Datasheet

NXP Semiconductors
UM11183
KITFS85SKTEVM evaluation board
UM11183 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved.
User manual Rev. 3 — 6 December 2019
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a
a
a
-
0
3
2
7
65
VPRE_MON1
VPRE
VMON_08V
J22
1
2
3
GND
HDR 1X3
R191
22.1 kΩ
R217
0 Ω
DNP
R181
68.1 kΩ
BUCK2_MON2
BUCK2
VMON_08V
J23
1
2
3
GND
HDR 1X3
R190
22.1 kΩ
R180
27.4 kΩ
BUCK3_MON3
BUCK3
VMON_08V
J24
1
2
3
GND
HDR 1X3
R189
22.1 kΩ
R178
68.1 kΩ
LDO_MON4
LDO1
VMON_08V
J21
1
2
3
GND
HDR 1X3
R192
22.1 kΩ
R182
68.1 kΩ
LDO2
GND
R208
22.1 kΩ
R207
115 kΩ
Figure 2. VMONx configuration
4.1.3 VPRE compensation network
This board is delivered with a VPRE compensation network defined for VPRE 4.1 V at
450 kHz. All other VPRE configurations require a new calculation for these components.
a
aa
-
0
32
7
6
6
GND
450 KHz
C18
6800 pF
C14
150 pF
J12
1
2
3
R6
3.57 kΩ
GND
2.25 MHz
C19
1500 pF
C15
22 pF
R10
16.9 kΩ
Figure 3. VPRE compensation network