SP6641BEK-L-3-3 Datasheet, PDF (1/5 Pages) Exar Corporation – Easy Evaluation for the SP6641A/6641B Single or Dual Cell Alkaline to 3.3V or 5V Output

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
SP6^p6^ro4^f1^ilA^e/^P66^o4^w1^eB^{r S}E^uv^pa^plu^lyation Board Schematics
VBATT
0.9V to 3.3V
J1 SHDN
SP6641A 1 OR 2 CELL BOOST
U1 SP6641A
1
1uF Cer.
2
3
4 _SHDN
V OUT ³
C3
GND ²
5 _VBATT
LX ¹
L1 22uH
D1
C1
22uF
Ceramic
SCHOTTKY DIODE
VOUT
C2
22uF
Ceramic
VBATT
1.8V to 3.3V
J1 SHDN
SP6641B 2 CELL BOOST
U1 SP6641B
1
1uF Cer.
2
3
4 _SHDN
VOUT ³
C3
GND ²
5 _VBATT
LX ¹
L1 10uH
D1
C1
100uF
80mohm
SCHOTTKY DIODE
VOUT
C2
330uF
40mohm
L2
SM Bead
VFILTER
C4
10uF Ceramic
Rev 07/17/02
SP6641A/6641B Evaluation Board Manual
Copyright Sipex Corporation