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Analog Devices Inc. LT8330 Demo Board DC2018A

Analog Devices LT8330 Demo Board DC2018A enables evaluating the LT8330 Low IQ Boost/SEPIC/Inverting Converter. The LT8330 allows higher input and output voltages than comparable converters, significantly reducing input current at light loads and no load. The LT8330 regulates either positive or negative outputs and has an internally programmed switching frequency of 2MHz. The LT8330 Demo Board DC2018A consists of two circuits. One circuit is a boost converter with an operating input voltage range from 10V to 36V and an output voltage of 48V. The second circuit is an inverting converter that demonstrates a negative output. The operating input voltage range of the inverting converter is from 4V to 36V, while the output voltage is -12V.

For both of the DC2018A circuits, the output voltage is programmed by resistor divider feedback. The voltage divider uses high resistance values that minimize current leakage, and the feedback network also includes a 4.7pF feedforward capacitor. Each DC2018A circuit also uses a low leakage rectifier diode further to minimize input current at light loads and no load. The input supply for power to the inductor can be separated from the LT8330 VIN pin to allow operation from two input sources.

Specifications

  • Boost converter
    • Input Supply Range (VIN) of 10V to 36V
    • Output Voltage Range (VOUT) of 45.8V to 49.4V
    • Output Current (IOUT):
      • at VIN = 10V, 110mA
      • at VIN = 12V, 135mA
      • at VIN = 24V, 210mA
      • at VIN = 36V, 400mA
    • Efficiency @VIN = 12V (EFF) of 89%
    • Switching Frequency (fSW) of 2MHz
  • Inverting converter
    • Input Supply Range (VIN) of 4V to 36V
    • Output Voltage Range (VOUT) of -12.5V to -11.5V
    • Output Current (IOUT):
      • at VIN = 4V, 170mA
      • at VIN = 12V, 270mA
      • at VIN = 24V, 280mA
      • at VIN = 36V, 280mA
    • Efficiency @VIN = 12V (EFF) of 89%
    • Switching Frequency (fSW) of 2MHz

Applicable Products

Analog Devices Inc. LT833x Converters

Boost/SEPIC/flyback/inverting converters with a quiescent current as low as 6μA.

Learn Moreacerca de Analog Devices Inc. LT833x Converters View Productsrelacionado con Analog Devices Inc. LT833x Converters

Test Equipment Setup

Mechanical Drawing - Analog Devices Inc. LT8330 Demo Board DC2018A
Publicado: 2019-06-24 | Actualizado: 2024-03-12