IC-Hersteller Monolithic Power Systems

IC-Hersteller (104)

Monolithic Power Systems MP2143H

3A, 5.5V, 2.0MHz Synchronous Stepdown Switcher

Details

TopologieAbwärtswandler
Eingangsspannung2.5-5.5 V
Schaltfrequenz1800-3000 kHz
Ausgang 11.2 V / 3 A
IC-Revision1.0

Beschreibung

The MP2143H is a monolithic, step-down, switch-mode converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V to 5.5V input voltage with excellent load and line regulation. The output voltage can be regulated as low as 0.6V.

Constant-on-time control provides fast transient response and eases loop stabilization. Fault-condition protections include cycle-by-cycle current limiting and thermal shutdown.

The MP2143H is available in small QFN-10 package and requires only a minimal number of readily-available standard external components.

The MP2143H is ideal for a wide range of applications including high-performance DSPs, FPGAs, and portable instruments.

Eigenschaften

  • -Wide 2.5V to 5.5V Operating Input Range
  • -Output Voltage as Low as 0.6V
  • -100% Duty Cycle in Dropout
  • -Up to 3A Output Current
  • -80mΩ and 40mΩ Internal Power MOSFET Switches
  • -Default 2.0MHz Switching Frequency
  • -EN and Power-Good for Power Sequencing
  • -Cycle-by-Cycle Over-Current Protection
  • -Auto Discharge at Power Off
  • -Short-Circuit Protect with Hiccup Mode
  • -Stable with Low-ESR Output Ceramic Capacitors
  • -Available in QFN-10 (2mmx3mm) Package

Typische Anwendungen

  • Wireless/Networking Cards
  • Handheld/Battery-powered Systems
  • Low Voltage I/O System Power

Weiterführende Informationen

Artikeldaten

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Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Montageart
MusterVerfügbarkeit & Muster
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SPECWE-LHMI SMT Speicherdrossel, 0.47 µH, 8.7 A
Simu­lation
Verfügbarkeit
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Induktivität0.47 µH
Performance Nennstrom8.7 A
Sättigungsstrom 110.4 A
Sättigungsstrom @ 30%19.6 A
Gleichstromwiderstand14 mΩ
Eigenresonanzfrequenz122 MHz
MontageartSMT 
Verfügbarkeit prüfen