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Microchip MCP19035 | Demoboard ADM00445

MCP19035 600 KHZ BUCK CONTROLLER EVALUATION BOARD USER’S GUIDE

Overview

TopologyBuck Converter
Input voltage8-14 V
Switching frequency300-600 kHz
Output 11.8 V / 10 A
IC revisionA

Description

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 over temperature protection.A minimal number of external components are necessary to develop a complete, high-performance Synchronous Buck Converter power supply.

Features

  • Input Voltage Range: 8V to 14V
  • Output Voltage: 1.8V (can be adjusted by changing one resistor between 0.9V and 3.3V)
  • Maximum Output Current: 10A
  • 88% typical efficiency at 1.8V/10A output and 12V input
  • 600 kHz fixed switching frequency
  • On-board High Performance Power MOSFET Transistors
  • 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
  • Under Voltage Lockout (UVLO) with 4.2V and 3.6V typical thresholds

Typical applications

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

Products

Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(mΩ)
RDC typ.
(mΩ)
MaterialLR
(µH)
fres
(MHz)
Samples
7443340100
STE ALT EAG CAD LTS PSP SPE IGS CADWE-HCC SMT High Current Cube Inductor 1 17 24 3.9 3.6 Ferrite 0.97 147
Order Code Data­sheet
7443340100
Samples
Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(mΩ)
RDC typ.
(mΩ)
MaterialLR
(µH)
fres
(MHz)
Samples