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参数

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 Noise (uVrms) 90 Iq (Typ) (mA) 0.28 Thermal resistance θJA (°C/W) 66 Approx. price (US$) 0.41 | 1ku Load capacitance (Min) (µF) 0.1 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 3 PSRR @ 100 KHz (dB) 8 Dropout voltage (Vdo) (Typ) (mV) 50 Operating temperature range (C) -40 to 125 open-in-new 查找其它 线性稳压器(LDO)

封装|引脚|尺寸

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new 查找其它 线性稳压器(LDO)

特性

  • 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

open-in-new 查找其它 线性稳压器(LDO)

描述

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.

open-in-new 查找其它 线性稳压器(LDO)
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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 Low Input Voltage, Cap-Free 50-mA Low-Dropout Linear Regulators 数据表 2002年 4月 22日
技术文章 LDO basics: capacitor vs. capacitance 2018年 8月 1日
技术文章 LDO Basics: Preventing reverse current 2018年 7月 25日
技术文章 LDO basics: introduction to quiescent current 2018年 6月 20日
应用手册 LDO Noise Demystified 2017年 8月 9日
技术文章 LDO basics: noise – part 1 2017年 6月 14日
应用手册 简化的 LDO PSRR 测量 下载最新的英文版本 (Rev.A) 2010年 7月 28日
用户指南 DEM-SOT23LDO DEMONSTRATION FIXTURE 2005年 6月 2日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$5.00
评估板 下载
document-generic 用户指南
$49.00
说明

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.

特性

Same size and TO-220 package. Simplifies designing of the power supply for the core power of low-power TMS320C54x digital signal processors (DSPs).

评估板 下载
document-generic 用户指南
$49.00
说明

The TPS76918EVM-127 give designer an easy layout for using and evaluating TPS76918 SOT23 LDO in an application to regulate from 5V to a 1.8V output. It includes input and output capacitors.

特性

Same size and TO220 package. Simplifies designing the core power power supply for low power TMS320C54x DSPs.

评估板 下载
document-generic 用户指南
$49.00
说明

The TPS76933EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76933 SOT-23 LDO in an application to regulate from 5 V to a 3.3-V output. The EVM includes input and output capacitors.

特性

Same size and TO-220 package. Simplifies designing the power supply for the core power of low-power TMS320C54x digital signal processors (DSPs).

评估板 下载
TPS79301 评估模块
TPS79301EVM
document-generic 用户指南
$49.00
评估板 下载
TPS79328 评估模块
TPS79328EVM
document-generic 用户指南
$49.00
说明

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 (...)

参考设计

参考设计 下载
RF430FRL152H NFC 温度和光传感器参考设计
TIDM-RF430FRLSENSE 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。
document-generic 原理图 document-generic 用户指南

CAD/CAE 符号

封装 引脚 下载
SOT-23 (DBV) 5 视图选项

订购与质量

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