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TPS54427 - 产品图解：
TPS54427-4.5V 至 18V 输入、4A 同步降压转换器
TPS54427-转换器（集成开关）-DC/DC开关稳压器-电源管理
TPS54427-具有集成FET (SWIFT?) 的4.5 V至18V 输入、4A 输出单路同步降压转换 (Rev. A)
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TI产品 - TPS54427介绍

TPS54427 - 4.5V 至 18V 输入、4A 同步降压转换器

TPS54427是TI德州仪器公司的一款转换器（集成开关）产品，TPS54427是4.5V 至 18V 输入、4A 同步降压转换器，本站介绍了TPS54427的封装应用图解、特点和优点、功能等，并给出了与TPS54427相关的TI元器件型号供参考。

TPS54427 - 4.5V 至 18V 输入、4A 同步降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications – 70 mΩ (High Side) and 53 mΩ (Low Side)
  • High Efficiency, Less Than 10 μA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 650-kHz Switching Frequency (fSW)
  • Cycle by Cycle Over Current Limit
产品应用
  • Wide Range of Applications for Low Voltage System
    • Digital TV Power Supply
    • High Definition Blu-rayDisc™ Players
    • Networking Home Terminal
    • Digital Set Top Box (STB)
产品说明

The TPS54427 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54427 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution.

The main control loop for the TPS54427 uses the D-CAP2™ mode control which provides a fast transient response with no external compensation components.

The TPS54427 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.

The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 7 V.

The device also features an adjustable soft start time.

The TPS54427 is available in the 8-pin DDA package and 10-pin DRC, and is designed to operate from –40°C to 85°C.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS54427SO PowerPAD™ (8)4.89 mm × 3.90 mm
VSON (10)3.00 mm × 3.00 mm
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