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线性和低压降 (LDO) 稳压器

TPS797-Q1

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具有电源正常指示功能的汽车类 10mA、超低 IQ、低压降稳压器

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TPS797-Q1

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产品详情

Output options Fixed Output Iout (max) (A) 0.01 Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 3.3 Vout (min) (V) 1.8 Fixed output options (V) 1.8, 3, 3.3 Noise (µVrms) 600 Iq (typ) (mA) 0.001 Thermal resistance θJA (°C/W) 314 Rating Automotive Load capacitance (min) (µF) 0.47 Regulated outputs (#) 1 Features Power good Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
Output options Fixed Output Iout (max) (A) 0.01 Vin (max) (V) 5.5 Vin (min) (V) 1.8 Vout (max) (V) 3.3 Vout (min) (V) 1.8 Fixed output options (V) 1.8, 3, 3.3 Noise (µVrms) 600 Iq (typ) (mA) 0.001 Thermal resistance θJA (°C/W) 314 Rating Automotive Load capacitance (min) (µF) 0.47 Regulated outputs (#) 1 Features Power good Accuracy (%) 4 Dropout voltage (Vdo) (typ) (mV) 110 Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • Qualified for Automotive Applications
  • 10-mA Low-Dropout Regulator
  • Ultralow 1.2-µA Quiescent Current at 10 mA
  • 5-Pin SC70/SOT-323 (DCK) Package
  • Integrated Power Good Output
  • Stable With Any Capacitor (>0.47 µF)
  • Dropout Voltage Typically 105 mV at 10 mA (TPS79733)
  • Over Current Limitation
  • –40°C to 125°C Operating Junction Temperature Range
  • APPLICATIONS
    • Battery Powered Microcontrollers and Microprocessors
  • Qualified for Automotive Applications
  • 10-mA Low-Dropout Regulator
  • Ultralow 1.2-µA Quiescent Current at 10 mA
  • 5-Pin SC70/SOT-323 (DCK) Package
  • Integrated Power Good Output
  • Stable With Any Capacitor (>0.47 µF)
  • Dropout Voltage Typically 105 mV at 10 mA (TPS79733)
  • Over Current Limitation
  • –40°C to 125°C Operating Junction Temperature Range
  • APPLICATIONS
    • Battery Powered Microcontrollers and Microprocessors

The TPS797xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage and ultralow-power operation. The device is stable with any capacitor (>0.47 µF). Therefore, implementations of this device require little board space due to the miniaturized packaging and potentially small output capacitor. In addition, the family includes an integrated open drain active-high power good (PG) output. Intended for use in microcontroller based, battery-powered applications, the TPS797xx family’s low dropout and ultralow-powered operation results in a significant increase in system battery operating life. The small packaging minimizes consumption of board space.

The device is enabled when the applied voltage exceeds the minimum input voltage. The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is low, typically 105 mV at 10 mA of load current and is directly proportional to the load current. The quiescent current is ultralow (1.2 µA typically) and is stable over the entire range of output load current (0 mA to 10 mA). When properly configured with a pullup resistor, the PG output can be used to implement a power-on reset or low battery indicator. The TPS797xx is offered in 1.8-V, 3-V, and 3.3-V fixed options.

The TPS797xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage and ultralow-power operation. The device is stable with any capacitor (>0.47 µF). Therefore, implementations of this device require little board space due to the miniaturized packaging and potentially small output capacitor. In addition, the family includes an integrated open drain active-high power good (PG) output. Intended for use in microcontroller based, battery-powered applications, the TPS797xx family’s low dropout and ultralow-powered operation results in a significant increase in system battery operating life. The small packaging minimizes consumption of board space.

The device is enabled when the applied voltage exceeds the minimum input voltage. The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is low, typically 105 mV at 10 mA of load current and is directly proportional to the load current. The quiescent current is ultralow (1.2 µA typically) and is stable over the entire range of output load current (0 mA to 10 mA). When properly configured with a pullup resistor, the PG output can be used to implement a power-on reset or low battery indicator. The TPS797xx is offered in 1.8-V, 3-V, and 3.3-V fixed options.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS7971xx-Q1: Ultralow-Power SC70/SOT-323 Pkgd 10 mA LDO Linear Regulators 数据表 (Rev. A) 2008年 6月 23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

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包含信息：
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  • 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
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