DESCRIPTION

The SP6648 Evaluation Board is designed to help the user evaluate the performance of the

SP6648 for use as a single or dual cell input to +3.3V output DC-DC Converter. The output of

the SP6648 is preset to +3.3V or can be adjusted from +2V to +5.5V by manipulating two

external resistors. The evaluation board is a completely assembled and tested surface mount

board which provides easy probe access points to all SP6648 Inputs and Outputs so that the

user can quickly connect and measure electrical characteristics and waveforms.

SP6648 EVALUATION BOARD SCHEMATIC

RLIM

1.87K

LBON

VBATT

+ C2

47uF

3.3Vout

L1 10uH

C3

47pF

SP6648

1

2

4

5

6

7

8

3

9

10

VBATT

LBI

RLIM

SHDN

FB

GND

PGND

LBON

LX

VOUT

R2

124K

LBI

SHDN

R1

205K

C4

1uF

+

C1

47uF

Easy Evaluation for the

SP6648 Single or Dual Cell

Alkaline to 2V to 5V Output

Provides 300mA output at

3.3V output for 2.0V Input

High Efficiency: 94%

µSOIC Package & SMT

components for small, low

profile Power Supply

SP6648

Evaluation Board Manual