QLS30ZB Datasheet, PDF (1/8 Pages) Power-One – QLS30 Series . 30A Quarter-Brick DC/DC Converter 48V Input 1.8V, 1.5V, 1.2V Output

QLS30 Series – 30A Quarter-Brick DC/DC Converter
48V Input
1.8V, 1.5V, 1.2V Output
Data Sheet
Features
Applications
• Distributed power architectures
• Telecommunications equipment
• LAN/WAN applications
• Data processing applications
• Cost-effective single board design
• Low profile – 11 mm height
• Input/output isolation: 1500VDC, basic
insulation
• High efficiency
• Output back-drive protection
• Start-up into high capacitive load
• Low conducted and radiated EMI
• Output overcurrent protection
• Output overvoltage 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 new QLS30 series of single-output DC/DC converters features single board, multi-layer construction
and an SMT design that is highly reliable due to the low component count and minimal manufacturing touch
time. The QLS30 series uses fewer components than any other equivalently rated single board converter.
The converters can deliver a maximum of 30 Amps with a typical efficiency of 85%. The QLS provides
superior thermal performance, with minimal derating. The QLS30ZB model converter can deliver 22.8
amperes at 1.8 volt output in ambient conditions of 65°C and 200 LFM. This full featured, low profile
converter offers input undervoltage lockout, overload, overvoltage and overtemperature protection. Interface
features include remote on/off, remote sense and output voltage trim.
Selection Chart
Model
Input
Input
Output Output rated
Output
Typical
voltage current,
voltage
current
Ripple/Noise, Efficiency
VDC
max
ADC
Vout,
VDC
I _rated,
ADC
mV p-p
@ I _rated, %
QLS30ZB
36-75
1.5
1.8
30
100
86
QLS30ZA
36-75
1.3
1.5
30
100
85
QLS30ZY
36-75
1.1
1.2
30
100
84
This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment
should be followed.
REV. 10/1
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