QLS20ZG Datasheet, PDF (1/8 Pages) Power-One – Distributed power architectures

QLS25 DC-DC Series Data Sheet
25A Quarter-Brick
Features
Applications
• Distributed power architectures
• Telecommunications equipment
• LAN/WAN applications
• Data processing applications
• RoHS lead solder exemption compliant
• Cost-effective single board design
• Low profile – 11 mm height
• Input/output isolation: 1500VDC, basic
insulation
• High efficiency - up to 90% at full load
• Start-up into high capacitive load
• Low conducted and radiated EMI
• Output overcurrent protection
• Output overvoltage protection
• Back drive protection
• Overtemperature protection
• Remote sense
• Set point accuracy ± 1%
• Remote on/off (primary referenced), positive
or negative logic
• Output voltage trim adjust, positive or
negative
• UL 1950 Recognition, CSA 22.2 No. 950-95
certification, TUV IEC950
Description
The QLS25 is a new series of cost-effective, high-density single output DC-DC converters providing onboard
conversion of standard telecom and datacom input voltages into isolated low voltage outputs in a through-hole
mounting package. High efficiencies and a patent-pending board design significantly improve thermal
characteristics by evening out hot spots and enhance product reliability.
Model Selection
Model
Input
Voltage
VDC
Input
Current, Max
ADC
Output
Voltage
Vout,
VDC
Output Rated
Current
I _rated,
ADC
Output
Ripple/Noise,
mV p-p
Typical
Efficiency @
I _rated, %
QLS20ZG
36-75
4.8
5.0
20
150
90
QLS25ZE
36-75
3.3
3.3
25
100
89
QLS25ZD
36-75
2.5
2.5
25
100
87
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment
should be followed.
SEP 12, 2003 revised to OCT 26, 2006
Page 1 of 8
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