具有使能和复位功能的 1A、超低压降稳压器

TPS725 处于停产状态
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功能与比较器件相似
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 1-A LDO regulator with lower IQ in a 2-mm by 2-mm package
TPS7A91 正在供货 1A、低噪声、高 PSRR、高精度、可调节超低压降稳压器 Single-channel, low-noise, 1-A LDO regulator with power good.

产品详情

Output options Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 1.8 Vout (max) (V) 5.5 Vout (min) (V) 1.22 Fixed output options (V) 1.5, 1.6, 1.8, 2.5 Noise (µVrms) 150 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 23, 55.5 Rating Catalog Load capacitance (min) (µF) 10 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 Adjustable Output, Fixed Output Iout (max) (A) 1 Vin (max) (V) 6 Vin (min) (V) 1.8 Vout (max) (V) 5.5 Vout (min) (V) 1.22 Fixed output options (V) 1.5, 1.6, 1.8, 2.5 Noise (µVrms) 150 Iq (typ) (mA) 0.075 Thermal resistance θJA (°C/W) 23, 55.5 Rating Catalog Load capacitance (min) (µF) 10 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 Output Current
  • Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V Fixed-Output
    and Adjustable Versions
    (1.2-V to 5.5-V)
  • Input Voltage Down to 1.8 V
  • Low 170-mV Dropout Voltage at 1 A (TPS72525)
  • Stable With Any Type/Value Output Capacitor
  • Integrated Supervisor (SVS) With 50-ms
    RESET Delay Time
  • Low 210-µA Ground Current at Full Load (TPS72525)
  • Less than 1-µA Standby Current
  • ±2% Output Voltage Tolerance Over Line, Load, and Temperature
    (-40°C to 125°C)
  • Integrated UVLO
  • Thermal and Overcurrent Protection
  • 5-Lead SOT223-5 or DDPAK and 8-Pin SOP (TPS72501 only)
    Surface Mount Package
  • APPLICATIONS
    • PCI Cards
    • Modem Banks
    • Telecom Boards
    • DSP, FPGA, and Microprocessor Power Supplies
    • Portable, Battery-Powered Applications

  • 1-A Output Current
  • Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V Fixed-Output
    and Adjustable Versions
    (1.2-V to 5.5-V)
  • Input Voltage Down to 1.8 V
  • Low 170-mV Dropout Voltage at 1 A (TPS72525)
  • Stable With Any Type/Value Output Capacitor
  • Integrated Supervisor (SVS) With 50-ms
    RESET Delay Time
  • Low 210-µA Ground Current at Full Load (TPS72525)
  • Less than 1-µA Standby Current
  • ±2% Output Voltage Tolerance Over Line, Load, and Temperature
    (-40°C to 125°C)
  • Integrated UVLO
  • Thermal and Overcurrent Protection
  • 5-Lead SOT223-5 or DDPAK and 8-Pin SOP (TPS72501 only)
    Surface Mount Package
  • APPLICATIONS
    • PCI Cards
    • Modem Banks
    • Telecom Boards
    • DSP, FPGA, and Microprocessor Power Supplies
    • Portable, Battery-Powered Applications

The TPS725xx 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. An adjustable option ranging from 1.22 V to 5.5 V is also available. 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 are ideal for higher current applications. The family operates over a wide range of input voltages (1.8 V to 6 V) and has 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.

Each regulator option is available in either a SOT223-5, D (TPS72501 only), or DDPAK package. With a low input voltage and properly heatsinked package, the regulator dissipates more power and achieves higher efficiencies than similar regulators requiring 2.5 V or more minimum input voltage and higher quiescent currents. These features make it a viable power supply solution for portable, battery-powered equipment.

Although an output capacitor is not required for stability, transient response and output noise are improved with a 10-µF output capacitor.

Unlike some regulators that have a minimum current requirement, the TPS725 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 TPS725xx 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. An adjustable option ranging from 1.22 V to 5.5 V is also available. 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 are ideal for higher current applications. The family operates over a wide range of input voltages (1.8 V to 6 V) and has 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.

Each regulator option is available in either a SOT223-5, D (TPS72501 only), or DDPAK package. With a low input voltage and properly heatsinked package, the regulator dissipates more power and achieves higher efficiencies than similar regulators requiring 2.5 V or more minimum input voltage and higher quiescent currents. These features make it a viable power supply solution for portable, battery-powered equipment.

Although an output capacitor is not required for stability, transient response and output noise are improved with a 10-µF output capacitor.

Unlike some regulators that have a minimum current requirement, the TPS725 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.

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类型 标题 下载最新的英语版本 日期
* 数据表 TPS725xx: Low Input Voltage, 1-A Low-Dropout Linear Regulators with Supervisor 数据表 (Rev. E) 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)。

评估板

DEM-SOT223LDO — 采用 SOT223 (DCQ) 封装与大多数正输出 LDO 兼容的 DEM-SOT223LDO

The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs).  This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) package.

用户指南: PDF
TI.com 上无现货
参考设计

PMP2187 — 适用于医疗封装的反激式、线性稳压器 (5.75V@10mA)

此设计可提供隔离的 5V(两个)、3.3V、2.5V 及 -5V 输出。对于噪声敏感应用(如医学成像和数据采集),所有输出均可采用低压降 (LDO) 线性稳压器进行噪声过滤。
测试报告: PDF
原理图: PDF
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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