Murata PE25203 User Manual page 5

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Sensing points
Table 2 includes all the test points (TP) that can be found in the PE25203 evaluation kit (EVK). The aim of each TP
is to facilitate users the capture of waveforms from critical signals,
To make accurate measurements from input and output voltages, it is critical to use the SO and SI test points already
included in the PE25203 evaluation kit (EVK).
TEST POINT
EN
MODE
FF
+SO
-SO
+SI
-SI
EXT VDD
GND2 – GND5
EVK Connection
Connect the EVK and the measuring equipment as shown in the example below.
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DOC-102909-2 (05/2021)
SIGNAL NAME FUNCTION
EXT VDD External VDD supplied by the customer. The part does not need
this to be supplied to operate, but if externally applied, it can
increase the system efficiency.
AUTO div EN Enable auto division ratio.
AUTO div EN Connects Enable auto division ratio output to the MODE pin.
PGOOD On-board LED indicator for PGOOD.
Table 2. 2-way PCB header information.
DESCRIPTION
Status of the enable signal
Status of the mode signal
Status of the charge pump clock mode (Fixed Freq or Cycle Skip).
Positive TP to measure Vout
Negative TP to measure Vout
Positive TP to measure Vin
Negative TP to measure Vin
Positive TP to measure EXT VDD
GND reference TP
Table 3. Test point description.
PE25203 EVK User's Manual
High Efficiency Front-End DC-DC Converter
Page 5 of 11