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FULL DATA SHEET (PDF, 140kB) Download   E-Mail The MAX1748 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains a boost switching regulator and two charge-pump voltage- regulator circuits. The boost switching circuit is configured for a +10V output that provides up to 200mA of current from a supply voltage of +2.7V to +5.5V. The positive charge-pump circuit is configured for a +15V output that provides > 20mA of current. The negative charge-pump circuit is configured for a -5V output and provides > 20mA of current. Power for either or both charge-pump inputs can be provided from the +2.7VDC to +5.5VDC source or from the boost switching- regulator output. The MAX1748 EV kit demonstrates low-quiescent current and high efficiency (over 86%) for maximum battery life. Operation at 1MHz allows the use of tiny surface- mount components. The MAX1748 TSSOP package (1.1mm max) with low-profile external components allows this circuit to be less than 1.2mm high. The MAX1748 EV kit can also be used to evaluate the MAX1779 IC.

Key Features		Applications/Uses
+2.7V to +5.5V Input Range (as Configured) Output Voltages +10V Output at 200mA (Boost Switching) +15V Output > 20mA (Positive Charge-Pump Regulator) -5V Output > 20mA (Negative Charge-Pump Regulator) Outputs Are Adjustable with Resistors >85% Efficiency Internal MOSFET Switches 0.1µA (typ) IC Shutdown Current 1MHz Boost Switching Frequency, 500kHz Charge-Pump Switching Frequency Low Profile Evaluates MAX1779 (Component Replacement Required) Surface-Mount Components Fully Assembled and Tested		LCD Displays and Panels Notebook Computers Organizers Palmtop Computers PDAs

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