TPS62737

現行

具高達 200mA 輸出電流的可編程輸出電壓超低功耗降壓轉換器

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 105 Topology Buck Type Converter Iout (max) (A) 0.2 Vin (min) (V) 2 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 Features Enable Vout (min) (V) 1.3 Vout (max) (V) 5 Iq (typ) (µA) 0.375 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 105 Topology Buck Type Converter Iout (max) (A) 0.2 Vin (min) (V) 2 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 2000 Switching frequency (max) (kHz) 2000 Features Enable Vout (min) (V) 1.3 Vout (max) (V) 5 Iq (typ) (µA) 0.375 Duty cycle (max) (%) 100
VQFN (RGY) 14 12.25 mm² 3.5 x 3.5
  • Industry&3146;s Highest Efficiency at Low Output
    Currents: > 90% With IOUT = 15 µA
  • Ultra-Low Power Buck Converter
    • TPS62736 Optimized for 50-mA Output Current
    • TPS62737 Optimized for 200-mA Output Current
    • 1.3-V to 5-V Resistor Programmable Output Voltage
      Range
    • 2-V to 5.5-V Input Operating Range
    • 380-nA and 375-nA Quiescent Current During Active
      Operation for TPS62736 and TPS62737
    • 10-nA Quiescent Current During Ship Mode Operation
    • 2% Voltage Regulation Accuracy
  • 100% Duty Cycle (Pass Mode)
  • EN1 and EN2 Control
    • Two Power-Off States:Shipmode (Full Power-Off State)
      Standby Mode Includes VIN_OK Indication
  • Input Power-Good Indication (VIN_OK)
    • Push-Pull Driver
    • Resistor Programmable Threshold Level
  • Industry&3146;s Highest Efficiency at Low Output
    Currents: > 90% With IOUT = 15 µA
  • Ultra-Low Power Buck Converter
    • TPS62736 Optimized for 50-mA Output Current
    • TPS62737 Optimized for 200-mA Output Current
    • 1.3-V to 5-V Resistor Programmable Output Voltage
      Range
    • 2-V to 5.5-V Input Operating Range
    • 380-nA and 375-nA Quiescent Current During Active
      Operation for TPS62736 and TPS62737
    • 10-nA Quiescent Current During Ship Mode Operation
    • 2% Voltage Regulation Accuracy
  • 100% Duty Cycle (Pass Mode)
  • EN1 and EN2 Control
    • Two Power-Off States:Shipmode (Full Power-Off State)
      Standby Mode Includes VIN_OK Indication
  • Input Power-Good Indication (VIN_OK)
    • Push-Pull Driver
    • Resistor Programmable Threshold Level

The TPS6273x family provides a highly integrated ultra low power buck converter solution that is well suited for meeting the special needs of ultra-low power applications such as energy harvesting. The TPS6273x provides the system with an externally programmable regulated supply to preserve the overall efficiency of the power-management stage compared to a linear step-down converter. This regulator is intended to step-down the voltage from an energy storage element such as a battery or super capacitor to supply the rail to low-voltage electronics. The regulated output has been optimized to provide high efficiency across low-output currents (<10 µA) to high currents (200 mA).

The TPS6273x integrates an optimized hysteretic controller for low-power applications. The internal circuitry uses a time-based sampling system to reduce the average quiescent current.

To further assist users in the strict management of their energy budgets, the TPS6273x toggles the input power-good indicator to signal an attached microprocessor when the voltage on the input supply has dropped below a preset critical level. This signal is intended to trigger the reduction of load currents to prevent the system from entering an undervoltage condition. In addition, independent enable signals allow the system to control whether the converter is regulating the output, monitoring only the input voltage, or to shut down in an ultra-low quiescent sleep state.

The input power-good threshold and output regulator levels are programmed independently through external resistors.

All the capabilities of TPS6273x are packed into a small footprint 14-lead 3.5-mm × 3.5-mm QFN package (RGY).

The TPS6273x family provides a highly integrated ultra low power buck converter solution that is well suited for meeting the special needs of ultra-low power applications such as energy harvesting. The TPS6273x provides the system with an externally programmable regulated supply to preserve the overall efficiency of the power-management stage compared to a linear step-down converter. This regulator is intended to step-down the voltage from an energy storage element such as a battery or super capacitor to supply the rail to low-voltage electronics. The regulated output has been optimized to provide high efficiency across low-output currents (<10 µA) to high currents (200 mA).

The TPS6273x integrates an optimized hysteretic controller for low-power applications. The internal circuitry uses a time-based sampling system to reduce the average quiescent current.

To further assist users in the strict management of their energy budgets, the TPS6273x toggles the input power-good indicator to signal an attached microprocessor when the voltage on the input supply has dropped below a preset critical level. This signal is intended to trigger the reduction of load currents to prevent the system from entering an undervoltage condition. In addition, independent enable signals allow the system to control whether the converter is regulating the output, monitoring only the input voltage, or to shut down in an ultra-low quiescent sleep state.

The input power-good threshold and output regulator levels are programmed independently through external resistors.

All the capabilities of TPS6273x are packed into a small footprint 14-lead 3.5-mm × 3.5-mm QFN package (RGY).

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類型 標題 日期
* Data sheet TPS6273x Programmable Output Voltage Ultra-Low Power Buck Converter With Up to 50 mA / 200 mA Output Current datasheet (Rev. C) PDF | HTML 2014年 12月 16日
Analog Design Journal Understanding 100% mode in low-power DC/DC converters 2018年 6月 22日
Analog Design Journal Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold 2017年 10月 24日
EVM User's guide TPS62737 User Guide (Rev. A) 2014年 8月 23日
Product overview Battery Management Solutions for Wearable and Fitness Devices (Rev. C) 2014年 8月 18日
Analog Design Journal Accurately measuring efficiency of ultralow-IQ devices 2014年 1月 22日
Product overview Industry’s Most Efficient Nano Power Harvesting Solutions (Rev. A) 2013年 11月 8日

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產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
TPS62736 具 50mA 負載能力的高效奈米功率降壓轉換器 | 降壓 TPS62737 具高達 200mA 輸出電流的可編程輸出電壓超低功耗降壓轉換器
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RGY) 14 Ultra Librarian

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