MP028T036M12AL【PDF 1/14 页】MIL-COTS PRM REGULATOR

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Sheet目录869

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PRM ? Regulator 28 Vdc Input

MIL-COTS

MP028F036M12AL

NRTL

Non-isolated Regulator

Features

? V IN range 16 – 50 Vdc

? High density – 407 W/in 3

? Small footprint – 108 W/in 2

? Low weight – 0.5 oz (15 g)

? Surface-mount or

Through-hole package

Product Description

? Adaptive Loop feedback

? ZVS buck-boost regulator

? 1.3 MHz switching frequency

? 95% efficiency

? -55 °C to 125 °C operation (T J )

Absolute Maximum Ratings

V IN = 16 – 50 V

V OUT = 26 – 50 V

P OUT = 120 W

I OUT = 3.3 A

The PRM ? regulator is a very efficient non-isolated

regulator capable of both boosting and bucking a wide

range input voltage. It is specifically designed to provide

a controlled Factorized Bus distribution voltage for

powering downstream VTM ? current multiplier — fast,

efficient, isolated, low noise Point-of-Load (POL)

converters. In combination, PRM modules and VTM

modules 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 product of the

Factorized Bus voltage delivered by the PRM module

and the "K-factor" (the fixed voltage transformation

ratio) of a downstream VTM module. The PRM

regulator controls the Factorized Bus voltage to provide

regulation at the POL. Because VTM modules perform

true voltage division and current multiplication, the

Factorized Bus voltage may be set to a value that is

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

100

3.3

120

225

245

-55 to 125

-65 to 125

Unit

Vdc

Adc

°C

Notes

MSL 5

MSL 6

substantially higher than the bus voltages typically

found in "intermediate bus" systems, reducing

distribution losses and enabling use of narrower

distribution bus traces. A Military PRM module-VTM

DC-DC Converter

VTM ?

Module

module chip set can provide up to 100 A or 115 W at a

FPA system density of 169 A/in 3 or 195 W/in 3 — and

because the PRM module can be located, or

"factorized," remotely from the POL, these power

densities can effectively be doubled.

The Military PRM module described in this data sheet

V IN

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

–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

10 Ω

+In

– In

+Out

– Out

features a unique "Adaptive Loop" compensation

feedback: a single wire alternative to traditional remote

sensing and feedback loops that enables precise control

of an isolated POL voltage without the need for either a

direct connection to the load or for noise sensitive,

bandwidth limiting, isolation devices in the feedback

path.

The MP028F036M12AL is used with any 036 input series VTM ? module to provide a

regulated and isolated output.

PRM ? Regulator 28 Vdc Input

Page 1 of 14

Rev 3.5

1/2013

vicorpower.com

800 735.6200

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