Technical

Specification

PQ60018EKx25

Product # PQ60018EKx25

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0005113 Rev. B

06/12/09

Page 1

The PQ60018EKx25 PowerQor

is a next-generation, board-mountable, isolated,

fixed switching frequency DC/DC converter that uses

synchronous rectification to achieve extremely high

conversion efficiency. The power dissipated by the

converter is so low that a heatsink is not required,

which saves cost, weight, height, and application

effort. All of the power and control components are

mounted to the multi-layer PCB substrate with high-

yield surface mount technology. Since the PowerQor

converter has no explicit thermal interfaces, it is

extremely reliable. RoHS compliant (see page 15).

48V

1.8V

25A

2000V dc

Eighth-brick

Input

Output

Current

Isolation

DC-DC Converter

Mechanical Features

Operational Features

Protection Features

Control Features

Safety Features

CONTENTS

Page No.

Mechanical Drawing - Open frame - EKA & EKL (low Profile) . . . . . . . . 2

Mechanical Drawing - Encased . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

PQ60018EKx25 (1.8 V, 25 A) Electrical Characteristics . . . . . . . . . . . . 4-5

PQ60018EKx25 Standards & Qualification Testing . . . . . . . . . . . . . . . . 6

PQ60018EKx Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-14

Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

PQ60018EKA25

Module

• High efficiency, 84% at full load

• Delivers up to 25A of output current with minimal derating -

no heatsink required

• Wide input voltage range: 35V–75V, with 100V, 100ms input

voltage transient capability

• Fixed frequency switching provides predictable EMI performance

• No minimum load requirement means no preload resistors required

• Industry standard eighth-brick pin-out configuration

• Industry standard size: 0.90”x2.3” (22.9x58.4mm)

• Total height only 0.340” (8.64mm), permits better airflow and

smaller card pitch

• Total weight: 0.85oz. (24 grams)

• Flanged pins designed to permit surface mount soldering

(avoid wave solder) using FPiP technique

• On/Off control referenced to input side (positive and negative logic

options are available)

• Remote sense for the output voltage compensates for output

distribution drops

• Output voltage trim permits custom voltages and voltage margining

• Input under-voltage lockout disables converter at low input

voltage conditions

• Output current limit and short circuit protection protects converter

and load from permanent damage and consequent

hazardous conditions

• Active back bias limit prevents damage to converter

from external load induced pre-bias

• Output over-voltage protection protects load from

damaging voltages

• Thermal shutdown protects converter from abnormal

environmental conditions

• 2000V, 30MΩ input-to-output isolation provides input/output

ground separation

• UL 60950-1 recognized (US & Canada),basic insulation rating

• TUV certified to EN60950-1

• Board and plastic components meet UL94V-0 flammability requirements