MCD10193 Rev. 1.0, 21-Jun-10
Page 1 of 25
www.power-one.com
YNS05S10 DC-DC Converter Data Sheet
3.0-5.5 VDC Input; 0.7525-3.63 VDC Programmable @ 10 A
The YNS05S10 converter is not
recommended
for
new
designs
and has been replaced by the
YS05S10.
Please
refer
to
the
YS05S10
data
sheet
for
new
product specifications.
Applications
Intermediate Bus Architectures
Telecommunications
Data communications
Distributed Power Architectures
Servers, workstations
Benefits
High efficiency – no heat sink required
Reduces total solution board area
Tape and reel packing
Compatible with pick & place equipment
Minimizes part numbers in inventory
The
Products: Y-Series
Features
RoHS lead free and lead-solder-exempt products
are available
Delivers up to 10 A (36 W)
No derating up to 85 C
Surface-mount package
Industry-standard footprint and pinout
Small size and low-profile: 1.30” x 0.53” x 0.314”
(33.02 mm x 13.46 mm x 7.98 mm)
Weight: 0.22 oz [6.12 g]
Coplanarity less than 0.003”, maximum
Synchronous Buck Converter Topology
Start up into pre-biased output
No minimum load required
Programmable output voltage via external resistor
Operating ambient temperature: -40 °C to 85 °C
Remote output sense
Remote ON/OFF (positive or negative)
Fixed-frequency operation
Auto-reset output overcurrent protection
Auto-reset overtemperature protection
High reliability, MTBF = 32.54 million hours
calculated per Telcordia TR-332, Method I Case 1
All materials meet UL94, V-0 flammability rating
UL60950 recognition in U.S. & Canada, and
DEMKO certification per IEC/EN60950
Description
Power-One’s point-of-load converters are recommended for use with regulated bus converters in an Intermediate
Bus Architecture (IBA). The Y-Series of non-isolated dc-dc converters deliver up to 10 A of output current in an
industry-standard surface-mount package. Operating from a 3.0 to 5.5 VDC input, the YNS05S10 converters are
ideal choices for Intermediate Bus Architectures where Point-of-Load (POL) power delivery is generally a
requirement. The converters provide an extremely tight regulated programmable output voltage from 0.7525 to
3.63 VDC.
The Y-Series of converters provide exceptional thermal performance, even in high temperature environments with
minimal airflow. No derating is required up to 85
C, even without airflow at natural convection. This performance
is accomplished through the use of advanced circuitry, packaging, and processing techniques to achieve a design
possessing ultra-high efficiency, excellent thermal management, and a very low-body profile.
The low-body profile and the preclusion of heat sinks minimize impedance to system airflow, thus enhancing
cooling for both upstream and downstream devices. The use of 100% automation for assembly, coupled with
advanced power electronics and thermal design, results in a product with extremely high reliability.