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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS62000-HT

現行

高溫高效降壓低功耗 DC-DC 轉換器

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TPS62000-HT

現行
產品規格表 立即訂購

產品詳細資料

Rating High Temp Operating temperature range (°C) -55 to 210 Topology Buck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 2 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 1000 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Light load efficiency, Power good, Synchronous Rectification Control mode current mode Vout (min) (V) 0.9 Vout (max) (V) 5 Iq (typ) (µA) 50 Duty cycle (max) (%) 100
Rating High Temp Operating temperature range (°C) -55 to 210 Topology Buck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 2 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 1000 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Light load efficiency, Power good, Synchronous Rectification Control mode current mode Vout (min) (V) 0.9 Vout (max) (V) 5 Iq (typ) (µA) 50 Duty cycle (max) (%) 100
  • High-Efficiency Synchronous Step-Down Converter
    With Greater Than 95% Efficiency
  • 2 V to 5.5 V Operating Input Voltage Range
  • Adjustable Output Voltage Range From 0.8 V to VI
  • Synchronizable to External Clock Signal up to 1 MHz
  • Up to 300 mA Output Current
  • Pin-Programmable Current Limit
  • High Efficiency Over a Wide Load Current Range in
    Power Save Mode
  • 100% Maximum Duty Cycle for Lowest Dropout
  • Low-Noise Operation Antiringing Switch and
    PFM/PWM Operation Mode
  • Internal Softstart
  • 50-µA Quiescent Current (TYP)
  • Evaluation Module Available for Commercial
    Temperature Range
  • APPLICATIONS
    • Down-Hole Drilling
    • High Temperature Environments
  • SUPPORTS EXTREME TEMPERATURE APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extreme (–55°C/210°C)
      Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Texas Instruments high temperature products utilize
      highly optimized silicon (die) solutions with design
      and process enhancements to maximize performance over
      extended temperatures.

(1) Custom temperature ranges available.
  • High-Efficiency Synchronous Step-Down Converter
    With Greater Than 95% Efficiency
  • 2 V to 5.5 V Operating Input Voltage Range
  • Adjustable Output Voltage Range From 0.8 V to VI
  • Synchronizable to External Clock Signal up to 1 MHz
  • Up to 300 mA Output Current
  • Pin-Programmable Current Limit
  • High Efficiency Over a Wide Load Current Range in
    Power Save Mode
  • 100% Maximum Duty Cycle for Lowest Dropout
  • Low-Noise Operation Antiringing Switch and
    PFM/PWM Operation Mode
  • Internal Softstart
  • 50-µA Quiescent Current (TYP)
  • Evaluation Module Available for Commercial
    Temperature Range
  • APPLICATIONS
    • Down-Hole Drilling
    • High Temperature Environments
  • SUPPORTS EXTREME TEMPERATURE APPLICATIONS
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Extreme (–55°C/210°C)
      Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Texas Instruments high temperature products utilize
      highly optimized silicon (die) solutions with design
      and process enhancements to maximize performance over
      extended temperatures.

(1) Custom temperature ranges available.

The TPS62000 device is a low-noise synchronous step-down dc-dc converter that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 2- to 3-cell NiCd, NiMH, or alkaline battery. The TPS62000 operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.

The TPS62000 is a synchronous current-mode PWM converter with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve the highest efficiency over a wide load current range, the converter enters a power-saving pulse-frequency modulation (PFM) mode at light load currents. Operating frequency is typically 750 kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 500 kHz to 1 MHz. For low-noise operation, the converter can be operated in the PWM mode and the internal antiringing switch reduces noise and EMI. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS62000-HT is available in the 10-pin (HKK). The device operates a free-air temperature range of –55°C to 210°C.

The TPS62000 device is a low-noise synchronous step-down dc-dc converter that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 2- to 3-cell NiCd, NiMH, or alkaline battery. The TPS62000 operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.

The TPS62000 is a synchronous current-mode PWM converter with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve the highest efficiency over a wide load current range, the converter enters a power-saving pulse-frequency modulation (PFM) mode at light load currents. Operating frequency is typically 750 kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 500 kHz to 1 MHz. For low-noise operation, the converter can be operated in the PWM mode and the internal antiringing switch reduces noise and EMI. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS62000-HT is available in the 10-pin (HKK). The device operates a free-air temperature range of –55°C to 210°C.
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類型 標題 日期
* Radiation & reliability report TPS62000SHKK Reliability Report 2012年 7月 18日
* Data sheet High-Efficiency Step-Down Low Power DC-DC Converter datasheet (Rev. A) 2009年 6月 26日

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