makes them designed for sensitive RF supply applications.

Output voltage range is from 1.21V to 20V. The TPS73801 regulators are stable with output capacitors as low as 10µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available as an adjustable device with a 1.21V reference voltage. The TPS73801 regulators are available in the 6-pin TO-223 (DCQ) packages.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS73801 1.0A, Low-Noise, Fast-Transient-Response, Low-Dropout Regulator 数据表 (Rev. D) PDF | HTML 2025年 6月 9日
应用手册 Hybrid Battery Charger with Load Control for Telecom Equipments (Rev. A) 2018年 5月 9日

设计和开发

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评估板

DEM-SOT223LDO — 采用 SOT223 (DCQ) 封装与大多数正输出 LDO 兼容的 DEM-SOT223LDO

The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs).  This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.

用户指南: PDF
TI.com 上无现货
参考设计

TIDA-00420 — 基于 ADC、数字隔离、宽输入、16 通道、交流/直流二进制输入参考设计

此参考设计展示了一种经过成本优化、基于可扩展 ADC 且具有增强型隔离功能的交流/直流二进制输入模块 (BIM) 架构。10 位或 12 位 SAR ADC 的 16 个通道用于感应多个二进制输入。运算放大器除了使每通道成本保持较低之外，还为每个输入提供了出色的信号调节。数字隔离器（基础型或增强型）用于隔离主机 MCU 或处理器。支持对温度、湿度和磁场的测量以用于诊断。具有可配置输出的增强型隔离直流/直流电源可为二进制模块提供所需的电源。
设计指南: PDF
原理图: PDF
参考设计

TIDA-010055 — 适用于保护继电器模块且具有诊断功能的非隔离式电源架构参考设计

该参考设计展示了适用于具有模拟输入/输出和通信模块的保护继电器的非隔离式电源架构，这些模块通过 5V、12V 或 24V 直流输入生成。为了生成电源，该设计针对尺寸和设计时间受限的应用使用带集成 FET 的直流/直流转换器和带集成电感器的电源模块，并针对需要低 EMI 和线性稳压器 (LDO) 以实现低纹波的应用采用 HotRod™ 封装类型。保护措施包括用于输入瞬态保护的平缓钳位 TVS，用于过载保护且具有可配置负载电流的电子保险丝，以及用于输入反转保护的理想二极管控制器。其他功能包括自动切换电源多路复用器、模拟温度传感器、输入正常指示、“空载”检测和电压监控器。
设计指南: PDF
原理图: PDF
封装 引脚 CAD 符号、封装和 3D 模型
SOT-223 (DCQ) 6 Ultra Librarian
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订购和质量

包含信息：
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  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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