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线性和低压降 (LDO) 稳压器

TPS797

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具有电源正常指示功能的 50mA、超低 IQ、低压降稳压器

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TPS745 正在供货 具有电源正常指示功能的 500mA、低 IQ、高精度、可调节超低压降稳压器 Alternative product offering lower noise and higher accuracy.

TPS797

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米6体育平台手机版_好二三四详情

Output options Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 3.3 Vout (min) (V) 1.8 Fixed output options (V) 1.8, 2.85, 3, 3.3 Rating Catalog Noise (µVrms) 600 Iq (typ) (mA) 0.001 Thermal resistance θJA (°C/W) 231 Load capacitance (min) (µF) 0.47 Regulated outputs (#) 1 Features Power good Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 105 Operating temperature range (°C) -40 to 85
Output options Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 3.3 Vout (min) (V) 1.8 Fixed output options (V) 1.8, 2.85, 3, 3.3 Rating Catalog Noise (µVrms) 600 Iq (typ) (mA) 0.001 Thermal resistance θJA (°C/W) 231 Load capacitance (min) (µF) 0.47 Regulated outputs (#) 1 Features Power good Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 105 Operating temperature range (°C) -40 to 85
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • 50-mA Low-Dropout Regulator
  • Ultra-Low 1.2-µA Quiescent Current at 10 mA
  • 5-Pin SC70 (DCK) Package
  • Integrated Power Good Output
  • Stable With Any Capacitor Greater Than 0.47 µF
  • Typical Dropout Voltage of 105 mV at 10 mA (TPS79733)
  • Over-Current Limitation
  • Operating Junction Temperature Range of –40°C to 85°C
  • 50-mA Low-Dropout Regulator
  • Ultra-Low 1.2-µA Quiescent Current at 10 mA
  • 5-Pin SC70 (DCK) Package
  • Integrated Power Good Output
  • Stable With Any Capacitor Greater Than 0.47 µF
  • Typical Dropout Voltage of 105 mV at 10 mA (TPS79733)
  • Over-Current Limitation
  • Operating Junction Temperature Range of –40°C to 85°C

The TPS797xx family of low-dropout voltage regulators (LDOs) offers the benefits of low-dropout voltage and ultra-low-power operation. The device is stable with any capacitor greater than 0.47-µF. Therefore, implementations of this device require very little board space due to the miniaturized packaging and potentially small output capacitor. In addition, the family includes an integrated open drain active-high power good (PG) output. Intended for use in microcontroller-based, battery-powered applications, the TPS797xx family low dropout and ultra-low-power operation result in a significant increase in system battery operating life. The small packaging minimizes consumption of board space.

The device is enabled when the applied voltage exceeds the minimum input voltage. The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low (typically, 105 mV at 10-mA of load current), and is directly proportional to the load current. The quiescent current is ultra-low (1.2-µA, typically) and is stable over the entire range of output load current (0 mA to 50 mA). When properly configured with a pullup resistor, the PG output can implement a power-on reset or low-battery indicator.

The TPS797xx family of low-dropout voltage regulators (LDOs) offers the benefits of low-dropout voltage and ultra-low-power operation. The device is stable with any capacitor greater than 0.47-µF. Therefore, implementations of this device require very little board space due to the miniaturized packaging and potentially small output capacitor. In addition, the family includes an integrated open drain active-high power good (PG) output. Intended for use in microcontroller-based, battery-powered applications, the TPS797xx family low dropout and ultra-low-power operation result in a significant increase in system battery operating life. The small packaging minimizes consumption of board space.

The device is enabled when the applied voltage exceeds the minimum input voltage. The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low (typically, 105 mV at 10-mA of load current), and is directly proportional to the load current. The quiescent current is ultra-low (1.2-µA, typically) and is stable over the entire range of output load current (0 mA to 50 mA). When properly configured with a pullup resistor, the PG output can implement a power-on reset or low-battery indicator.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS797xx Ultra-Low IQ, 50-mA Low-Dropout Linear Regulators With Power Good Output in SC70 Package 数据表 (Rev. J) PDF | HTML 2016年 12月 23日
白皮书 Understanding the Foundations of Quiescent Current in Linear Power Systems 2021年 2月 18日
应用手册 LDO 噪声揭秘 (Rev. B) PDF | HTML 英语版 (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
应用手册 LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017年 8月 9日
应用手册 简化的 LDO PSRR 测量 最新英语版本 (Rev.A) PDF | HTML 2010年 7月 28日
EVM 用户指南 TPS79733EVM LDO Regulator Evaluation Module (Rev. A) 2003年 6月 2日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

TPS79733EVM — TPS79733 评估模块

The purpose of this EVM is to facilitate evaluation of the TPS797xx family of LDO regulators. Each EVM package contains an SLVP199 test board with a TPS79733DCK low dropout linear regulator as well as supporting passive components. Also, the board's small size and side clips facilitate attaching it (...)

用户指南: PDF
TI.com 上无现货
仿真模型

TPS79718 PSpice Transient Model

SLVMB49.ZIP (84 KB) - PSpice Model
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仿真模型

TPS79718 Unencrypted PSpice Transient Model

SLVMB50.ZIP (2 KB) - PSpice Model
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仿真模型

TPS797285 PSpice Transient Model

SLVMB55.ZIP (84 KB) - PSpice Model
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仿真模型

TPS797285 Unencrypted PSpice Transient Model

SLVMB56.ZIP (2 KB) - PSpice Model
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仿真模型

TPS79730 PSpice Transient Model

SLVMB54.ZIP (85 KB) - PSpice Model
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仿真模型

TPS79730 Unencrypted PSpice Transient Model

SLVMB53.ZIP (2 KB) - PSpice Model
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仿真模型

TPS79733 PSpice Transient Model

SLVMB51.ZIP (85 KB) - PSpice Model
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仿真模型

TPS79733 Unencrypted PSpice Transient Model

SLVMB52.ZIP (2 KB) - PSpice Model
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参考设计

DLP4500-C350REF — DLP 0.45 WXGA 芯片组参考设计

该参考设计采用 DLP® 0.45 英寸 WXGA 芯片组并应用于 DLP® LightCrafter™ 4500 评估模块 (EVM) 中，能够灵活控制工业、医疗和科学应用领域中的高分辨率精确图形。借助基于 USB 的免费 GUI 和 API，开发人员可轻松将 TI 的创新型数字微镜器件 (DMD) 技术与摄像头、传感器、电机和其他外设相集成，以打造与众不同的 3D 机器视觉系统、3D 打印机和扩增实境显示器。



 

 

测试报告: PDF
原理图: PDF
参考设计

TIDA-00254 — 面向 3D 机器视觉应用并采用 DLP 技术的精确点云生成

3D 机器视觉参考设计采用米6体育平台手机版_好二三四 (TI) 的 DLP 软件开发套件 (SDK)，使得开发人员可以通过将 TI 的数字微镜器件 (DMD) 技术与摄像头、传感器、电机和其他外设集成来轻松构建 3D 点云。高度差异化 3D 机器视觉系统利用 DLP® LightCrafter™ 4500 估模块 (EVM)（采用 DLP® 0.45 英寸 WXGA 芯片组），能够灵活控制工业、医疗和安全应用的高分辨率精确图形。
测试报告: PDF
原理图: PDF
封装 引脚 CAD 符号、封装和 3D 模型
SOT-SC70 (DCK) 5 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

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
  • 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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