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线性和低压降 (LDO) 稳压器

TPS74301

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具有电源正常指示功能的 1.5A、低输入电压 (0.8V)、高精度、可调节超低压降稳压器

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TPS74301

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产品详情

Output options Adjustable Output, Tracking Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 20 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 20 Rating Catalog Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 1 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 55 Operating temperature range (°C) -40 to 85
Output options Adjustable Output, Tracking Output Iout (max) (A) 1.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Noise (µVrms) 20 Iq (typ) (mA) 3 Thermal resistance θJA (°C/W) 20 Rating Catalog Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 1 PSRR at 100 KHz (dB) 45 Dropout voltage (Vdo) (typ) (mV) 55 Operating temperature range (°C) -40 to 85
TO-263 (KTW) 7 153.924 mm² 10.1 x 15.24 VQFN (RGW) 20 25 mm² 5 x 5
  • Track Pin Allows for Flexible Power-Up Sequencing
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.9V with External Bias Supply
  • Adjustable Output (0.8V to 3.6V)
  • Fixed Output (0.9V to 3.6V)
  • Ultra-Low Dropout: 55mV at 1.5A (typ)
  • Stable with Any or No Output Capacitor
  • Excellent Transient Response
  • Available in 5mm × 5mm × 1mm QFN and DDPAK-7 Packages
  • Open-Drain Power-Good (5 × 5 QFN)
  • Active High Enable
  • APPLICATIONS
    • FPGA Applications
    • DSP Core and I/O Voltages
    • Post-Regulation Applications
    • Applications with Special Start-Up Time or Sequencing Requirements

All other trademarks are the property of their respective owners
  • Track Pin Allows for Flexible Power-Up Sequencing
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.9V with External Bias Supply
  • Adjustable Output (0.8V to 3.6V)
  • Fixed Output (0.9V to 3.6V)
  • Ultra-Low Dropout: 55mV at 1.5A (typ)
  • Stable with Any or No Output Capacitor
  • Excellent Transient Response
  • Available in 5mm × 5mm × 1mm QFN and DDPAK-7 Packages
  • Open-Drain Power-Good (5 × 5 QFN)
  • Active High Enable
  • APPLICATIONS
    • FPGA Applications
    • DSP Core and I/O Voltages
    • Post-Regulation Applications
    • Applications with Special Start-Up Time or Sequencing Requirements

All other trademarks are the property of their respective owners

The TPS743xx low-dropout (LDO) linear regulators provide an easy-to-use robust power management solution for a wide variety of applications. The TRACK pin allows the output to track an external supply. This feature is useful in minimizing the stress on ESD structures that are present between the CORE and I/O power pins of many processors. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility allows the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors and the family is fully specified from –40°C to +125°C. The TPS743xx is offered in a small (5mm × 5mm) QFN package, yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK (KTW) package is also available.

The TPS743xx low-dropout (LDO) linear regulators provide an easy-to-use robust power management solution for a wide variety of applications. The TRACK pin allows the output to track an external supply. This feature is useful in minimizing the stress on ESD structures that are present between the CORE and I/O power pins of many processors. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility allows the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors and the family is fully specified from –40°C to +125°C. The TPS743xx is offered in a small (5mm × 5mm) QFN package, yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK (KTW) package is also available.
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技术文档

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类型 项目标题 下载最新的英语版本 日期
* 数据表 1.5A Ultra-LDO with Programmable Sequencing 数据表 (Rev. K) 2010年 8月 10日
应用手册 LDO 噪声揭秘 (Rev. B) PDF | HTML 下载英文版本 (Rev.B) PDF | HTML 2020年 9月 16日
应用手册 A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
选择指南 Low Dropout Regulators Quick Reference Guide (Rev. P) 2018年 3月 21日
应用手册 LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017年 8月 9日
选择指南 低压降稳压器快速参考指南 (Rev. M) 下载最新的英文版本 (Rev.P) 2017年 1月 5日
应用手册 简化的 LDO PSRR 测量 下载最新的英文版本 (Rev.A) PDF | HTML 2010年 7月 28日
应用手册 Using New Thermal Metrics 2009年 12月 15日
模拟设计期刊 通过 TPS74x01 系列线性稳压器实现同步断电顺序 下载英文版本 2008年 8月 12日
模拟设计期刊 具有 80% 效率和 Plost < 1W 的 3A、1.2Vout 线性稳压器 下载英文版本 2008年 6月 25日
模拟设计期刊 Q3 2007 Issue Analog Applications Journal 2007年 8月 10日
EVM 用户指南 TPS74x01EVM-118 User's Guide 2006年 6月 20日

设计和开发

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评估板

TPS74301EVM-118 — TPS74301 评估模块

The TPS74301EVM-118 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPS74301 LDO linear regulator. The EVM uses the TPS74301, 1.5 A linear regulator with tracking and integrated power good (PG). Refer to the (...)

用户指南: PDF
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仿真模型

TPS74301 PSpice Transient Model (Rev. B)

SLIM015B.ZIP (62 KB) - PSpice Model
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仿真模型

TPS74301 TINA-TI Transient Reference Design

SLIM287.TSC (105 KB) - TINA-TI Reference Design
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仿真模型

TPS74301 TINA-TI Transient Spice Model

SLIM286.ZIP (36 KB) - TINA-TI Spice Model
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仿真模型

TPS74301 Unencrypted PSpice Transient Model

SBVM635.ZIP (2 KB) - PSpice Model
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原理图

5Vin Solution with 1.5-A Core Supply (Rev. A)

SLVR303A.PDF (196 KB)
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原理图

5V/12V Input DM6467 (x2) Power Ref Design Using a DCDC Controller & Converter

SLVR337.PDF (158 KB)
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封装 引脚数 下载
TO-263 (KTW) 7 了解详情
VQFN (RGW) 20 了解详情
应遵守 TI 的评估模块标准条款与条件.

订购和质量

包含信息：
  • RoHS
  • 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
  • 认证摘要
  • 持续可靠性监测

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