UM10895
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© NXP Semiconductors N.V. 2018. All rights reserved.
User manual
Rev. 4 — 12 November 2018
14 of 22
NXP Semiconductors
UM10895
QN9020 mini DK user guide
Fig 18. Power schematic for all mini DK versions
aaa-018345
1
5
VIN
V5
VBUS
TP2
R25
0 Ω
VOUT
C29
0.1 μF
C26
10 nF
C30
10 μF
16 V
J13
J11
JUMP2
JUMP3
MB_VCC_3.3V
U2
GND
GND
2
GND
3
BAT1
battery
1
2
2
3
1
3
4
EN
NR/FB
TPS73633
J12
R24
0 Ω
JUMP2
QN_VCC_3.3V
QN current test
Note:
connect jumper J11 PIN2, 3 LDO as a power supply
connect jumper J11 PIN1, 2 battery as a power supply
QN_VIO