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TPS53128 - 产品图解：
TPS53128-用于低压电源轨的双路同步降压控制器
TPS53128-控制器（外部开关）-DC/DC开关稳压器-电源管理
TPS53128-format to meet latest data sheet standards; added new sections and moved existing sectionsTPS53128 Dual Synchronous Step-Down Controller With Auto-SkipEco-mode For Low Voltage Power Rails
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TI产品 - TPS53128介绍

TPS53128 - 用于低压电源轨的双路同步降压控制器

TPS53128是TI德州仪器公司的一款控制器（外部开关）产品，TPS53128是用于低压电源轨的双路同步降压控制器，本站介绍了TPS53128的封装应用图解、特点和优点、功能等，并给出了与TPS53128相关的TI元器件型号供参考。

TPS53128 - 用于低压电源轨的双路同步降压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • D-CAP2™ Mode Control
    • Fast Transient Response
    • No External Parts Required for Loop Compensation
    • Compatible With Ceramic Output Capacitors
  • High Initial Reference Accuracy (±1%)
  • Low Output Ripple
  • Wide Input Voltage Range: 4.5 V to 24 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Low-Side RDS(ON) Loss-Less Current Sensing
  • Adaptive Gate Drivers with Integrated Boost Diode
  • Adjustable Soft Start
  • Non-Sinking Pre-Biased Soft Start
  • 350-kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limiting Control
  • 30-mV to 300-mV OCP Threshold Voltage
  • Thermally Compensated OCP by 4000 ppm/°C at ITRIP
  • Auto-Skip Eco-mode™ for High Efficiency at Light Load
产品应用
  • Point-of-Load Regulation in Low Power Systems for Wide Range of Applications
    • Digital TV Power Supply
    • Networking Home Terminal
    • Digital Set-Top Box (STB)
    • DVD Player/Recorder
    • Gaming Consoles
产品说明

The TPS53128 is a dual, adaptive on-time D-CAP2™ mode synchronous buck controller. The part enables system designers to cost effectively complete the suite of various end equipment's power bus regulators with a low external component count and low standby consumption. The main control loop for the TPS53128 uses the D-CAP2™ Mode topology which provides a very fast transient response with no external component.

The TPS53128 also has a proprietary circuit that enables the device to adapt not only low equivalent series resistance (ESR) output capacitors such as POSCAP/SP-CAP, but also ceramic capacitor. The fixed frequency emulated adaptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency down to milliampere range. The part provides a convenient and efficient operation with conversion voltages from 4.5 V to 24 V and output voltage from 0.76 V to 5.5 V.

The TPS53128 is available in 4-mm x 4-mm 24 pin QFN (RGE) or 24 pin TSSOP (PW) packages, and is specified from -40°C to 85°C ambient temperature range.

Table 1. Device Information(1)
DEVICE NAMEPACKAGEBODY SIZE
TPS53128VQFN (24)4.4 mm x 7.8 mm
TSSOP (24)4 mm x 4 mm
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