Technical
S pecification
PQ24033QGA25
18-36V
Input
3.3V
Output
25Amp
Current
2000Vdc
Isolation
Quar ter-brick
DC/DC Conver ter
Th e P Q24 033Q GA2 5 Pow erQ or
®
Gi ga q uar ter- bri ck con -
v er t er is a n ext -ge ner a ti on , b oa r d- mo un t ab l e, iso la t ed , fixed
s witch ing freq u enc y DC/DC c on ver ter tha t u ses s y nch r o -
n ou s r ect ifi ca ti on t o a ch iev e ext r emel y h igh co nv er s ion effi -
c ienc y. Th e po wer d iss ip at ed by th e con v er te r is s o lo w
th at a h ea tsin k i s no t r eq ui red , wh ich s a ves cos t, weigh t,
h eigh t , an d ap p lic at io n ef for t . Al l o f th e p owe r a nd co nt r ol
c omp on ent s ar e mou nt ed to t h e mul t i-l a yer PC B s ub s tr a t e
with h igh -y iel d su r fac e mo un t tec hn ol ogy . Si nce th e
P owe rQ or co nver ter ha s n o ex pl icit th er mal in terf ac es, it is
extremely reliable. RoHS Compliant (see page 12 ).
Operational Features
• Ultra-high efficiency, 87% at full rated load current
• Delivers up to 25 amps of output current with minimal
derating - no heatsink required
• Wide input voltage range: 18V – 36V meets or
exceeds all 24V bus standards
• Fixed frequency switching provides predictable EMI per-
formance
• No minimum load requirement means no preload resis-
tors required
PQ24033QGA25 Module
Pr otection Features
• 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 conse-
quent hazardous conditions
• Active back bias limit prevents damage to converter
from external load induced pre-bias
• Output over-voltage protection protects load from dam-
aging voltages
• Thermal shutdown protects converter from abnormal
environmental conditions
Mechanical Features
• Industry standard quarter-brick pin-out configuration
• Industry standard size: 1.45” x 2.3” (36.8x58.4mm)
• Total height less than 0.40” (10.2mm), permits better
airflow and smaller card pitch.
• Total weight: 1.2 oz. (34 grams)
• Flanged pins designed to permit surface mount solder-
ing (can avoid wave solder) using FPiP technique
Safety Features
• 2000V, 30 MΩ input-to-output isolation provides
input/output ground separation
• UL/cUL 60950-1 recognized (US & Canada), basic
insulation rating
• TUV certified to EN60950-1
• Meets 72/23/EEC and 93/68/EEC directives which
facilitates CE Marking in user’s end product
• Board and plastic components meet UL94V-0 flamma-
bility requirements
• NEBS and ETSI compliant
Contr ol Features
• 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 volt-
age margining
Product # PQ24033QGA25
Phone 1-888-567-9596
Doc.# 005-2QG233D Rev. B
08/17/06
Page 1
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