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Microchip MCP16301 | Demoboard ADM00352

High-Voltage Input Integrated Switch Step-Down Regulator

Overview

TopologyBuck Converter
Input voltage4-30 V
Output 115 V / 0.6 A
IC revision1

Description

The MCP16301/H devices are highly integrated, high-efficiency, fixed-frequency, step-down DC-DC converters in a popular 6-pin SOT-23 package that operates from input voltage sources up to 36V. Integrated features include a high-side switch, fixed-frequency peak current mode control, internal compensation, peak current limit and overtemperature protection. Minimal external components are necessary to develop a complete step-down DC-DC converter power supply. High converter efficiency is achieved by integrating the current-limited, low-resistance, high-speed N-Channel MOSFET and associated drive circuitry. High switching frequency minimizes the size of external filtering components, resulting in a small solution size. The MCP16301/H devices can supply 600 mA of continuous current while regulating the output voltage from 2.0V to 15V. An integrated, high-performance peak current mode architecture keeps the output voltage tightly regulated, even during input voltage steps and output current transient conditions that are common in power systems. The EN input is used to turn the device on and off. While turned off, only a few micro amps of current are consumed from the input for power shedding and load distribution applications. Output voltage is set with an external resistor divider. The MCP16301/H devices are offered in a space-saving SOT-23-6 surface mount package.

Features

  • Up to 96% Typical Efficiency
  • Input Voltage Range:
  • 4.0V to 30V (MCP16301)
  • 4.7V to 36V (MCP16301H)
  • Output Voltage Range: 2.0V to 15V
  • 2% Output Voltage Accuracy
  • Qualification: AEC-Q100 Rev G, Grade 1 (-40°C to +125°C)
  • Integrated N-Channel Buck Switch: 460 m Minimum 600 mA Output Current Over All Input Voltage Range (See Figure 2-6 for Maximum Output Current vs. IN):
  • up to 1A output current at 3.3V, 5V and 12V VOUT, SOT-23 package at +25°C ambient temperature
  • 500 kHz Fixed Frequency
  • Adjustable Output Voltage
  • Low Device Shutdown Current
  • Peak Current Mode Control
  • Internal Compensation
  • Stable with Ceramic Capacitors
  • Internal Soft-Start
  • Cycle-by-Cycle Peak Current Limit
  • Undervoltage Lockout (UVLO): 3.5V
  • Overtemperature Protection
  • Available Package: SOT-23-6

Typical applications

  • Automotive
  • Medical and Health Care
  • D2 Package Linear Regulator Replacement / Distributed Power Supplies
  • Set-Top Boxes / Consumer
  • PIC Microcontroller and dsPIC® Digital Signal Controller Bias Supply / 24V Industrial Input DC-DC Conversion / Wall Cube Regulation / SLA Battery-Powered Devices / AC-DC Digital Control Power Source / Power Meters
  • DSL Cable Modems

Products

Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
fres
(MHz)
Mount Samples
744025150SPEC
9 files WE-TPC SMT Tiny Power Inductor 15 0.72 0.9 356 32 SMT
744031150SPEC
9 files WE-TPC SMT Tiny Power Inductor 15 0.62 0.45 255 30 SMT
744042150SPEC
9 files WE-TPC SMT Tiny Power Inductor 15 1.03 0.75 190 35 SMT
Samples
Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
fres
(MHz)
Mount Samples