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 &

(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

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

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.

J = Pb-free (RoHS 6/6 compliant)

Remote ON/OFF Logic

Blank = Positive

R = Negative

N

No

otte

es

s

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.

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.