Description
With power densities up to 25 watts per cubic inch (1.53 watts per
cm 3 ), the DSN17 Series delivers 3.5 amperes of current at either
5 or 3.3 volts. Designed for digital and microprocessor applications,
the non-isolated flat package requires only 1 square inch (6.45 cm 2 )
of PCB area. Remote On/Off gives additional system flexibility. The
100 kHz operating frequency of the DSN17 Series allows an
increased power density while including adequate heat sinking and
input/output filtering. This eliminates the need for external
components in some applications. The Series’ input range and no
load input current (5 mA) makes it well suited for battery operation in
commercial and industrial applications. Full overload protection is
provided by pulse-by-pulse current limiting.
JAN 27, 2006 revised to JUN 12, 2006
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Model numbers highlighted in yellow or shaded are not recommended for
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Page 1 of 3
(19.05)
0.75
NOTES
(1)
(2)
(3)
Features
• RoHS lead solder exemption compliant
• Up to 17 watts output power
• Single in line package
• Power density up to 25 watts per cubic inch
• Efficiencies to 88% (lower for 3.3 V output)
• High efficiency step-down regulator
• Remote On/Off
Mechanical tolerances unless
otherwise noted:
X.XX dimensions: ±0.020 inches
X.XXX dimensions: ±0.005 inches
P
All parameters measured at Tc = 25 °C, nominal input voltage and full rated load unless otherwise
noted.
The functional temperature range is intended to give an additional data point for use in evaluating this
power supply. At the low functional temperature the power supply will function with no side effects,
however, sustained operation at the high functional temperature will reduce expected operational life.
The data sheet specifications are not guaranteed beyond the case operating range.
The case thermal impedance is specified as the case temperature rise over ambient per package watt
dissipated.
1
2
3
4
5
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FRONT VIEW
U
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(50.80)
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0.025 (0.64) SQ PIN
9 PLACES
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6 7 8 9
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www.power-one.com
+
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RIGHT VIEW
u
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(5.08)
TYP