TPS721

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具有使能功能的 150mA、低壓降穩壓器

產品詳情

Rating Catalog Vin (max) (V) 5.5 Vin (min) (V) 1.8 Iout (max) (A) 0.15 Output options Adjustable Output, Fixed Output Vout (max) (V) 2.5 Vout (min) (V) 1.23 Fixed output options (V) 1.5, 1.6, 1.8 Noise (μVrms) 90 PSRR at 100 KHz (dB) 8 Iq (typ) (mA) 0.085 Features Enable Thermal resistance θJA (°C/W) 66 Load capacitance (min) (μF) 0.1 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 150 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 5.5 Vin (min) (V) 1.8 Iout (max) (A) 0.15 Output options Adjustable Output, Fixed Output Vout (max) (V) 2.5 Vout (min) (V) 1.23 Fixed output options (V) 1.5, 1.6, 1.8 Noise (μVrms) 90 PSRR at 100 KHz (dB) 8 Iq (typ) (mA) 0.085 Features Enable Thermal resistance θJA (°C/W) 66 Load capacitance (min) (μF) 0.1 Regulated outputs (#) 1 Accuracy (%) 3 Dropout voltage (Vdo) (typ) (mV) 150 Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 5 8.12 mm2 2.9 x 2.8
  • 150-mA LDO
  • Available in 1.5-V, 1.6-V, 1.8-V Fixed-Output and Adjustable (1.2-V to 2.5-V) Versions
  • Low Input Voltage Requirement (Down to 1.8 V)
  • Small Output Capacitor, 0.1-μF
  • Dropout Voltage Typically 200 mV at 150 mA
  • Less Than 1 μA 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
  • 150-mA LDO
  • Available in 1.5-V, 1.6-V, 1.8-V Fixed-Output and Adjustable (1.2-V to 2.5-V) Versions
  • Low Input Voltage Requirement (Down to 1.8 V)
  • Small Output Capacitor, 0.1-μF
  • Dropout Voltage Typically 200 mV at 150 mA
  • Less Than 1 μA 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 TPS721xx family of LDO regulators is available in fixed voltage options that are commonly used to power the latest DSPs 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 (150 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 µA during normal operation and 1 µA in shutdown mode. 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-µF 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-µF. 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 TPS721xx family of LDO regulators is available in fixed voltage options that are commonly used to power the latest DSPs 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 (150 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 µA during normal operation and 1 µA in shutdown mode. 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-µF 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-µF. 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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類型 標題 下載最新的英語版本 日期
* 數據表 TPS721xx: Low Input Voltage, Cap Free 150-mA Low-Dropout Regulators 數據表 (Rev. C) 2006年 3月 31日
應用手冊 LDO 噪聲揭秘 (Rev. B) PDF | HTML 英語版 (Rev.B) PDF | HTML 2020年 9月 16日
應用手冊 LDO PSRR Measurement Simplified (Rev. A) PDF | HTML 2017年 8月 9日
應用手冊 簡化的 LDO PSRR 測量 最新英語版本 (Rev.A) PDF | HTML 2010年 7月 28日
用戶指南 DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) 2005年 6月 2日

設計和開發

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估板

DEM-SOT23LDO — 采用 5 條或 6 條引線 SOT23 (DBV) 封裝與大多數正輸出 LDO 穩壓器兼容的 DEM-SOT23LDO

用戶指南: PDF
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評估板

TPS76901EVM-127 — SOT-23 LDO、5V 至 1.8V、100mA 輸出電源

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.

用戶指南: PDF
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評估板

TPS76933EVM-127 — TPS76933 采用 SOT-23 封裝、具有 5V 至 3.3V 輸出電源電壓的 LDO 穩壓器評估模塊

TPS76933EVM-127 評估模塊 (EVM) 具有簡單的布局，供設計人員評估 TPS76933 SOT-23 LDO 在應用中將輸出電壓從 5V 調節到 3.3V 的性能。該 EVM 包含輸入和輸出電容器。

用戶指南: PDF
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評估板

TPS79301EVM — TPS79301 評估模塊

用戶指南: PDF
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評估板

TPS79328EVM — TPS79328 評估模塊

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 (...)

用戶指南: PDF
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封裝 引腳 CAD 符號、封裝和 3D 模型
SOT-23 (DBV) 5 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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