MAX1748EVKIT：Evaluation Kit for the MAX1748, MAX1779
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- +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
| Applications/Uses- LCD Displays and Panels
- Notebook Computers
- Organizers
- Palmtop Computers
- PDAs
|
DataSheet
Ordering Information
| Part Number | Status | Recommended Replacement | Package |
|---|
| MAX1748EVKIT | Active | | EVKIT; |
