NXP Semiconductors
UM11183
KITFS85SKTEVM evaluation board
UM11183
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User guide
Rev. 2.0 — 20 February 2019
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• Based on part number:
low voltage integrated synchronous BUCK2 converter.
Configurable output voltage and current capability up to 3.6 A peak. Multi-phase
capability with BUCK1 to extend the current capability up to 7.2 A peak on a single rail.
Static voltage scaling capability.
• Based on part number
: low voltage integrated synchronous BUCK3 converter.
Configurable output voltage and current capability up to 2.5 A typical peak.
•
BOOST converter with integrated low-side switch. Configurable output voltage and max
input current up to 1.5 A peak.
•
EMC optimization techniques including SMPS frequency synchronization, spread
spectrum, slew rate control, manual frequency tuning
•
2x linear voltage regulators for MCU IOs and ADC supply, external physical layer.
Configurable output voltage and current capability up to 400 mA DC.
•
Standby OFF mode with very low sleep current (10 μA typ)
•
2x input pins for wake-up detection and battery voltage sensing
•
Device control via 32 bits SPI or I2C interface with CRC
•
Power synchronization pin to operate 2x FS85 devices or FS85 plus an external PMIC
•
Scalable portfolio from ASIL B to ASIL D with independent monitoring circuitry,
dedicated interface for MCU monitoring, simple and challenger watchdog function,
power good, reset and interrupt, built-in self-test, fail-safe output
•
Configuration by OTP programming. Prototype enablement to support custom setting
during project development in engineering mode.
4.3.2 Indicators
The following LEDs are provided as visual output devices for the evaluation board:
Figure 13. Evaluation board indicator locations
Table 3. Evaluation board indicator descriptions
Label
Name
Color
Description
D1
V
BAT
Green
V
BAT
On
D2
LDO1
Green
LDO1 On
D3
LDO2
Green
LDO2 On