SP6641B Datasheet, PDF (1/5 Pages) Sipex Corporation – Low Noise Evaluation Board

SP6641A/6641B
Low Noise Evaluation Board
Easy Evaluation for the
SP6641A/6641B Single or
Dual Cell Alkaline to 3.3V or
5V Output
SP6641B provides up to
500mA output current with
less than 50mVpp ripple
High Efficiency: up to 87%
SOT23-5 Package & SMT
components for small, low
SP6641A/6641B Evaluation Board Schematics
VBATT
0.9V to 3.3V
J1 SHDN
1
2
3
SP6641A 1 OR 2 CELL BOOST
U1 SP6641A
1uF Cer.
4
3
SHDN
VOUT
C3
2
GND
5
VBATT
1
LX
L1 22uH
D1
VOUT
C2
22uF
Ceramic
C1
22uF
Ceramic
SCHOTTKY DIODE
VBATT
1.8V to 3.3V
J1 SHDN
1
2
3
SP6641B 2 CELL BOOST
U1 SP6641B
1uF Cer.
4
3
SHDN
VOUT
C3
2
GND
5
VBATT
1
LX
L1 10uH
D1
C1
100uF
80mohm
SCHOTTKY DIODE
VOUT
C2
330uF
40mohm
L2
SM Bead
VFILTER
C4
10uF Ceramic