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TPS56428 - 产品图解：
TPS56428-具有 D-CAP2 模式和自动跳过 ECO-Mode 的 4.5V 至 18V 输入、4A 同步降压 转换器
TPS56428-转换器（集成开关）-DC/DC开关稳压器-电源管理
TPS56428-具有高级Eco-mode? 的4.5V 至18V 输入，4A 同步降压转换器 (Rev. A)
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TI产品 - TPS56428介绍

TPS56428 - 具有 D-CAP2 模式和自动跳过 ECO-Mode 的 4.5V 至 18V 输入、4A 同步降压 转换器

TPS56428是TI德州仪器公司的一款转换器（集成开关）产品，TPS56428是具有 D-CAP2 模式和自动跳过 ECO-Mode 的 4.5V 至 18V 输入、4A 同步降压 转换器，本站介绍了TPS56428的封装应用图解、特点和优点、功能等，并给出了与TPS56428相关的TI元器件型号供参考。

TPS56428 - 具有 D-CAP2 模式和自动跳过 ECO-Mode 的 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 at 650kHz Switching for Fast Transient Response, Ceramic Capacitor Support
  • VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.6 V to 7.0 V
  • Advanced Eco-mode for High Light Load Efficiency
  • Integrated FETs Optimized for Lower Duty Cycle – 68 mΩ (High Side) and 37 mΩ (Low Side)
  • Shutdown Current Less Than 10 μA
  • 1% Initial Reference Voltage Accuracy
  • Soft Start with Pre-Bias Output Support
  • Cycle By Cycle Over Current Limit
  • Power Good Output
  • Fixed Soft Start : 1.0ms
产品应用
  • Digital TV, High Definition Video Equipment
  • Networking Home Terminal
  • Digital Set Top Box (STB)
  • Network Controllers
产品说明

The TPS56428 is a D-CAP2 mode synchronous buck converter which is optimized for various power bus regulation needs with a cost effective, low component count, low standby current solution.

The D-CAP2 mode control provides a fast transient response with no external compensation components. This adaptive on-time control supports seamless transition between PWM mode at higher load conditions and advanced Eco-mode operation at light loads. Advanced Eco-mode™ maintains higher efficiency during lighter load conditions than traditional skip mode.

The TPS56428 also has a proprietary circuit 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 and its output voltage can be programmed between 0.6V and 7.0V. The device also features a fixed 1-ms soft start and a power-good output.

The TPS56428 is available in 8-pin SOIC-8 and 14-pin QFN packages designed to operate over the ambient temperature range of –40°C to 85°C.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS56428HSOP (8)4.89 mm × 3.9 mm
VQFN (14)3.5 mm × 3.5 mm
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