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MAX1889_EVKIT

Evaluation Kit for the MAX1889

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet Evaluation Kit for the MAX1889 Sep 10, 2002

Support & Training

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Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Key Features

  • 2.7V to 5.5V Input Range
  • Output Voltages
    • 9V Output at 200mA (Step-Up Switching)
    • 20V Output >10mA (Positive Charge-Pump Regulator)
    • -7V Output >10mA (Negative Charge-Pump Regulator)
  • Resistor-Adjustable Outputs
  • Up to Three Positive and Three Negative Charge-Pump Stages
  • Up to +28V and -22V Linear-Regulated Output (As Configured)
  • 90&% Efficiency
  • 500kHz/1MHz Step-Up Switching Frequency
  • Overcurrent Protection
  • Low Profile
  • Surface-Mount Components
  • Fully Assembled and Tested

Applications/Uses

  • Car-Navigation Displays
  • LCD Monitors
  • Notebook Computer Displays

Description

The MAX1889 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains a step-up switching regulator, a positive three-stage charge-pump and high-voltage positive linear-regulator controller, and a negative three-stage charge-pump and high-voltage negative linear-regulator controller. The step-up switching circuit is configured for a 9V output and provides up to 200mA from a DC supply voltage of 2.7V to 5.5V.

The positive charge-pump and linear regulator are configured for a 20V output using two charge-pump stages providing up to 10mA. The negative charge pump and linear regulator are configured for a -7V output using a single charge-pump stage providing up to 10mA. Power for the positive charge-pump input can be provided by the DC input source or the step-up switching regulator output. Power for the negative charge-pump input can be provided by the DC input source or the power ground.

The MAX1889 EV kit demonstrates low quiescent current and high efficiency (up to 90%) for maximum battery life. The EV kit features overload protection for the input and all outputs. Operation at 1MHz allows the use of tiny surface-mount components. The MAX1889 QFN package (1.0mm max) with low-profile external components allows this circuit to be 1.25mm high.

Simplified Block Diagram

Technical Docs

Data Sheet Evaluation Kit for the MAX1889 Sep 10, 2002

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.