For the most current data and application support visit www.artesyn.com/powergroup/products.htm
DC-DC CONVERTERS High Current, High Efficiency, Low Profile 2
NEW Product
File Name: quarter_brick_single.pdf Rev (07): 17 Nov 2005
Quarter-Brick Series
Single output
OUTPUT
INPUT INPUT OUTPUT
EFFICIENCY
REGULATION
MODEL
VOLTAGE
CURRENT RIPPLE CURRENT
(TYP.)
SET POINT
LINE LOAD
RIPPLE &
NUMBER
(6,9,10)
(MAX.)
(4)
CURRENT
(5)
(MAX.) ACCURACY NOISE
(Max.) (pk - pk)
48 Vin VALUE MODELS
1.2 V 1.92 A 150 mA 50 A 88.5% ±1.5% ±0.1% ±0.2% 60 mV LQS50A48-1V2J
1.5 V 2.36 A 150 mA 50 A 89.5% ±1.5% ±0.1% ±0.2% 60 mV LQS50A48-1V5J
1.8 V 2.82 A 150 mA 50 A 90.4% ±1.5% ±0.1% ±0.2% 60 mV LQS50A48-1V8J
48 Vin PERFORMANCE MODELS
1.2 V 4.05 A 250 mA 100 A 86.0% ±1.5% ±0.1% ±0.2% 60 mV
LQS100A48-1V2J
1.5 V 3.8 A 200 mA 80 A 88.8% ±1.5% ±0.1% ±0.2% 60 mV LQS80A48-1V5J
1.8 V 4.6 A 200 mA 80 A 90.0% ±1.5% ±0.1% ±0.2% 60 mV LQS80A48-1V8J
2.5 V 4.1 A 200 mA 50 A 90.0% ±1.5% ±0.1% ±0.2% 60 mV LQS50A48-2V5J
3.3 V 5.2 A 200 mA 50 A 91.0% ±1.5% ±0.1% ±0.2% 60 mV LQS50A48-3V3J
48 Vin ULTRA MODELS
1.5 V 4.8 A 200 mA 100 A 88.5% ±1.5% ±0.1% ±0.2% 60 mV
LQS100A48-1V5J
1.8 V 5.7 A 200 mA 100 A 89.5% ±1.5% ±0.1% ±0.2% 60 mV
LQS100A48-1V8J
2.5 V 6.2 A 200 mA 80 A 91.0% ±1.5% ±0.1% ±0.2% 60 mV LQS80A48-2V5J
3.3 V 6.2 A 200 mA 60 A 91.0% ±1.5% ±0.1% ±0.2% 60 mV LQS60A48-3V3J
5 V 6.2 A 200 mA 40 A 92.0% ±1.5% ±0.1% ±0.2% 60 mV
LQS40A48-5V0J
(7)
24 Vin MODELS
1.8 V 3.4 A 200 mA 30 A 91.0% ±1.5% ±0.1% ±0.2% 60 mV LQS30A24-1V8J
3.3 V 6.5 A 300 mA 30 A 89.5% ±1.5% ±0.1% ±0.2% 60 mV LQS30A24-3V3J
LQS60A48-3V3RANJ
Part Number System with Options
L = Low Profile
Q = 1/4 Brick
Type of output
S = Single
Rated Output Current
40 A = 40 Amps, 60 A = 60 Amps etc.
Nominal Rated Input Voltage
24 = 24 Volts (18 Vdc to 36 Vdc range)
48 = 48 Volts (36 Vdc to 75 Vdc range)
Body Height, Package Type and Pin Length
A = 0.300” (7.62 mm), Through Hole,
0.188” (4.78 mm) Pins
E = 0.340” (8.64 mm), Through Hole,
0.188” (4.78 mm) Pins
S = 0.28” (7.11 mm), Surface Mount
(6)
Pin Length Options
Blank = 0.188” (4.78 mm)
N = 0.145” (3.68 mm)
K = 0.110” (2.79 mm)
Output Voltage
1V5 = 1.5 Volts, 1V8 = 1.8 Volts etc.
RoHS Compliance
(9)
J = Pb-free (RoHS 6/6 compliant)
Remote ON/OFF Logic
Blank = Positive
R = Negative
NNootteess
1 di/dt = 1 A/µs, Vin = 48 Vdc, Tc = 25 °C, load change = 50% to 75% lo
max. and 75% to 50% lo max. Deviation varies by model. For further
details see longform datasheet.
2 Start-up into resistive load.
3 This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
4 Recommended input fusing is up to 10 A HRC 200 V rated fuse.
5 Peak to peak measured without external π filter. Significant reduction
possible with external filter. See Application Note 141 for further details.
6 ‘S’ option applies to the 24 V models only.
7 Except LQS40A48-5V0J which has the double output pins.
8 Active low Remote ON/OFF is available. Standard product is Active
High. When ordering active low parts, designate with the Suffix ‘R’ e.g.
LQS100A48-1V8RAJ.
9 TSE RoHS 5/6 (non Pb-free) compliant versions may be available on
special request, please contact your local sales representative for details.
10 NOTICE: Some models do not support all options. Please contact your
local Artesyn representative or use the on-line model number search tool
at http://www.artesyn.com/powergroup/products.htm to find a suitable
alternative.