TPS773

正在供货

具有复位延迟功能的 250mA、10V、低压降稳压器

可提供此产品的更新版本

open-in-new 比较替代产品
功能与比较器件相似
TPS7A25 正在供货 具有电源正常指示功能的 300mA、18V、超低 IQ、高精度、可调节低压降稳压器 An 18-V, 300-mA LDO regulator with power-good and ultra-low IQ (2.5 μA)

产品详情

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.5 Fixed output options (V) 1.5, 1.6, 1.8, 2.8, 3.3, 5 Noise (µVrms) 55 Iq (typ) (mA) 0.09 Thermal resistance θJA (°C/W) 243 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 25 Dropout voltage (Vdo) (typ) (mV) 200 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.25 Vin (max) (V) 10 Vin (min) (V) 2.7 Vout (max) (V) 5.5 Vout (min) (V) 1.5 Fixed output options (V) 1.5, 1.6, 1.8, 2.8, 3.3, 5 Noise (µVrms) 55 Iq (typ) (mA) 0.09 Thermal resistance θJA (°C/W) 243 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 25 Dropout voltage (Vdo) (typ) (mV) 200 Operating temperature range (°C) -40 to 125
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Open Drain Power-On Reset With 220-ms Delay (TPS773xx)
  • Open Drain Power-Good (PG) Status Output (TPS774xx)
  • 250-mA Low-Dropout Voltage Regulator
  • Available in 1.5-V, 1.6-V (TPS77316 Only), 1.8-V, 2.7-V, 2.8-V, 3.3-V, 5.0-V Fixed Output and Adjustable Versions
  • Dropout Voltage Typically 200 mV at 250 mA (TPS77333, TPS77433)
  • Ultralow 92-uA Quiescent Current (Typ)
  • 8-Pin MSOP (DGK) Package
  • Low Noise (55 uVrms) Without an External Filter (Bypass) Capacitor (TPS77318, TPS77418)
  • 2% Tolerance Over Specified Conditions For Fixed-Output Versions
  • Fast Transient Response
  • Thermal Shutdown Protection
  • See the TPS779xx Family of Devices for Active High Enable

  • Open Drain Power-On Reset With 220-ms Delay (TPS773xx)
  • Open Drain Power-Good (PG) Status Output (TPS774xx)
  • 250-mA Low-Dropout Voltage Regulator
  • Available in 1.5-V, 1.6-V (TPS77316 Only), 1.8-V, 2.7-V, 2.8-V, 3.3-V, 5.0-V Fixed Output and Adjustable Versions
  • Dropout Voltage Typically 200 mV at 250 mA (TPS77333, TPS77433)
  • Ultralow 92-uA Quiescent Current (Typ)
  • 8-Pin MSOP (DGK) Package
  • Low Noise (55 uVrms) Without an External Filter (Bypass) Capacitor (TPS77318, TPS77418)
  • 2% Tolerance Over Specified Conditions For Fixed-Output Versions
  • Fast Transient Response
  • Thermal Shutdown Protection
  • See the TPS779xx Family of Devices for Active High Enable

The TPS773xx and TPS774xx are low-dropout regulators with integrated power-on reset and power good (PG) function respectively. These devices are capable of supplying 250 mA of output current with a dropout of 200 mV (TPS77333, TPS77433). Quiescent current is 92 uA at full load dropping down to 1 uA when device is disabled. These devices are optimized to be stable with a wide range of output capacitors including low ESR ceramic (10 uF) or low capacitance (1 uF) tantalum capacitors. These devices have extremely low noise output performance (55 uVrms) without using any added filter capacitors. TPS773xx and TPS774xx are designed to have fast transient response for larger load current changes.

The TPS773xx or TPS774xx is offered in 1.5-V, 1.6 V (TPS77316 only), 1.8-V, 2.7-V, 2.8-V, 3.3-V, and 5.0-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5.5 V). Output voltage tolerance is 2% over line, load, and temperature ranges. The TPS773xx and TPS774xx families are available in 8-pin MSOP (DGK) packages.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 200 mV at an output current of 250 mA for 3.3-volt option) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 92 uA over the full range of output current, 0 mA to 250 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when the EN\ pin is connected to a low-level input voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable) shuts down the regulator, reducing the quiescent current to less than 1 uA at T J = 25°C.

The TPS773xx features an integrated power-on reset, commonly used as a supply voltage supervisor (SVS), or reset output voltage. The RESET\ output of the TPS773xx initiates a reset in DSP, microcomputer or microprocessor systems at power up and in the event of an undervoltage condition. An internal comparator in the TPS773xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When OUT reaches 95% of its regulated voltage, RESET\ will go to a high-impedance state after a 220-ms delay. RESET\ will go to low-impedance state when OUT is pulled below 95% (i.e. over load condition) of its regulated voltage.

For the TPS774xx, the power good terminal (PG) is an active high output, which can be used to implement a power-on reset or a low-battery indicator. An internal comparator in the TPS774xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When OUT falls below 82% of its regulated voltage, PG will go to a low-impedance state. PG will go to a high-impedance state when OUT is above 82% of its regulated voltage.

The TPS773xx and TPS774xx are low-dropout regulators with integrated power-on reset and power good (PG) function respectively. These devices are capable of supplying 250 mA of output current with a dropout of 200 mV (TPS77333, TPS77433). Quiescent current is 92 uA at full load dropping down to 1 uA when device is disabled. These devices are optimized to be stable with a wide range of output capacitors including low ESR ceramic (10 uF) or low capacitance (1 uF) tantalum capacitors. These devices have extremely low noise output performance (55 uVrms) without using any added filter capacitors. TPS773xx and TPS774xx are designed to have fast transient response for larger load current changes.

