TPS722
- 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.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 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) | 2002-4-22 | |||
| 应用手册 | LDO 噪声揭秘 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2020-9-16 | |
| 应用手册 | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017-8-9 | |||
| 用户指南 | DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) | 2005-6-2 |
设计与开发
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）。
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
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.
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。
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 (...)
TIDM-RF430FRLSENSE — RF430FRL152H NFC 温度和光传感器参考设计
此参考设计提供了一个用于评估 RF430FRL152H NFC 传感器接口应答器的平台。 热敏电阻和光晶体管测量直接开箱即用，可传送到支持 NFC 的智能手机或其他 NFC/RFID 读取器器件。 该参考设计可以使用电池将数据记录到 FRAM 中来运行，也可以在不使用电池而是利用从射频场中收集的能量来运行。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
订购和质量
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