Pin
Symbol Function
32
TM1
Test mode 1:
Not for customer use. Leave this pin floating in the application.
33
MPS
Microcontroller programming mode
Connect this pin to ground for normal operation in the application. Optionally the pin
can be used for microcontroller programming purposes, see
.
34
IOVDD
I/O supply voltage:
Connect this pin to the I/O supply voltage of the microcontroller.
Add a decoupling capacitor.
35
SYNCO Synchronization output:
Optional: Connect this pin to an external switch-mode post-regulator synchronization
input. This pin delivers the internal switching frequency signal, either in phase or
shifted by 180°, depending on the settings via SPI. The switch-mode post-regulator
synchronizes to the rising edge.
If this pin is not used, then leave it floating.
36
SYNCI
Synchronization input:
Connect this pin to an optional external synchronization signal to synchronize the
switching of the internal switch-mode regulators. The feature needs to be enabled via
SPI.
If the pin is not used, then leave it floating.
37
SDO
Serial peripheral interface, signal data output:
SPI signalling port;
connect this pin to the SPI port "data input" of the microcontroller to send status
information during SPI communication.
38
SDI
Serial peripheral interface, signal data input:
SPI signalling port;
connect this pin to the SPI port "data input" of the microcontroller to receive status
information during SPI communication.
39
SCL
Serial peripheral interface, signal clock input:
SPI signalling port;
connect this pin to the SPI port "clock" of the microcontroller to clock the device for SPI
communication.
40
SCS
Serial peripheral interface, signal chip select:
SPI signalling port;
connect this pin to the SPI port "chip select" of the microcontroller to address the
device for SPI communication.
41
ROT
Reset output:
Open drain structure with internal pull up resistor.
"Low" indicates a reset event for the microcontroller.
Connect this pin to the microcontroller reset input.
42
INT
Interrupt output:
OPTIREG
™
PMIC TLF30681QVS01
Power management IC
Pin configuration
Datasheet
11
Rev. 1.0
2020-04-08
