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Microchip MCP19035 | Demoboard ARD00514

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

Details

Topologie Abwärtswandler
Eingangsspannung 8-26 V
Schaltfrequenz 550-650 kHz
Ausgang 1 5 V / 4 A
IC-Revision A

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

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

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads Produktserie L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Bauform Version Muster
74477004
IGS STP ALT EAG CAD LTS PSP SPE CAD WE-PD SMT-Speicherdrossel 4.7 8.5 9.3 12 16 31.2 1280 Standard
Artikel Nr. Daten­blatt
74477004
Muster
Artikel Nr. Daten­blatt Downloads Produktserie L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Bauform Version Muster