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Microchip MCP19035 | Demoboard ADM00434

MCP19035 300 kHz Synchronous Buck Controller Evaluation Board User's Guide

Overview

TopologyBuck Converter
Input voltage8-14 V
Switching frequency300-350 kHz
Output 11.8 V / 15 A
IC revisionA

Description

The MCP19035 is a highly-featured, highly-integrated, Synchronous Buck Controller in a space-saving 10-pin DFN 3 x 3 mm 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 on both the high- and low-side devices, 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.

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: 15A
  • 91% typical efficiency at 1.8V/15A output and 12V input
  • 300 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 a low-power Standby mode
  • Under Voltage Lockout (UVLO) with 4.5V and 3.9V (typical) thresholds

Typical applications

  • Digital Set-Top boxes
  • Medium current Point-of-Load converters, Industrial 24V rails converters, FPGA/DSP power supplies

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
MaterialLR
(µH)
Samples
7443320150SPEC
8 files WE-HCC SMT High Current Cube Inductor 1.5 25.7 26.5 29.1 3.5 Ferrite 1.43
Order Code Data­sheet Simu­lation
7443320150SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
MaterialLR
(µH)
Samples