The TPS773xx or TPS774xx is offered in 1.5-V, 1.6 V (TPS77316 only), 1.8-V, 2.7-V, 2.8-V, 3.3-V, and 5.0-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.5 V to 5.5 V). Output voltage tolerance is 2% over line, load, and temperature ranges. The TPS773xx and TPS774xx families are available in 8-pin MSOP (DGK) packages.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 200 mV at an output current of 250 mA for 3.3-volt option) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 92 uA over the full range of output current, 0 mA to 250 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems.

The device is enabled when the EN\ pin is connected to a low-level input voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable) shuts down the regulator, reducing the quiescent current to less than 1 uA at T J = 25°C.

The TPS773xx features an integrated power-on reset, commonly used as a supply voltage supervisor (SVS), or reset output voltage. The RESET\ output of the TPS773xx initiates a reset in DSP, microcomputer or microprocessor systems at power up and in the event of an undervoltage condition. An internal comparator in the TPS773xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When OUT reaches 95% of its regulated voltage, RESET\ will go to a high-impedance state after a 220-ms delay. RESET\ will go to low-impedance state when OUT is pulled below 95% (i.e. over load condition) of its regulated voltage.

For the TPS774xx, the power good terminal (PG) is an active high output, which can be used to implement a power-on reset or a low-battery indicator. An internal comparator in the TPS774xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. When OUT falls below 82% of its regulated voltage, PG will go to a low-impedance state. PG will go to a high-impedance state when OUT is above 82% of its regulated voltage.

下载 观看带字幕的视频 视频

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 4
类型 标题 下载最新的英语版本 日期
* 数据表 250-mA LDO Regulators With 8-pin MSOP Packaging 数据表 (Rev. E) 2002年 3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

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)。

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
参考设计

TIDM-G2XXSWRGBLED — 基于超低功耗微控制器的软件控制器红色/绿色/蓝色 LED

此参考设计说明如何使用单个计时器模块或捕捉比较寄存器在 MSP430 上实施软件控制的 RGB LED。此设计还提供用于外部通信的串行通信接口
设计指南: PDF
原理图: PDF
参考设计

TIDM-LPBP-WIRELESSNODE — 低功耗(低于 1GHz)无线收发器

低功耗低于 1 GHz 无线收发器参考设计可实现低成本双向射频链接(使用两个收发器时)。具有集成天线的板载 Anaren Integrated Radio (AIR) A110LR09A 无线电模块可在欧洲 868-870MHz 和美国 902-928MHz ISM 频段中工作。随附的软件应用程序 AIR BoosterStack 展示了示例传感器网络以及网络状态报告。此类通信允许在使用短距离器件/通信的工业、科研和医疗领域进行开发。
用户指南: PDF
原理图: PDF
参考设计

TIDM-SMBUS — 采用低功耗微控制器的 SMBus 设计

此设计利用现有 Launchpad 评估套件和 BoosterPack 插件模块来演示如何使用德州仪器 (TI) MSP430 SMBus 库实现基于 SMBus 的系统。
设计指南: PDF
原理图: PDF
参考设计

TIDM-NFC-DESFIRE-AES — 近场通信 (NFC) MIFARE DESFire EV1 标签验证参考设计

MIFARE DESFire EV1 是一种 ISO14443A RFID 应答器,也是用于众多 NFC 和 RFID 安防应用的 NFC 4A 类标签平台,因为它能够无障碍运行或作为使用 AES 加密的安全应答器。此设计使用 TI AES 库以及 MSP430G2553 LaunchPad+DLP-7970ABP BoosterPack 来简单地展示一套对 MIFARE DESFire EV1 标签进行 AES 身份验证的经济高效型读取器系统解决方案。
此设计中所述的示例代码可从设计指南中下载。
原理图: PDF
参考设计

TIDM-ORIENTATIONTRACKER — 低功耗方向跟踪器

此参考应用演示了如何将超值系列 MSP430 器件、定点软件数学库和加速计结合形成低成本、超低功耗的简单姿态跟踪解决方案。MSP430 对加速计进行采样并实时执行计算来确定其姿态以及检测其自由落体状态。通过利用 IQmathLib 优化型定点软件库和取缔回转仪,此设计可借助电池电量长时间运行。该解决方案可用于监控倾斜、掉落或被盗情形,适合于大量的资产监控应用。

 

设计指南: PDF
原理图: PDF
参考设计

TIDM-LPBP-CAPTOUCH — 用于人机界面 (HMI) 应用的低功耗电容式触摸解决方案

此参考设计展示了电容式触控输入的超低功耗实现,可满足消费类、工业和其他应用中的各种人机界面 (HMI) 要求。该设计利用了 MSP430 超值系列微控制器中提供的独特功能,使您能够将电容式触控元件直接连接到微控制器输入/输出引脚,而无需外部或额外的无源组件。电容式触控 BoosterPack 有多个电容式触控元件,包括滚轮、按键和接近传感器。与 MSP430 LaunchPad 搭配使用时,这种组合提供了硬件和软件参考设计,使您能够快速轻松地将任何物理按键替换为电容式触控元件。这种组合具有成本效益,可让您为消费类电子产品、POS 机和具有物理按键的器件添加电容式触控功能。
原理图: PDF
封装 引脚 下载
VSSOP (DGK) 8 查看选项

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

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

视频