STEVAL-ISA139V1 Datasheet, PDF (2/4 Pages) STMicroelectronics – 380 mA maximum output current

Schematic diagram
STEVAL-ISA139V1
1
Schematic diagram
Figure 1: STEVAL-ISA139V1 circuit schematic
J3
3.3V+
J4
3.3 V-
1
1
J2
1
- S1 (FB_SE L jumper) shorted to VCC
- S2 (EN_SE L jumper) shorted to VIN
- S3 (BYP_SE L jumper) shorted to OU T
VIN-
0
0
J1
VIN
1
J7
EXT_VCC+
1
J8
EXT_VCC-
1
1
C1
10n
2
0
J10
FB
1
FB
FB_SE L
2
OU T
S1
2M
13
R3
VCC
VIN
1M
R1
1M
R2
0
C2
1
2
0
ST PM6644
10n
1
10
2
REF
REF3 _{9BY P}
FB
BY P
3
8VCC
4
TON
VCC _7VIN
EN
VIN
5
EP
6
GND
SW
C4
1
2
0
1u
SW
1
EP
2
2
C5
C8
1
2.2u 1
2.2u
2
EN_SE L
0
S2
EXT_VCC
J9
R4
SW
31
VIN
1M
1
VIN+
2
1
33u
0
2OU T
BY P
C3
10n
BYP_SE L
1
2
3
S3
0
EXT_VCC
OU T
2
2
C7
C6
1
22u 1
22u
J 11
BY P
1
OU T
0
0
0
J5
1
VOUT+
J6
1
VOU T-
FB
34
EN
SW1
21
SW
BY P
0
GSPG2808141528SMD
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DocID026819 Rev 1