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TPS51222
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TPS51222

  • Category:DC-DC-Controller
  • Product Name:Fixed frequency 99% duty cycle peak current mode notebook system power controller
  • Manufacturers:TI
  • Production Batch Number:09+
  • Encapsulation:QFN32
  • Stock Status:There is stock
  • Stock Quantity:9000
  • Minimum order quantity: 1
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  • Product introduction

TPS51222 Контроллер питания системы ноутбука с фиксированной частотой 99% рабочего цикла 99%

illustrate

 

TPS51222 представляет собой двойной синхронный понижающий регулятор с двумя контроллерами LDO. This technology optimizes the 5-V/3.3-V system controller, cost-effectively powering 2- to 4-cell notebook computers. TPS51222 поддерживает высокую эффективность, быструю переходную характеристику и рабочий цикл 99%. Он поддерживает входное напряжение в диапазоне от 4,5 В до 32 В при напряжении питания 1 В и выходное напряжение 12 В, а режим пикового тока поддерживает стабильную работу с емкостью ESR и низкой точностью вывода. Работа с высоким рабочим циклом (99%) и широкий диапазон входного/выходного напряжения поддерживают гибкие мобильные конструкции малого форм-фактора и множество других приложений. Фиксированные частоты могут использоваться с сопротивлением от 200 кГц до 1 МГц и работать на 180° вне фазы на канал.

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characteristic

 

  • Input voltage range: 4.5 V to 32 virtual
  • Output voltage range: 1 V to 12 V
  • Опционально работа с малой нагрузкой
    (Непрерывный/автоматический пропуск звука в/выход)
  • Programmable sag compensation
  • Voltage servo adjustable soft start
  • Fixed frequency PWM from 200 kHz to 1 MHz
  • Current mode architecture
  • 180° phase-shift channel
  • Resistive or inductive DCR current sensing
  • Текущий выход монитора для каждого канала
  • Adaptive zero-cross circuit
  • Power good outputs per channel
  • Octopus card company/overvoltage protection/UVP/undervoltage lockout protection function
  • Thermal shutdown (non-latching)
  • Функция выходного разряда
  • Start-up with integrated MOSFET switch
  • Выпускается в корпусе QFN-32

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