IC-Hersteller Microchip

IC-Hersteller (103)

Microchip MCP19035 | Demoboard ARD00514

MCP19035 600 kHz High Voltage Synchronous Buck Controller reference design User's Guide

Details

TopologieAbwärtswandler
Eingangsspannung8-26 V
Schaltfrequenz550-650 kHz
Ausgang 15 V / 4 A
IC-RevisionA

Beschreibung

The MCP19035 is a highly-featured, highly-integrated, synchronous buck controller in a space-saving 10-pin DFN 3x3 package that operates from input voltage sources up to 30V. Integrated features include high and low-side MOSFET drivers, fixed-frequency voltage mode control, internal oscillator and reference voltage generator, overcurrent protection circuit for both sides, Power Good circuit and overtemperature protection. A minimal number of external components are necessary to develop a complete, high-performance Synchronous Buck Converter power supply.

Eigenschaften

  • Input Voltage Range: 8V to 26V
  • Output Voltage: 5V (can be adjusted by changing one resistor between 3.3V and 5V)
  • Maximum output current: 5A
  • 93% typical efficiency at 5V/5A output and 24V input
  • 600 kHz fixed switching frequency
  • Overcurrent protection for high and low-side MOSFETs
  • Power Good (PGOOD) output for monitoring the output voltage quality
  • Shutdown input for placing the converter in low-power Standby mode
  • Undervoltage Lockout (UVLO) with 4.5V and 3.9V typical thresholds

Typische Anwendungen

  • High-power LED drivers
  • Industrial 24V rail converters
  • Digital Set-Top boxes
  • USB power ports
  • Medium currents Point-of-Load converters, FPGA/DSP power supplies

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
L(µH)
ISAT,10%(A)
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Bauform
Version
Muster
WE-PD Speicherdrossel, 4.7 µH, 11 A
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Induktivität4.7 µH
Sättigungsstrom 111 A
Sättigungsstrom @ 30%14.3 A
Nennstrom9.5 A
Performance Nennstrom11 A
Gleichstromwiderstand12 mΩ
Eigenresonanzfrequenz31.2 MHz
Bauform1280 
VersionGestanzt