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TPS54917

現行

3V 至 4V 輸入、9A 同步降壓式 SWIFT™ 轉換器

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功能與所比較的裝置相似
TPS62871 現行 具有頻率同步選項的 6V、9A 堆疊式同步降壓轉換器 Smaller size and wider supply voltage range

TPS54917

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 9 Vin (max) (V) 4 Vin (min) (V) 3 Vout (max) (V) 2.5 Vout (min) (V) 0.9 Features Enable, Frequency synchronization, Power good, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.011 Duty cycle (max) (%) 90
Rating Catalog Topology Buck Iout (max) (A) 9 Vin (max) (V) 4 Vin (min) (V) 3 Vout (max) (V) 2.5 Vout (min) (V) 0.9 Features Enable, Frequency synchronization, Power good, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.011 Duty cycle (max) (%) 90
VQFN (RUV) 34 24.5 mm² 7 x 3.5
  • 13-mΩ MOSFET Switches for High Efficiency at 9-A Continuous Output
  • Adjustable Output Voltage Down to 0.9 V With 1% Accuracy
  • Externally Compensated for Design Flexibility
  • Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 1.6 MHz
  • Synchronizable to 1.6 MHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Small 3.5 mm × 7 mm Package and Similar Layout to TPS54910 Reduces Board Area and Total Cost
  • SWIFT Documentation Application Notes, and SwitcherPro Software: http://www.ti.com/swift
  • 13-mΩ MOSFET Switches for High Efficiency at 9-A Continuous Output
  • Adjustable Output Voltage Down to 0.9 V With 1% Accuracy
  • Externally Compensated for Design Flexibility
  • Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 1.6 MHz
  • Synchronizable to 1.6 MHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Small 3.5 mm × 7 mm Package and Similar Layout to TPS54910 Reduces Board Area and Total Cost
  • SWIFT Documentation Application Notes, and SwitcherPro Software: http://www.ti.com/swift

As a member of the SWIFT™ family of DC-DC regulators, the TPS54917 low-input voltage high-output current synchronous buck PWM converter offers the same features as the TPS54910 in a smaller package and higher switching frequency, which allows for a smaller total solution. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; an undervoltage lockout (UVLO) circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor or logic reset, fault signaling, and supply sequencing.

The TPS54917 is available in a thermally enhanced 34-pin VQFN (RUV) PowerPAD™ package, which eliminates bulky heat sinks. TI provides evaluation modules and the SwitcherPro design software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.

As a member of the SWIFT™ family of DC-DC regulators, the TPS54917 low-input voltage high-output current synchronous buck PWM converter offers the same features as the TPS54910 in a smaller package and higher switching frequency, which allows for a smaller total solution. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; an undervoltage lockout (UVLO) circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor or logic reset, fault signaling, and supply sequencing.

The TPS54917 is available in a thermally enhanced 34-pin VQFN (RUV) PowerPAD™ package, which eliminates bulky heat sinks. TI provides evaluation modules and the SwitcherPro design software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.
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* Data sheet TPS54917 3-V to 4-V Input, 9-A, Small Synchronous Buck Switcher With Integrated FETs (SWIFT™) datasheet (Rev. A) PDF | HTML 2016年 12月 23日

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