DESCRIPTION
The SP6644/6645 Evaluation Board is designed to help the user evaluate the performance of the SP6644/6645 for use as a single or dual cell input to +3.3V output DC-DC Converter. The output of the SP6644/6645 is preset to +3.3V or can be adjusted from +2V to +5.5V by manipulating two external resistors. The SP6644/6645UEB evaluation board is a complete power supply circuit with an option for adding a small SOT23 5-pin +3V LDO Regulator to provide even better regulation and low noise output.

■ Easy Evaluation for the SP6644/6645 Single or Dual Cell Alkaline to 3.3V Output
■ Provides up to 150mA output current for 2-Cell Input
■ High Efficiency: 92%
■ µSOIC Package & SMT components for small, low profile Power Supply