Microchip Technology Inc

MCP1665

In Production

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.

 

    Features

        • 36V, 100 mΩ Integrated Switch
        • Up to 92% Efficiency
        • Higher Current Compared to the Previous MCP166x Switchers Family
        • Output Voltage Range: Up to 32V
        • 3.6A Typical Peak Input Current Limit:
          • 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
        • Input Undervoltage Lockout (UVLO):
          • 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
    Parameter Name
    Value
    Regulator Type
    Step Up (Boost)
    Input Voltage Range Min (V)
    2.7
    Input Voltage Range Max (V)
    5
    Output Voltage Range Max (V)
    32
    Quiescent Current (mA) typ
    0.25
    Switching Frequency (kHz)
    500
    Operating Temp Range
    -40 to 125
    Vfb (V)
    1.2
    Duty Cycle Max (%)
    90
    SHUTDOWN Current (µA) (Typ)
    0.4
    Light Load Efficiency Mode
    Yes
    Switch current (A) typ
    3.6
    Alternative Topology
    SEPIC, Flyback
    Documentation
    Data Sheets
    10/27/2017
    1143KB
      Application Notes
     
     
     
     
    AppNote
    03/14/2016
    765KB
      User Guides
     
     
     
     
    User Guides
    10/27/2017
    719KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MCP1665T-E/MRA
    10
    VQFN
    -40C to +125C
    T/R
    1.52
    1.27
    1.15
    1.07
    1.01

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • MCP1665 12V Boost Converter Eval Bd ( ADM00865 )

      MCP1665

      The MCP1665 12V output boost regulator evaluation board is intended to provide a platform allowing customers to easily evaluate the features of the MCP1665 device in a typical boost toplogy while also providing a reference for proper choice and layout of components that are critical to switching regulator implementations.

    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MCP1665T-E/MRA
    0.234849
    10
    VQFN
    2x2x0.9mm
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.