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线性和低压降 (LDO) 稳压器

TPS722

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具有使能功能的 50mA、低压降稳压器

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新 TLV770 正在供货 50mA、小尺寸、高 PSRR、低压降 (LDO) 稳压器 Lower cost alternative with higher 60dB PSRR

TPS722

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产品详情

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 2.5 Vout (min) (V) 1.22 Fixed output options (V) 1.5, 1.6, 1.8 Rating Catalog Noise (µVrms) 90 PSRR at 100 KHz (dB) 8 Iq (typ) (mA) 0.28 Thermal resistance θJA (°C/W) 66 Load capacitance (min) (µF) 0.1 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 50 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.05 Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 2.5 Vout (min) (V) 1.22 Fixed output options (V) 1.5, 1.6, 1.8 Rating Catalog Noise (µVrms) 90 PSRR at 100 KHz (dB) 8 Iq (typ) (mA) 0.28 Thermal resistance θJA (°C/W) 66 Load capacitance (min) (µF) 0.1 Regulated outputs (#) 1 Features Enable Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 50 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 50-mA LDO
  • Available in 1.5-V, 1.6-V, and 1.8-V Fixed-Output and Adjustable Versions
  • Low Input Voltage Requirement (Down to 1.8 V)
  • Small Output Capacitor, 0.1-uF
  • Dropout Voltage Typically 50 mV at 50 mA
  • Less Than 1 uA Quiescent Current in Shutdown Mode
  • Thermal Protection
  • Over Current Limitation
  • 5-Pin SOT-23 (DBV) Package
  • APPLICATIONS
    • Portable Communication Devices
    • Battery Powered Equipment
    • PCMCIA Cards
    • Personal Digital Assistants
    • Modems
    • Bar Code Scanners
    • Backup Power Supplies
    • SMPS Post Regulation
    • Internet Audio
  • 50-mA LDO
  • Available in 1.5-V, 1.6-V, and 1.8-V Fixed-Output and Adjustable Versions
  • Low Input Voltage Requirement (Down to 1.8 V)
  • Small Output Capacitor, 0.1-uF
  • Dropout Voltage Typically 50 mV at 50 mA
  • Less Than 1 uA Quiescent Current in Shutdown Mode
  • Thermal Protection
  • Over Current Limitation
  • 5-Pin SOT-23 (DBV) Package
  • APPLICATIONS
    • Portable Communication Devices
    • Battery Powered Equipment
    • PCMCIA Cards
    • Personal Digital Assistants
    • Modems
    • Bar Code Scanners
    • Backup Power Supplies
    • SMPS Post Regulation
    • Internet Audio

The TPS722xx family of LDO regulators is available in fixed voltage options that are commonly used to power the latest DSP’s and microcontrollers with an adjustable option ranging from 1.22 V to 2.5 V. These regulators can be used in a wide variety of applications ranging from portable, battery-powered equipment to PC peripherals. The family features operation over a wide range of input voltages (1.8 V to 5.5 V) and low dropout voltage (50 mV at full load). Therefore, compared to many other regulators that require 2.5-V or higher input voltages for operation, these regulators can be operated directly from two AAA batteries. Also, the typical quiescent current (ground pin current) is low, starting at 85 uA during normal operation and 1 uA in shutdown mode. Thus, these regulators can be operated very efficiently and, in a battery-powered application, help extend the longevity of the device.

Similar LDO regulators require 1-uF or larger output capacitors for stability. However, this regulator uses an internal compensation scheme that stabilizes the feedback loop over the full range of input voltages and load currents with output capacitances as low as 0.1-uF. Ceramic capacitors of this size are relatively inexpensive and available in small footprints.

This family of regulators is particularly suited as a portable power supply solution due to its minimal board space requirement and 1.8-V minimum input voltage. Being able to use two off-the-shelf, AAA, batteries makes system design easier and also reduces component cost. Moreover, the solution will be more efficient than if a regulator with a higher input voltage is used.

The TPS722xx family of LDO regulators is available in fixed voltage options that are commonly used to power the latest DSP’s and microcontrollers with an adjustable option ranging from 1.22 V to 2.5 V. These regulators can be used in a wide variety of applications ranging from portable, battery-powered equipment to PC peripherals. The family features operation over a wide range of input voltages (1.8 V to 5.5 V) and low dropout voltage (50 mV at full load). Therefore, compared to many other regulators that require 2.5-V or higher input voltages for operation, these regulators can be operated directly from two AAA batteries. Also, the typical quiescent current (ground pin current) is low, starting at 85 uA during normal operation and 1 uA in shutdown mode. Thus, these regulators can be operated very efficiently and, in a battery-powered application, help extend the longevity of the device.

Similar LDO regulators require 1-uF or larger output capacitors for stability. However, this regulator uses an internal compensation scheme that stabilizes the feedback loop over the full range of input voltages and load currents with output capacitances as low as 0.1-uF. Ceramic capacitors of this size are relatively inexpensive and available in small footprints.

This family of regulators is particularly suited as a portable power supply solution due to its minimal board space requirement and 1.8-V minimum input voltage. Being able to use two off-the-shelf, AAA, batteries makes system design easier and also reduces component cost. Moreover, the solution will be more efficient than if a regulator with a higher input voltage is used.
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类型 标题 下载最新的英语版本 日期
* 数据表 Low Input Voltage, Cap-Free 50-mA Low-Dropout Linear Regulators 数据表 (Rev. B) 2002年 4月 22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 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
用户指南 DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) 2005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

DEM-SOT23LDO — 采用 5 条或 6 条引线 SOT23 (DBV) 封装与大多数正输出 LDO 稳压器兼容的 DEM-SOT23LDO

用户指南: PDF
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评估板

TPS76901EVM-127 — SOT-23 LDO、5V 至 1.8V、100mA 输出电源

The TPS76901EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76901 SOT-23 LDO in an application to regulate from 5 V to a selectable output. The EVM includes input and output capacitors.

用户指南: PDF
TI.com 上无现货
评估板

TPS76933EVM-127 — TPS76933 采用 SOT-23 封装、具有 5V 至 3.3V 输出电源电压的 LDO 稳压器评估模块

TPS76933EVM-127 评估模块 (EVM) 具有简单的布局，供设计人员评估 TPS76933 SOT-23 LDO 在应用中将输出电压从 5V 调节到 3.3V 的性能。该 EVM 包含输入和输出电容器。

用户指南: PDF
TI.com 上无现货
评估板

TPS79301EVM — TPS79301 评估模块

用户指南: PDF
TI.com 上无现货
评估板

TPS79328EVM — TPS79328 评估模块

The purpose of this EVM is to facilitate evaluation of the TPS793xx family of LDO regulators. Each EVM package contains one SLVP191 test board, with either a TPS79301DBV linear regulator or a TPS79328DBV linear regulator, as well as supporting passive components. The TPS79301DBV adjustable device (...)

用户指南: PDF
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参考设计

TIDM-RF430FRLSENSE — RF430FRL152H NFC 温度和光传感器参考设计

此参考设计提供了评估 RF430FRL152H NFC 传感器接口应答器的平台。开箱之后，热敏电阻和光晶体管的测量值可直接传输到具有 NFC 功能的智能手机或其他 NFC/RFID 读取设备上。此参考设计可以在电池供电的情况下操作，将数据记录到 FRAM，也可以不使用电池，而利用从射频场收集的能量。
原理图: PDF
封装 引脚 CAD 符号、封装和 3D 模型
SOT-23 (DBV) 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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