MAX1605

PRODUCTION

30V Internal Switch LCD Bias Supply

Data Sheet (Rev. 2) Product Selection Table
Part Models
4
1ku List Price
Starting From $1.97
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Part Details

  • Adjustable Output Voltage up to 30V
  • 20mA at 20V from a Single Li+ Battery
  • 88% Efficiency
  • Up to 500kHz Switching Frequency
  • Selectable Inductor Current Limit (125mA, 250mA, or 500mA)
  • 18µA Operating Supply Current
  • 0.1µA Shutdown Current
  • Avaiable in Two Small Packages
    • 6-Pin TDFN
    • 6-Pin SOT23
MAX1605
30V Internal Switch LCD Bias Supply
MAX1605 Typical Application Circuit MAX1605: Functional Diagram
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Documentation

Data Sheet 1

Design Note 1

Technical Articles 3

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Evaluation Kits

MAX1605EVKIT

Evaluation Kit for the MAX1605

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Features and Benefits

  • Input Voltage
    • +0.8V to +18V (as configured)
    • +2.4V to +5.5V (IC VCC)
  • Output Voltage
    • +18V Output up to 30mA (as configured)
  • Output Voltage Adjustable with Resistors
  • Adjustable Inductor Current-Limit Setting
  • Internal MOSFET Switches
  • 1µA (typ) IC Shutdown Current
  • Switching Frequency up to 500kHz
  • Surface-Mount Components
  • Fully Assembled and Tested

Product Details

The MAX1605 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains a boost switching converter that generates a positive voltage to drive low-power LCD displays. The circuit is configured for a +18V output voltage and provides up to 30mA. Higher output voltages are possible by selecting different components.

The IC operates from a +2.4V to +5.5V supply voltage but can boost battery voltages as low as +0.8V up to +30V at the output. Three different inductor current limits can be evaluated with the EV kit as configured.

The MAX1605 EV kit demonstrates low quiescent current and high efficiency up to 88% for maximum battery life. Operation up to 500kHz allows the use of tiny surface-mount components.
MAX1605EVKIT
Evaluation Kit for the MAX1605

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