Microchip

MCP1663
Demoboard AN2085

Designing Applications with MCP166X High Output Voltage Boost Converter Family

Topology: SEPIC
Input Voltage (min.): 2.40 V
Input Voltage (max.): 5.50 V
Output 1: 3.30 V / 0.150 A

Description

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.

Characteristics

  • 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

Products

  Order Code SPEC Product series L1
(µH)
L2
(µH)
IR 1
(A)
IR 2
(A)
ISAT 1
(A)
RDC1 typ
(Ω)
RDC2 typ
(Ω)
RDC1 max
(Ω)
RDC2 max
(Ω)
fres 1
(MHz)
Samples
744878004 PDF WE-DD SMT Shielded Coupled Inductor 4.7 4.7 1.3 1.3 3 0.065 0.065 0.075 0.075 46

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.): 9.00 V, Input Voltage (max.): 16.00 V, Output 1: 24.00 V / 0.500 A
  • MCP1663
    Topology: Flyback, Input Voltage (min.): 4.25 V, Input Voltage (max.): 5.25 V, Output 1: 5.00 V / 0.200 A