Microchip Technology, Inc. 2MHz 600mA Buck + Dual 300mA LDO w/ LowQ Mode MIC2800

Description
The MIC2800 is a high performance power management IC, giving three output voltages with maximum efficiency. Integrating a 2MHz DC/DC converter with an LDO post regulator, the MIC2800 gives two high efficiency outputs with a second, 300mA LDO for maximum flexibility. The MIC2800 features a LowQ® mode, reducing the total current draw while in this mode to less than 30µA. In LowQ® mode, the output noise of the DC to DC converter is 75µVRMS, significantly lower than other converters which use a PFM light load mode that can interfere with sensitive RF circuitry.The DC to DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600mA.The MIC2800 is a μCap design, operating with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost. Also, checkout MPU power solutions with MIC2800. Go to Treelinktool under DC/DC converters and MPU Power for further information. Additional Features 2.7V to 5.5V input voltage range 2MHz DC/DC converter and two stand-alone LDOs LDO1: Low input voltage is powered directly from DC/DC converter for highest efficiency Integrated power-on reset (OR function for all outputs) Adjustable delay time LowQ® mode 30µA Total IQ when in LowQ® mode DC to DC Converter Output current to 600mA in PWM mode LowQ® Mode: no noise light load mode 75µVRMS output noise in LowQ® mode 2 MHz PWM operation in normal mode >90% efficiency LDOs LDO1 input voltage directly connected to DC/DC converter output voltage for maximum efficiency Ideal for 1.8V to 1.5V conversion 300mA output current from 1.8V input Output voltage down to 0.8V LDO2: 300mA output current capable Thermal Shutdown Protection Current Limit Protection
Datasheet
Description
The MIC2800 is a high performance power management IC, giving three output voltages with maximum efficiency. Integrating a 2MHz DC/DC converter with an LDO post regulator, the MIC2800 gives two high efficiency outputs with a second, 300mA LDO for maximum flexibility. The MIC2800 features a LowQ® mode, reducing the total current draw while in this mode to less than 30µA. In LowQ® mode, the output noise of the DC to DC converter is 75µVRMS, significantly lower than other converters which use a PFM light load mode that can interfere with sensitive RF circuitry.The DC to DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600mA.The MIC2800 is a μCap design, operating with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost. Also, checkout MPU power solutions with MIC2800. Go to Treelinktool under DC/DC converters and MPU Power for further information. Additional Features 2.7V to 5.5V input voltage range 2MHz DC/DC converter and two stand-alone LDOs LDO1: Low input voltage is powered directly from DC/DC converter for highest efficiency Integrated power-on reset (OR function for all outputs) Adjustable delay time LowQ® mode 30µA Total IQ when in LowQ® mode DC to DC Converter Output current to 600mA in PWM mode LowQ® Mode: no noise light load mode 75µVRMS output noise in LowQ® mode 2 MHz PWM operation in normal mode >90% efficiency LDOs LDO1 input voltage directly connected to DC/DC converter output voltage for maximum efficiency Ideal for 1.8V to 1.5V conversion 300mA output current from 1.8V input Output voltage down to 0.8V LDO2: 300mA output current capable Thermal Shutdown Protection Current Limit Protection
Datasheet

Suppliers

Company
Product
Description
Supplier Links
2MHz 600mA Buck + Dual 300mA LDO w/ LowQ Mode - MIC2800 - Microchip Technology, Inc.
Chandler, AZ, United States
2MHz 600mA Buck + Dual 300mA LDO w/ LowQ Mode
MIC2800
2MHz 600mA Buck + Dual 300mA LDO w/ LowQ Mode MIC2800
The MIC2800 is a high performance power management IC, giving three output voltages with maximum efficiency. Integrating a 2MHz DC/DC converter with an LDO post regulator, the MIC2800 gives two high efficiency outputs with a second, 300mA LDO for maximum flexibility. The MIC2800 features a LowQ® mode, reducing the total current draw while in this mode to less than 30µA. In LowQ® mode, the output noise of the DC to DC converter is 75µVRMS, significantly lower than other converters which use a PFM light load mode that can interfere with sensitive RF circuitry.The DC to DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600mA.The MIC2800 is a μCap design, operating with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost. Also, checkout MPU power solutions with MIC2800. Go to Treelinktool under DC/DC converters and MPU Power for further information. Additional Features 2.7V to 5.5V input voltage range 2MHz DC/DC converter and two stand-alone LDOs LDO1: Low input voltage is powered directly from DC/DC converter for highest efficiency Integrated power-on reset (OR function for all outputs) Adjustable delay time LowQ® mode 30µA Total IQ when in LowQ® mode DC to DC Converter Output current to 600mA in PWM mode LowQ® Mode: no noise light load mode 75µVRMS output noise in LowQ® mode 2 MHz PWM operation in normal mode >90% efficiency LDOs LDO1 input voltage directly connected to DC/DC converter output voltage for maximum efficiency Ideal for 1.8V to 1.5V conversion 300mA output current from 1.8V input Output voltage down to 0.8V LDO2: 300mA output current capable Thermal Shutdown Protection Current Limit Protection

The MIC2800 is a high performance power management IC, giving three output voltages with maximum efficiency. Integrating a 2MHz DC/DC converter with an LDO post regulator, the MIC2800 gives two high efficiency outputs with a second, 300mA LDO for maximum flexibility. The MIC2800 features a LowQ® mode, reducing the total current draw while in this mode to less than 30µA. In LowQ® mode, the output noise of the DC to DC converter is 75µVRMS, significantly lower than other converters which use a PFM light load mode that can interfere with sensitive RF circuitry.The DC to DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600mA.The MIC2800 is a μCap design, operating with very small ceramic output capacitors and inductors for stability, reducing required board space and component cost.

Also, checkout MPU power solutions with MIC2800. Go to Treelinktool under DC/DC converters and MPU Power for further information.

Additional Features

    • 2.7V to 5.5V input voltage range
    • 2MHz DC/DC converter and two stand-alone LDOs
      • LDO1: Low input voltage is powered directly from DC/DC converter for highest efficiency
    • Integrated power-on reset (OR function for all outputs)
      • Adjustable delay time
    • LowQ® mode
      • 30µA Total IQ when in LowQ® mode
    DC to DC Converter
    • Output current to 600mA in PWM mode
    • LowQ® Mode: no noise light load mode
      • 75µVRMS output noise in LowQ® mode
    • 2 MHz PWM operation in normal mode
    • >90% efficiency
    LDOs
    • LDO1 input voltage directly connected to DC/DC converter output voltage for maximum efficiency
      • Ideal for 1.8V to 1.5V conversion
      • 300mA output current from 1.8V input
      • Output voltage down to 0.8V
    • LDO2: 300mA output current capable
    • Thermal Shutdown Protection
    • Current Limit Protection
Supplier's Site Datasheet

Technical Specifications

  Microchip Technology, Inc.
Product Category IC Power Supplies
Product Number MIC2800
Product Name 2MHz 600mA Buck + Dual 300mA LDO w/ LowQ Mode
Package Type Other; ['VQFN']
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