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P024F048T12AL
PRM TM
Regulator
? 24 V input V?I Chip TM PRM
? Adaptive Loop feedback
? Vin range 18 – 36 Vdc
? High density – 407 W/in 3
? ZVS buck-boost regulator
? 1.33 MHz switching frequency
Vin = 18 – 36 V
?
? Small footprint – 103
W/in 2
? 95% efficiency
V f = 26 – 55 V
? Low weight – 0.5 oz (15 g)
? 125?C operation (Tj)
P f = 120 W
I f = 2.5 A
Product Description
Absolute Maximum Ratings
The V ? I Chip regulator is a very efficient non-isolated
regulator capable of both boosting and bucking a wide
range input voltage. It is specifically designed to pr ovide
a controlled Factorized Bus distribution voltage for
powering downstream VTM TM Transformer — fast,
efficient, isolated low noise Point-of-Load (POL)
converters. In combination, PRMs and VTMs TM form a
complete DC-DC converter subsystem offering all of the
unique benefits of Vicor’s Factorized Power
Architecture TM (FPA) TM : high density and efficiency; low
noise operation; architectural flexibility; extremely fast
transient response; and elimination of bulk capacitance
at the Point-of-Load (POL).
In FPA systems, the POL voltage is the pr oduct of the
Factorized Bus voltage delivered by a PRM and the
"K-factor" (the fixed voltage transformation ratio) of a
downstream VTM. The PRM controls the Factorized Bus
voltage to provide regulation at the POL. Because VTMs
perform true voltage division and current multiplication,
the Factorized Bus voltage may be set to a value that is
substantially higher than the bus voltages typically
Parameter
+In to -In
PC to -In
PR to -In
IL to -In
VC to -In
+Out to -Out
SC to -Out
VH to -Out
OS to -Out
CD to -Out
SG to -Out
Continuous output current
Continuous output power
Case temperature during reflow
Operating junction temperature
Storage temperature
Values
-1.0 to 60.0
-0.3 to 6.0
-0.3 to 9.0
-0.3 to 6.0
-0.3 to 18.0
-0.3 to 59
-0.3 to 3.0
-0.3 to 9.5
-0.3 to 9.0
-0.3 to 9.0
100
2.5
120
225
245
-40 to 125
-40 to 125
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mA
Adc
W
°C
°C
°C
°C
Notes
MSL 5
MSL 6
T-Grade
T-Grade
found in "intermediate bus" systems, reducing
distribution losses and enabling use of narr ower
distribution bus traces. A PRM-VTM chip set can pr ovide
up to 100 A, or 115 W, at a FPA system density of
DC-DC Converter
169 A/in 3 , or 195 W/in 3 — and because the PRM can
be located, or "factorized," remotely from the POL,
these power densities can effectively be doubled.
The PRM described in this data sheet featur es a unique
0.01 μF
10 k Ω
V C
P C
T M
I L
N C
P R
PRM? -AL
Module
+I n +O u t
V H
S C
S G
O S
N C
C D
R OS
R CD
Factorized
Bus (V F )
0.4 μH
+In
TM
VC
PC
+Out
+Out
VTM?
Module
– Out
L
O
A
"Adaptive Loop" compensation feedback: a single wir e
alternative to traditional remote sensing and feedback
V IN
–I n
–O u t
10 Ω
– In
K
Ro
– Out
D
loops that enables precise control of an isolated POL
voltage without the need for either a dir ect connection
to the load or for noise sensitive, bandwidth limiting,
isolation devices in the feedback path.
The P024F048T12AL is used with any 048 input series VTM to provide a regulated and
isolated output.
vicorpower.com
800-735-6200
V?I Chip Regulator
P024F048T12AL
Rev. 3.1
Page 1 of 14
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