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TPS5120-EP - 产品图解:
TPS5120-EP-增强型产品双路输出二相同步降压 Dc/Dc 控制器
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TI产品 - TPS5120-EP介绍
TPS5120-EP - 增强型产品双路输出二相同步降压 Dc/Dc 控制器

TPS5120-EP是TI公司的一款控制器(外部开关)产品,TPS5120-EP是增强型产品双路输出二相同步降压 Dc/Dc 控制器,本页介绍了TPS5120-EP的产品说明、应用、特性等,并给出了与TPS5120-EP相关的TI元器件型号供参考。

TPS5120-EP - 增强型产品双路输出二相同步降压 Dc/Dc 控制器 - 控制器(外部开关) - DC/DC开关稳压器 - TI公司(Texas Instruments,德州仪器)

产品描述

The TPS5120 is a dual channel, high-efficiency synchronous buck controller where the outputs run 180 degrees out of phase, which lowers the input current ripple, thereby reducing the input capacitance cost. The PWM/SKIP pin allows the operating mode to switch from PWM mode to skip mode under light load conditions. The skip mode enables a lower operating frequency and shortens the pulse width to the low-side MOSFET, increasing the efficiency under light load conditions. These two modes, along with synchronous-rectifier drivers, dead time, and very low quiescent current, allow power to be conserved and the battery life to be extended under all load conditions. The 1.5 A (typical) high-side and low-side MOSFET drivers on-chip are designed to drive less expensive N-channel MOSFETs. The resistorless current protection and fixed high-side driver voltage simplify the power supply design and reduce the external parts count. Each channel is independent, offering a separate controller, overcurrent protection, and standby control. Sequencing is flexible and can be tailored by choosing different softstart capacitor values. Other features, such as undervoltage lockout, power good, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability.

产品特性

  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of –55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree
  • Independent Dual-Outputs Operate 180° Out of Phase
  • Wide Input Voltage Range: 4.5-V – 28-V
  • Adjustable Output Voltage Down to 0.9 V
  • Pin-Selectable PWM/SKIP Mode for High Efficiency Under Light Loads
  • Synchronous Buck Operation Allows up to 95% Efficiency
  • Separate Standby Control and Overcurrent Protection for Each Channel
  • Programmable Short-Circuit Protection
  • Low Supply (1 mA) and Shutdown (1 nA) Current
  • Power Good Output
  • High-Speed Error Amplifiers
  • Sequencing Easily Achieved by Selecting Softstart Capacitor Values.
  • 5-V Linear Regulator Power Internal IC Circuitry
  • 30-Pin TSSOP Packaging

Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

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