Demoboard ARD00514

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

Topologie: Buck
Eingangsspannung (min.): 8.00 V
Eingangsspannung (max.): 26.00 V
Schaltfrequenz (min.): 550.00 kHz
Schaltfrequenz (max.): 650.00 kHz
Ausgang 1: 5.00 V / 4.000 A

Erstveröffentlichung am 09.07.2014, Version A vom


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.


  • 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


  Artikel Nr. SPEC Produktserie L
RDC typ.
RDC max.
Version Muster
74477004 PDF WE-PD SMT-Speicherdrossel 4.7 8.5 9.3 12 16 31.2 Standard