DSP1 Single-Output DC-DC Series Data Sheet
MCD10181 Rev. 1.0, 16-Jun-10 Page 1 of 3 www.power-one.com
Description
The DSP1 Series is specifically designed to convert a nominal 5 volt
input into an isolated output voltage. The semi-regulated output
voltages were designed to allow analog circuits and three terminal
regulators to operate within their most efficient input voltage range.
This series achieves high power densities through the use of
350 kHz fixed-frequency switching converters.
Features
• RoHS lead solder exemption compliant
• Up to 1 watt unregulated output power
• Single in line package
• Four-terminal operation
• Efficiencies to 75%
• 350 kHz fixed-frequency operation
• 700 V isolation
• -40 °C to +85 °C operation
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Mechanical tolerances unless otherwise noted:
X.XX dimensions: ±0.020 inches
X.XXX dimensions: ±0.010 inches
* This dimension to decrease to 0.24±0.01” (6.09±0.25) in 1998
** This dimension to decrease to 0.035±0.015” (0.89±0.38) in 1998
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NOTES
(1) All parameters measured at Tc = 25 °C, nominal input voltage and full rated load unless otherwise
noted.
(2) The case Thermal Impedance is specified as the case temperature rise over ambient per package
dissipated.
(3) Derate output power linearly to 0.6 watts from 70 °C to 85 °C.
+IN
-IN
-OUT
+OUT
FRONT VIEW
0.77
0.600
0.400
0.200
0.100
0.000
0.40
0.02
0.000
(2.54)
(5.08)
(10.16)
(15.24)
(19.56)
(0.51)
(10.16)
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DSP1N5S7
DSP1N5S12
DSP1N5S14
DSP1N5S15
DSP1N5S17
DSP1 Single-Output DC-DC Series Data Sheet
MCD10181 Rev. 1.0, 16-Jun-10 Page 2 of 3 www.power-one.com
NOTES
(1) All parameters measured at Tc= 25 °C, nominal input voltage and full rated load unless
otherwise noted.
(2) Noise measurement bandwidth is 20 MHz. Input Reflected Ripple and output noise are
measured with an external 10μF/25V tantalum capacitor connected across the input and output
pins.
(3) Output Voltage Accuracy measured at 75% of maximum Rated Load.
(4) Load Regulations measured relative to 75% of maximum Rated Load Current.
(5) Line Regulation is for a 1.0% change in input Voltage.
(6) Use input fuse for protection. See Applying the input.
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DSP1 Series Application Notes:
External Capacitance Requirements
Output filtering is required for operation. A minimum of 10 F
is specified for optimal performance. Output capacitance may
be increased for additional filtering, not to exceed 400 F. To
meet the reflected ripple requirements of the converter, an
input impedance of less than 0.5 Ohms from DC to 350 kHz
is required. If a capacitive input source is farther than 2” from
the converter, it is recommended to use a 10 F, 25 V solid
tantalum capacitor.
Regulation
This converter uses a semi-regulated design. The output will
vary as the load is changed, with output decreasing with
increasing load. See Output Voltage vs. Output Load curves.
Additionally, output voltage will change in proportion to a
change in input voltage. The typical output voltage will change
1.2% for each 1% change in input voltage.
Negative Outputs
A negative output voltage may be obtained by connecting the
+OUT to circuit ground and connecting -OUT as the negative
output.
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DSP1 Single-Output DC-DC Series Data Sheet
MCD10181 Rev. 1.0, 16-Jun-10 Page 3 of 3 www.power-one.com
Typical Performance: (Tc=25 C)
5.80
5.60
5.40
5.20
5.00
4.80
4.60 0 40 80 120 160
OUTPUT VOLTAGE Vs. OUTPUT LOAD
DSP1N5S5
OUTPUT LOAD (mA)
OUTPUT VOLTAGE (VOLTS)
13.50
13.00
12.50
12.00
11.50 0306090
OUTPUT VOLTAGE Vs. OUTPUT LOAD
DSP1N5S12
OUTPUT LOAD (mA)
OUTPUT VOLTAGE (VOLTS)
7.90
7.60
7.30
7.00
6.70
6.40 0 40 80 120 160
OUTPUT VOLTAGE Vs. OUTPUT LOAD
DSP1N5S7
OUTPUT LOAD (mA)
OUTPUT VOLTAGE (VOLTS)
15.40
15.00
14.20
14.60
13.80
13.40 020
40 60 80
OUTPUT VOLTAGE Vs. OUTPUT LOAD
DSP1N5S14
OUTPUT LOAD (mA)
OUTPUT VOLTAGE (VOLTS)
16.50
15.90
14.70
15.30
14.10 020
40 60 80
OUTPUT VOLTAGE Vs. OUTPUT LOAD
DSP1N5S15
OUTPUT LOAD (mA)
OUTPUT VOLTAGE (VOLTS)
18.50
18.00
17.00
16.50
17.50
16.00 020
40 60 80
OUTPUT VOLTAGE Vs. OUTPUT LOAD
DSP1N5S17
OUTPUT LOAD (mA)
OUTPUT VOLTAGE (VOLTS)
80
60
5-7 VOLT OUTPUT
12-17 VOLT OUTPUT
20
40
16 020
40 60 80 100
EFFICIENCY Vs. OUTPUT LOAD
% OF RATED LOAD (%)
EFFICIENCY (%)
1
2
4
+ OUTPUT
- OUT
+ INPUT
– INPUT
OSCILLATOR
DRIVER
3
DSP1 SERIES BLOCK DIAGRAM
50
0.4
0.6
0.8
1
60 70 80 90 100
OUTPUT POWER DERATING
AMBIENT TEMPERATURE
POWER OUTPUT
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components
in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective
divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
