Datasheet > PRM48AF480M400A00

PRM48AF480M400A00

更新时间： 2024-10-14 12:00:03

品牌	Logo	应用领域
VICOR		稳压器
页数	文件大小	规格书
45页	1474K
描述
PRMâ¢ Regulator

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PRM48A x 480 y 400A00

PRM™ Regulator

FEATURES



48V input (36V to 75V), non‐isolated ZVS buck‐boost regulator

20V to 55V adjustable output range

400W output power in 1.1in²footprint

97.5% typical efficiency, at full load

1355 W/in³(83 W/cm³) Power Density

4.01 MHrs MTBF (MIL‐HDBK‐217Plus Parts Count)

Pin selectable operating mode



Adaptive Loop

Remote Sense / Slave



Full VIChip Package

32.5mm x 22.0mm x 6.73mm



TYPICAL APPLICATIONS

PRODUCT RATINGS



High Density Power Supply DC-DC rail outputs

High Density ATE system DC-DC power

Telecom NPU and ASIC core power

Communications Systems

V_IN= 36V to 75V

P_OUT= 400W

I_OUT= 8.33A

V_OUT= 48V

(20V to 55V Trim)

Non-isolated and isolated power converters

DESCRIPTION

The VIChip™ PRM™ Regulator is a high efficiency converter, operating from a 36 to 75 Vdc input to generate a regulated

20 to 55 Vdc output. The ZVS buck – boost topology enables high switching frequency (~1.03 MHz) operation with high

conversion efficiency. High switching frequency reduces the size of reactive components enabling power density up to

1355 W/in³.

The Full VIChip package is compatible with standard pick-and-place and surface mount assembly processes with a planar

thermal interface area and superior thermal conductivity.

In a Factorized Power Architecture™ system, the PRM and downstream VTM™ current multiplier minimize distribution and

conversion losses in a high power solution, providing an isolated, regulated output voltage.

The PRM48A[x]480[y]400A00 has two selectable modes of regulation depending on the application requirements.

In Adaptive Loop operation, the PRM48A[x]480[y]400A00 utilizes a unique feed-forward scheme that enables precise

regulation of an isolated POL voltage without the need for remote sensing and voltage feedback.

In Remote Sense operation, the internal regulation circuitry is disabled, and an external control loop and current sensor

maintain regulation. This affords flexibility in the design of both voltage and current compensation loops to optimize

performance in the end application.

Rev. 1.0

11/2012

- 1 -

12 3 4 5 6 7...45

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