Quarter-Brick Series
D u a l o u t p u t
DC/DC CONVERTERS
High Current, High Efficiency, Low Profile
2
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NEW Product
OUTPUT VOLTAGE
OUTPUT
OVP
EFFICIENCY
(TYP.)
NOMINAL
INITIAL SET POINT (3)
REGULATION BAND
CURRENT
TRIP POINT
MODEL NUMBER (4,5)
1
2
1
2
1
2
1
2
1
2
QUARTER-BRICK DUAL OUTPUT PERFORMANCE MODELS
1.2 V 3.3 V 1.18-1.22 V 3.25-3.35 V 1.16-1.24 V
1.5 V 3.3 V 1.48-1.55 V 3.25-3.35 V 1.44-1.55 V
1.8 V 3.3 V 1.77-1.83 V 3.25-3.35 V 1.75-1.85 V
2.5 V 3.3 V 2.46-2.54 V 3.25-3.35 V 2.42-2.58 V
3.2-3.4 V
3.2-3.4 V
3.2-3.4 V
3.2-3.4 V
20 A 20 A 1.5 V
20 A 20 A 1.8 V
4 V
4 V
4 V
4 V
90.0%
90.5%
90.5%
90.5%
LQD40A48-3V3-1V2J
LQD40A48-3V3-1V5J
LQD40A48-3V3-1V8J
LQD40A48-3V3-2V5J
20 A 20 A
20 A 20 A
2 V
3 V
QUARTER-BRICK DUAL OUTPUT VALUE MODELS
1.2 V 3.3 V 1.18-1.22 V 3.25-3.35 V 1.16-1.24 V
1.5 V 3.3 V 1.48-1.52 V 3.25-3.35 V 1.44-1.55 V
1.8 V 3.3 V 1.77-1.83 V 3.25-3.35 V 1.75-1.85 V
2.5 V 3.3 V 2.46-2.54 V 3.25-3.35 V 2.42-2.58 V
3.2-3.4 V
3.2-3.4 V
3.2-3.4 V
3.2-3.4 V
15 A 15 A 1.5 V
15 A 15 A 1.8 V
4 V
4 V
4 V
4 V
6 V
90.0%
90.5%
90.5%
91.0%
91.0%
LQD30A48-3V3-1V2J
LQD30A48-3V3-1V5J
LQD30A48-3V3-1V8J
LQD30A48-3V3-2V5J
LQD25A48-5V0-3V3J
15 A 15 A
15 A 15 A
2 V
3 V
4 V
3.3 V 5 V 3.25-3.35 V 4.92-5.08 V 3.20-3.40 V 4.85-5.15 V 15 A 10 A
Part Number System with Options
LQD40A48-3V3-1V8RANJ(5)
RoHS Compliance (4)
J = Pb-free (RoHS 6/6 compliant)
L = Low Profile
Q = 1/4 Brick
Pin Length Options
Blank = 0.188” (4.78 mm)
N = 0.145” (3.68 mm)
K = 0.110” (2.79 mm)
Number of Outputs
D = Dual
Body Height and Package Type
Rated Output Current
(Sum of all outputs)
40 A = 40 Amps
A = 0.300” (7.62 mm), Through-Hole,
E = 0.340” (8.64 mm), Through-Hole,
S = 0.285” (7.24 mm), Surface-Mount
Nominal Rated Input Voltage
48 = 48 Volts (36 V to 75 V Range)
Remote ON/OFF Logic
No Suffix = Positive
Suffix ‘R’ = Negative
Output Voltage of V2
3V3 = 3.3 Volts
Output Voltage of V1
1V8 = 1.8 Volts, 1V2 = 1.2 Volts etc.
Notes
1
2
User must provide recommended fuses in order to comply with safety
approvals. See Application Note 137.
Maximum continuous output power.
3
4
I
= Imax, I = Imax.
o1 o2
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for details.
The part number cannot exceed 18 characters. If the desired part
number with options contains 19 characters then the last dash ‘-’ in the
part number is removed i.e. LQD25A48-5V0-3V3RAJ becomes
LQD25A48-5V03V3RAJ. If the desired part number with options contains
20 characters then all dashes ‘-’ are removed, i.e. LQD25A48-5V0-
3V3RANJ becomes LQD25A485V03V3RANJ.
90 Watts for LQD40A48-3V3-1V2J models
96 Watts for LQD40A48-3V3-1V5J models
102 Watts for LQD40A48-3V3-1V8J models
116 Watts for LQD40A48-3V3-2V5J models
67.5 Watts for LQD30A48-3V3-1V2J models
72 Watts for LQD30A48-3V3-1V5J models
76.5 Watts for LQD30A48-3V3-1V8J models
87 Watts for LQD30A48-3V3-2V5J models
99.5 Watts for LQD25A48-5V0-3V3J models
5
File Name: quarter_brick_dual.pdf Rev (01): 29 Mar 2006
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