Test Point - Murata Pe25203 User Manual

Some extra functions are added to the EVK. Two-way PCB headers are optional to use. Table 4 describes the two-
way PCB headers. To use any of the functions described in Table 4, a jumper should be used to ensure the extra
function is enabled. Note: A jumper socket must not be fitted in H3, if H5 and H6 jumpers are being used.
HEADER
H5 AUTO Mode VDD
H6 AUTO Mode EN
H7
Table 5 includes information from all the test points (TP) that can be found in the PE25203 EVK. The aim of each TP
is to facilitate users' ability to capture the 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 EVK.

TEST POINT

MODE
FREQ
EXT VDD
GND1 – GND5
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Copyright ©2023 Murata Manufacturing Co., Ltd. and pSemi Corporation, a Murata Company. All rights reserved.
DOC-111189-2 (10/2023)
SIGNAL NAME
Connects U2 comparator to the PE25203 VDD pin.
Connects comparator output to the MODE pin.
LED enable
LED1 lights ON when PE25203 allows PGOOD to be pulled high and to
indicate the charge pump is ready to support the full load current
Table 4. Two-way PCB Header Information
EN
Status of the enable signal
Status of the mode signal
FF
Status of the charge pump clock mode (fixed freq or cycle skip).
PG
Status of the PGOOD signal
VDD
V generated by the IC. Typically, 3.6V will be generated on this pin.
DD
Allows to see the voltage set at this pin.
+SO
Positive TP to measure V
-SO
Negative TP to measure V
+SI
Positive TP to measure V
-SI
Negative TP to measure V
Positive TP to measure EXT VDD
GND
0V reference TP
0V reference TP
Table 5. Test Point Descriptions
FUNCTION
DESCRIPTION
OUT
OUT
IN
IN
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