UG:307
vicorpower.com
Applications Engineering: 800 927.9474
Page 9
Sockets Description
Each socket accepts 0.015 – 0.025 inch diameter leads for easy installation of solid wires and through-
hole components for use with external circuit and test equipment.
Reference
Designator
(Shown in
Assembly Drawing)
Functional Name
Description
TP101, TP103
Input
voltage (+VIN, -VIN)
Input voltage test points. +VIN location is after input filter
inductor. –VIN is connected to PGND.
TP105, TP103
Input Capacitor (C
IN
)
Sockets are used for easy installation of through-hole
100V rated aluminum-electrolytic capacitor. Ensure proper
polarity with short leads while installing.
TP112
Power Ground (PGND)
This test point is in close proximity of the voltage switching
node (VS1) test point. To be used when probing VS1 to
minimizing ground loop.
TP104, TP102
Input
voltage (+VOUT, -VOUT)
Output voltage test points. –VOUT is connected to PGND.
TP201, TP203
Local sense trim resistor
test points (R206)
Used for easy installation of a fixed through-hole resistor
across the Trim pot. Used only when Switch (S202) is in
local sense position and switch (S201) is in Adj position.
TP215, TP216
Remote sense trim
resistor test points (R221)
Used for easy installation of a fixed through-hole resistor
across the Trim pot. Used only when Switch (S202) is in
remote sense position and switch (S203) is in Adj position.
TP110
VDR
A 5.1V auxiliary supply with max loading of 2mA. If used
this pin must have a series resistance such as R103 = 1k
Ω
with a decoupling cap of 0.1µF such as C124.
TP111
PWRGD
Power good indicator. During a regulator fault this pin is
pulled internally to signal ground.
TP107
EN
Input to the regulator. If left floating or driven high
(V
EN_MAX
= 5.5V) regulator will be enabled.
TP109
SGND
Internal logic ground.
TP108
TRK
Soft-start and track input. An external capacitor may be
connected between TRK pin and SGND to increase the rise
time of the internal reference during soft-start.
TP207
COMP
Compensation pin. An internal 5k
Ω
is in series between this
pin and the EAO pin. A default C201 = 4.7nF is used.
TP209
EAO
Error Amp output. External connection for additional
compensation and current sharing.
TP208
EAIN_R
Error Amp Inverting Input separated with R222 = 10k
Ω
.
TP210
VSP
Non-inverting input to an independent differential amplifier.
TP211, TP212
Remote Sense
input (+VRS, -VRS)
Non-isolated remote sense input. When selecting remote
sense feedback connect to the regulation point at the load.
Table 2
Sockets Descriptions
