Demoboard AN2085

Designing Applications with MCP166X High Output Voltage Boost Converter Family

Topology: Boost
Input Voltage (min.): 9.00 V
Input Voltage (max.): 16.00 V
Output 1: 24.00 V / 0.500 A


This document aims to assist engineers in designingdifferent power applications and to provide an insight onhow a simple, Non-Synchronous Boost Converter can beused to develop solutions for non-typical requirements.The following paragraphs will provide examples of converterapplications that fulfill a wide variety of the industryrequirements.The solutions provided by Microchip Technology Inc.highlight the use of the MCP1661/3 boost (step-up) regulators,which provide the necessary flexibility required indealing with the increasing range of the technological fielddemands.


  • Wide Output Voltage Range: Up to 32V• Typical Input Peak Current Limit:
  • 1.3A (MCP1661)
  • 1.8A (MCP1663)• Input Voltage Range: 2.4V-5.5V• Undervoltage Lockout (UVLO):
  • UVLO @ VIN Rising: 2.3V, typical
  • UVLO @ VIN Falling: 1.85V, typical• Pulse-Width Modulator (PWM) Operation withSkip Mode: 500 kHz• Output Overvoltage Protection (OVP) forMCP1661/3 in the event of:
  • Feedback pin shorted to GND
  • Disconnected feedback divider• Internal Compensation• Peak Current Mode Control• Available Packages (pin to pin compatible):5-Lead SOT-23 and 2x3 mm, 8-Lead TDFN


  Order Code SPEC Product series L
RDC typ.
RDC max.
Bauform Version Samples
74477810 PDF WE-PD SMT Power Inductor 10 1.83 2.2 68 72 32 7332 Standard

Other applications and Würth Elektronik products for this IC

  • MCP1663
    Topology: Boost, Input Voltage (min.): 5.00 V, Input Voltage (max.): 5.00 V, Output 1: 24.00 V / 0.120 A
  • MCP1663
    Topology: Boost, Input Voltage (min.): 3.00 V, Input Voltage (max.): 4.20 V
  • MCP1663
    Topology: Flyback, Input Voltage (min.): 4.25 V, Input Voltage (max.): 5.25 V, Output 1: 5.00 V / 0.200 A
  • MCP1663
    Topology: Flyback, Input Voltage (min.): 3.30 V, Input Voltage (max.): 4.20 V
  • MCP1663
    Topology: SEPIC, Input Voltage (min.): 9.00 V, Input Voltage (max.): 16.00 V
  • MCP1663
    Topology: SEPIC, Input Voltage (min.): 2.40 V, Input Voltage (max.): 5.50 V, Output 1: 3.30 V / 0.150 A