Laird BL654 - Page 13

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13
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Figure 5: Schematic and PCB location of SB24
U19
Dual OP,10uA/amp
OUT1
1
INV IN1
2
Non-INV IN1
3
VCC-
4
Non-INV IN2
5
INV IN2
6
OUT2
7
VCC+
8
R137
1M
U20
Load-Switch-IC,1A
VOUT
1
GND
2
CONTROL
3
NC
4
VIN
5
VDD_nRF_SENSE
R52
0R
VDD_nRF_SENSE
V5V
Q2
DUAL-NCH,+20V,800mA
S1
1
G1
2
D2
3
D1
6
G2
5
S2
4
GND
VSUPPLY_EN
R61
1M
C18
0.1uF,16V
GND
GND
GND
GND
Q3
NPN,+45V,2.0A
GND
SB15NOPOP (Solderbridge_Open)
1
1
2
2
VSUPPLY U21
Load-Switch-IC,1A
VOUT
1
GND
2
CONTROL
3
NC
4
VIN
5
VDD_VSRC_nRF
SB24
NOPOP (Solderbridge_Open)
1
1
2
2