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.

• 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

• Vin (Min) (V)
• 3
• Vin (Max) (V)
• 4
• Vout (Min) (V)
• 0.9
• Vout (Max) (V)
• 2.5
• Iout (Max) (A)
• 9
• Iq (Typ) (uA)
• 11000
• Switching frequency (Min) (kHz)
• 280
• Switching frequency (Max) (kHz)
• 1600
• Features
• Enable, Frequency Synchronization, Power Good, Synchronous Rectification
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• Voltage Mode
• Duty cycle (Max) (%)
• 90

TPS54917的完整型号有：TPS54917RUVR、TPS54917RUVT，以下是这些产品的关键参数及官网采购报价：

TPS54917RUVR，工作温度：-40 to 125，封装：VQFN (RUV)-34，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPS54917RUVR的批量USD价格：2.42（1000+）

TPS54917RUVT，工作温度：-40 to 125，封装：VQFN (RUV)-34，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPS54917RUVT的批量USD价格：2.904（1000+）

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TPS54917 Unencrypted PSpice Transient Model Package (Rev. A)

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)