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UC2573
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UC2573

  • Category:DC-DC-Controller
  • Product Name:Buck pulse width modulator step down regulator
  • Manufacturers:TI
  • Production Batch Number:08+
  • Encapsulation:SOP-8
  • Stock Status:There is stock
  • Stock Quantity:9000
  • Minimum order quantity: 1
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  • Product introduction

UC2573 Abwärts-Abwärtsregler mit Abwärtsimpulsweitenmodulator

illustrate

 

Der UC3573 von Barker ist eine Pulsweitenmodulation, die die positive Eingangsspannung regelt. Der Chip ist für den Einsatz in Einzelinduktivitäts-Abwärtswandlern mit externem PMOS-Schalter optimiert. The block consists of a high accuracy reference, voltage mode operation of an error amplifier, an oscillator, a PWM comparator with latching logic, and a 0.5A peak gate driver configuration. Der UC3573 verfügt über eine Unterspannungsabschaltung, um sicherzustellen, dass eine ausreichende Eingangsversorgungsspannung vorhanden ist, bevor eine Umwandlungsaktivität für einen Impuls zur Begrenzung des Impulsstroms auftreten kann. Der Eingangsstrom kann erfasst werden und beschränkt sich auf die Bestimmung des Maximalwertes des Benutzers. Darüber hinaus schaltet sich die Sleep-UVLO-Komparator-Schnittstellenschaltung ein und aus, wenn die Eingangsspannung unter dem UVLO-Schwellenwertchip liegt.

 

characteristic

 

  • Einfache PWM-Abwärtsregelung mit einer Induktivität
  • External PMOS switch of the hard disk
  • Contains UVLO circuitry
  • Includes pulse pass-through pulse current limiting
  • Niedriger Strom im Ruhemodus von 50 μA

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