TPS54917 - 3V 至 4V 输入、9A 同步降压 SWIFT? 转换器

TPS54917是TI德州仪器公司的一款转换器（集成开关）产品，TPS54917是3V 至 4V 输入、9A 同步降压 SWIFT? 转换器，本站介绍了TPS54917的封装应用图解、特点和优点、功能等，并给出了与TPS54917相关的TI元器件型号供参考。

TPS54917 - 3V 至 4V 输入、9A 同步降压 SWIFT? 转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

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 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/logic reset, fault signaling, and supply sequencing.

The TPS54917 is available in a thermally enhanced 34 pin QFN (RUV) PowerPAD package, which eliminates bulky heatsinks. 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.

产品特性

13-mΩ MOSFET Switches for High Efficiency at 9-A Continuous Output
Adjustable Output Voltage Down to 0.9V 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 1.6MHz
Load Protected by Peak Current Limit and Thermal Shutdown
Small 3.5mm x 7mm Package and Similar Layout to TPS54910 Reduces Board Area and Total Cost
SWIFT Documentation Application Notes, and SwitcherPro Software: www.ti.com/swift
APPLICATIONS
- Low-Voltage, High-Density Systems With Power Distributed at 3.3 V
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
- Broadband, Networking and Optical Communications Infrastructure

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