Microchip MCP1665T-E/MRA
Microchip MCP1665T-E/MRA

Microchip MCP1665T-E/MRA

Manufacturer No:

MCP1665T-E/MRA

Manufacturer:

Microchip

Package:

10-VFQFN Exposed Pad

Description:

High Voltage Output (32V) Boost Regulator, 3.6A

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MCP1665T-E/MRA Information

Microchip MCP1665T-E/MRA technical specifications, attributes, parameters and parts with similar specifications to Microchip MCP1665T-E/MRA.

  • Type
  • Parameter
  • Max Duty Cycle (%)
  • 90
  • Input Voltage Range Max V (volt)
  • 5
  • Input Voltage Range Min V (volt)
  • 2.7
  • # of Outputs
  • 1
  • Output Current
  • 1000
  • Driver Type
  • Boost
  • Quiescent Current µA (microampere)
  • 0.25
  • Synchronous Rectifier
  • No
  • Temp Range Max °C (degrees Celsius)
  • 125
  • Temp Range Min °C (degrees Celsius)
  • -40
  • Type
  • Parameter
  • Topology
  • SEPIC, Flyback
  • VOUT Max V (volt)
  • 32.0
  • VFB V (volt)
  • 1.2

Download datasheets and manufacturer documentation for Microchip MCP1665T-E/MRA.

The MCP1665 device is a compact, high-efficiency, fixed-frequency, non-synchronous step-up DC-DC converter that integrates a 36V, 100 mΩ NMOS switch. It provides a space-efficient high-voltage step-up power supply solution for applications powered by either three-cell alkaline, Ultimate Lithium, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. The integrated switch is protected by the typical 3.6A cycle-by-cycle inductor peak current limit operation. There is an output overvoltage protection and an open-load protection that turn off switching if the feedback resistors are accidentally disconnected, the feedback pin is short-circuited to GND or the output is exposed to excessive voltage. Pulse-Frequency Modulation (PFM) switching mode used for power saving is implemented, and it is selectable by the dedicated MODE pin.

MCP1665 is easy to use and allows creating classic boost, SEPIC or flyback DC-DC converters within a small Printed Circuit Board (PCB) area. All compensation and protection circuitry are integrated to minimize the number of external components.



  • 36V, 100 mΩ Integrated Switch
  • Up to 92% Efficiency
  • Higher Current Compared to the Previous MCP166x Switchers Family
  • Output Voltage Range: Up to 32V
  • IOUT > 1 A at 5.0V VIN, 12V VOUT
  • IOUT > 700 mA at 3.3V VIN, 12V VOUT
  • IOUT > 400 mA at 4.2V VIN, 24V VOUT
  • Input Voltage Range: 2.9V to 5V
  • UVLO at VIN Rising: 2.9V, typical
  • UVLO at VIN Falling: 2.7V, typical
  • No Load Input Current: 250 μA Typically for PFM, 500 μA Typically for PWM
  • Shutdown Mode with 0.4 μA Typical Quiescent Current
  • Automatically PFM/PWM or Selected by the MODE Pin, for High Efficiency
  • 500 kHz PWM Operation with Skipping Mode Operation Selectable by Dedicated MODE Pin
  • Feedback Voltage Reference: VFB = 1.2V
  • Cycle-by-Cycle Current Limiting
  • Internal Compensation
  • Inrush Current Limiting and Internal Soft Start
  • Output Overvoltage Protection (OVP) and Open-Load Protection (OLP) for Constant Current Configuration
  • Thermal Shutdown
  • Easily Configurable for SEPIC, Cuk or Flyback Topologies
  • Available Package: 10-Lead 2x2 mm VQFN

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