JUN 01, 2003 revised to NOV 22, 2006

Page 1 of 14

www.power-one.com

Q24S15050 DC-DC Converter Data Sheet

18-36 VDC Input; 5 VDC @ 15A Output

The Q24S15050 surface mounted DC-DC converter offers

unprecedented performance in the industry-standard quarter

brick format. This is accomplished through the use of patent

pending circuit and packaging techniques to achieve ultra-

high efficiency, excellent thermal performance and a very

low body profile.

In telecommunications applications the

Q&

verters provide thermal performance comparable with exist-

ing 20 A designs. Low body profile and the preclusion of

heat sinks minimize airflow shadowing, thus enhancing cool-

ing for downstream devices. The use of 100% surface-mount

technologies for assembly, coupled with Power-One’s ad-

vanced electric and thermal circuitry and packaging, results

in a product with extremely high quality and reliability.

Ambient Temperature [°C]

20

30

40

50

60

70

80

90

0

5

10

15

20

500 LFM (2.5 m/s)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

30 LFM (0.15 m/s)

Fig. 1: Available load current vs. ambient air temperature and air-

flow rates for Q24S15050 converter mounted vertically with air flow-

ing from pin 3 to pin 1, MOSFET temperature

≤ 120°C, Vin = 27 V.

Applications

•

Telecommunications

•

Data communications

•

Wireless

•

Servers

Q24S15050 Converter

Features

•

RoHS lead-free solder and lead-solder-exempted

products are available

•

Delivers up to 15 A

•

High efficiency: 88.5% @ 15 A, 88.5% @ 7.5 A

•

Start-up into pre-biased output

•

No minimum load required

•

No heat sink required

•

Low profile: 0.26” [6.6 mm]

•

Low weight: 1 oz [28 g] typical

•

Industry-standard footprint: 1.45” x 2.30”

•

Meets Basic Insulation Requirements of EN60950

•

On-board LC input filter

•

Fixed-frequency operation

•

Fully protected

•

Remote output sense

•

Output voltage trim range: +10%/-20%

•

Trim resistor via industry-standard equations

•

High reliability: MTBF 2.6 million hours, calculated per

Telcordia TR-332, Method I Case 1

•

Positive or negative logic ON/OFF option

•

UL 60950 recognized in U.S. & Canada, and DEMKO

certified per IEC/EN 60950

•

Meets conducted emissions requirements of FCC

Class B and EN55022 Class B with external filter

•

All materials meet UL94, V-0 flammability rating