具有电源正常指示和使能功能的 1A、超低压降稳压器

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TPS746 正在供货 具有电源正常指示和使能功能的 1A、低 IQ、高精度、可调节超低压降稳压器 Replacement

产品详情

Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 1.8 Vout (max) (V) 2.5 Vout (min) (V) 1.26 Fixed output options (V) 1.26, 1.5, 1.6, 1.8, 2.5 Noise (µVrms) 150 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 23 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 20 Dropout voltage (Vdo) (typ) (mV) 170 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 1.8 Vout (max) (V) 2.5 Vout (min) (V) 1.26 Fixed output options (V) 1.26, 1.5, 1.6, 1.8, 2.5 Noise (µVrms) 150 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 23 Rating Catalog Load capacitance (min) (µF) 1 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 2 PSRR at 100 KHz (dB) 20 Dropout voltage (Vdo) (typ) (mV) 170 Operating temperature range (°C) -40 to 125
SOT-223 (DCQ) 6 45.89 mm² 6.5 x 7.06 TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • 1-A Low-Dropout Regulator Supports Input Voltages Down to 1.8-V
  • Available in 1.26-V, 1.5-V, 1.6-V, 1.8-V, 2.5-V
  • Stable With Any Type/Value Output Capacitor
  • ±2% Output Voltage Tolerance Over Line, Load, and Temperature (–40°C to +125°C)
  • Integrated Supervisor (SVS) With 200-ms
    RESET Delay Time
  • Low 170-mV Dropout Voltage at 1 A (TPS72625)
  • Low 210-µA Ground Current at Full Load
  • Less than 1-µA Standby Current
  • Integrated UVLO with Thermal and Overcurrent Protection
  • 5-Lead SOT223 or DDPAK Surface-Mount Package
  • APPLICATIONS
    • PCI Cards
    • Modem Banks and Telecom Boards
    • DSP, FPGA, and Microprocessor Power Supplies
    • Portable, Battery-Powered Applications
    • 1.26-V Core Voltage for the Following DSPs:
      • TMS320vC5501
      • TMS320vC5502

  • 1-A Low-Dropout Regulator Supports Input Voltages Down to 1.8-V
  • Available in 1.26-V, 1.5-V, 1.6-V, 1.8-V, 2.5-V
  • Stable With Any Type/Value Output Capacitor
  • ±2% Output Voltage Tolerance Over Line, Load, and Temperature (–40°C to +125°C)
  • Integrated Supervisor (SVS) With 200-ms
    RESET Delay Time
  • Low 170-mV Dropout Voltage at 1 A (TPS72625)
  • Low 210-µA Ground Current at Full Load
  • Less than 1-µA Standby Current
  • Integrated UVLO with Thermal and Overcurrent Protection
  • 5-Lead SOT223 or DDPAK Surface-Mount Package
  • APPLICATIONS
    • PCI Cards
    • Modem Banks and Telecom Boards
    • DSP, FPGA, and Microprocessor Power Supplies
    • Portable, Battery-Powered Applications
    • 1.26-V Core Voltage for the Following DSPs:
      • TMS320vC5501
      • TMS320vC5502

The TPS726xx family of 1-A low-dropout (LDO) linear regulators has fixed voltage options available that are commonly used to power the latest DSPs, FPGAs, and microcontrollers. The integrated supervisory circuitry provides an active low RESET signal when the output falls out of regulation. The no capacitor/any capacitor feature allows the customer to tailor output transient performance as needed. Therefore, compared to other regulators capable of providing the same output current, this family of regulators can provide a stand alone power supply solution or a post regulator for a switch mode power supply.

These regulators operate over a wide range of input voltages (1.8 V to 6 V) and have very low dropout (170 mV at 1-A). Ground current is typically 210 µA at full load and drops to less than 80 µA at no load. Standby current is less than 1 µA.

Unlike some regulators that have a minimum current requirement, the TPS726xx family is stable with no output load current. The low noise capability of this family, coupled with its high current operation and ease of power dissipation, make it ideal for telecom boards, modem banks, and other noise sensitive applications.

The TPS726xx is available in either a SOT223 or DDPAK package. The TPS726126 is available in a SOT223 package only.

The TPS726xx family of 1-A low-dropout (LDO) linear regulators has fixed voltage options available that are commonly used to power the latest DSPs, FPGAs, and microcontrollers. The integrated supervisory circuitry provides an active low RESET signal when the output falls out of regulation. The no capacitor/any capacitor feature allows the customer to tailor output transient performance as needed. Therefore, compared to other regulators capable of providing the same output current, this family of regulators can provide a stand alone power supply solution or a post regulator for a switch mode power supply.

These regulators operate over a wide range of input voltages (1.8 V to 6 V) and have very low dropout (170 mV at 1-A). Ground current is typically 210 µA at full load and drops to less than 80 µA at no load. Standby current is less than 1 µA.

Unlike some regulators that have a minimum current requirement, the TPS726xx family is stable with no output load current. The low noise capability of this family, coupled with its high current operation and ease of power dissipation, make it ideal for telecom boards, modem banks, and other noise sensitive applications.

The TPS726xx is available in either a SOT223 or DDPAK package. The TPS726126 is available in a SOT223 package only.

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技术文档

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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, 1-A Low-Dropout Linear Regulators w/ Supervisor 数据表 (Rev. H) 2010年 6月 18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-SOT223LDO Demonstration Fixture 2003年 10月 15日
用户指南 DEM-TO263LDO Demonstration Fixture 2003年 10月 15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)。

封装 引脚 下载
SOT-223 (DCQ) 6 查看选项
TO-263 (KTT) 5 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

支持和培训

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