BTCPower
SQO/SQ Series
Description
TM
Broadband TelCom Power,
Inc.
Redefining “Current” Limits In Power Conversion
25A High Efficiency Quarter Bricks
The SQO/SQ series of high power density, high efficiency
DC/DC converters deliver up to 25A in an industry standard
quarter-bricks footprint. With a wide input voltage range of
36-75V they are available with an output voltage of either
1.5, 1.8, 2.5, 3.3 or 5 Volts. All models feature an input filter,
input undervoltage lockout, output overvoltage and
overtemperature protection, output current limiting and short
circuit protection. These converters are available either in a
package that is open-frame / enclosure construction. The
aluminum heat spreader design achieves very efficient heat
transfer with no hot spots. The use of highly derated power
devices help to achieve high reliability, high performance
and offer a low cost solution to systems designers that are
challenged to maximize power and minimize board space.
Features
•
Delivers up to 25A in Quarter Brick
• Low profile of only 0.35 inch
• 1.5V, 1.8V, 2.5V, 3.3V or 5V output modules
• -40°C to +85 °C ambient operation
• Meets Basic Insulation requirements of EN60950
• UL 60950 recognized and TUV EN60950
• Meets conducted limits of FCC Class B and CEI
IEC61204-3 Class B with external filter
Specification Summary
•
25A @ 5V, 25A @ 3.3V, 25A @ 2.5V, 25A @ 1.8V, 25A @ 1.5V
• Tightly output regulation, typical ±1%
• No minimum load required
• Ripple & Noise ( 20Mhz BW) 100 mv (pk-pk)
• Wide input operating range 36-75V
• On/Off pin and remote sense
• Output adjustment +/-10% range
Applications
•
•
•
•
•
•
Telecommunications
Data Communications
Wireless Communications
Networking Gear
Servers, Switches and Data Storage
Semiconductor Test Equipment
• 1500V, 10M
input-to-output isolation
• Enclosed construction with heat spreader for low
temperature rise
• Output overcurrent and overvoltage protection
• Over Temperature protection
• Input Under voltage protection
• MTBF of 1,500,000 hours @ 50°C ( Bellcore )
• Dis tributed Power Architecture
Broadband TelCom Power, Inc. –
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com PB SQO/SQ Rev3 16-1-04
SQO/SQ Series
25A Single Output High Efficiency Quarter Bricks
BTCPower
TM
Product Brief
Part Number and Selection Information
Model
Part Number
Positive Logic
SQO100-24-5
SQO100-24-3.3
SQO100-24-2.5
SQO100-24-1.8
SQO100-24-1.5
SQO100-48-5
SQO100-48-3.3
SQO100-48-2.5
SQO100-48-1.8
SQO100-48-1.5
Negative Logic
SQO100-24-5N
SQO100-24-3.3N
SQO100-24-2.5N
SQO100-24-1.8N
SQO100-24-1.5N
SQO100-48-5N
SQO100-48-3.3N
SQO100-48-2.5N
SQO100-48-1.8N
SQO100-48-1.5N
Voltage (Volts)
Nominal
24
24
24
24
24
48
48
48
48
48
Range
18-36
18-36
18-36
18-36
18-36
36-75
36-75
36-75
36-75
36-75
Input
Current (A)
No load
0.04
0.04
0.04
0.05
0.05
0.04
0.04
0.04
0.05
0.05
Full load
5.8
3.8
3.0
2.2
1.8
2.9
1.9
1.5
1.1
0.9
Output
Voltage
(Volts)
5.0
3.3
2.5
1.8
1.5
5.0
3.3
2.5
1.8
1.5
Current
(Amps)
25
25
25
25
25
25
25
25
25
25
Efficiency
75% Load
(%)
90
90
89
87
87
90
90
89
87
87
Typical at Ta= +25 ºC under nominal line voltage and 75% load conditions, unless noted.
For encapsulated (epoxy enclosed) models, replace “SQO” in part no. with “SQ”.
Consult factory for other output voltage configurations and optional accessories such as heatsinks and filters.
Outline Information and Pin-out
Pin Connection
Pin#
Function
1
2
3
4
5
6
7
8
Vin -
On/Off
Vin +
Vout +
Sense +
Trim
Sense -
Vout -
All dimensions are in inches [mm]
Pin 4 and 8 are dia. 0.062 [1.57]
All other pins are all dia. 0.040 [1.02]
Pin material: Brass
Pin finish: Tin/Lead plated
Heat spreader (baseplate) material:
Aluminum
Weight: 50.7g (1.8oz)
The information and specifications contained in this brief are believed to be accurate and reliable at the time of publication. Specifications are
subject to change without notice. Refer to product specification sheet for performance characteristics and application guidelines
.
Broadband TelCom Power, Inc. –
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com PB SQO/SQ Rev3 16-1-04
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