Datasheet

UG-443 ADP1851-EVALZ User Guide
Rev. 0 | Page 6 of 12
OTHER INFORMATION ABOUT THE EVALUATION BOARD PCB LAYOUT
As seen in Figure 1, the layout of this evaluation board is not
optimized for the smallest PCB area. It is laid out in such a way
that any of the components can be desoldered and replaced
easily with different components by using a hand soldering
iron so that the user can modify the existing design without
acquiring a new PCB layout. The physical size of the compensa-
tion components is 0603, which is selected for its ease of hand
soldering when reworking the board is needed. The size of these
components can be smaller in an actual design. The user can
also remove or change any of the power components, including
the output filter capacitors, high-side and low-side MOSFETs,
input capacitors, and inductor, to achieve a particular design
objective. If a tracking function is needed, the user can remove
Capacitor C6, place a resistor divider (R8/R9) to configure the
desired tracking function, and short the JP4 (TRK) with shunt.
To study the precision enable function, remove the shunt from
JP2 and apply an external voltage to TP2 EN. To program a higher
UVLO threshold, place the required resistor divider (R3/R5).
See Figure 8, the evaluation board schematic, for more
information.