DGP12 SERIES – SINGLE OUTPUT
NOTES
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All parameters measured at Tc=25°C, nominal input voltage and full rated load unless otherwise
noted. Refer to the Technical Reference Section for the definition of terms, measurement circuits and
other information.
Reduced output power available at 3.5V input. Full output power is available above 4.6V input.
Noise is measured per Technical Reference Section. Measurement bandwidth is 0-20 MHz for peak-
peak measurements, 10 kHz to 1 MHz for RMS measurements. Output noise is measured with a
0.01µF ceramic in parallel with a 1µF/35V Tantalum capacitor located 1" away from the converter to
simulate your PCB’s standard decoupling.
Short term stability is specified after a 30 minute warmup at full load, constant line and recording the
drift over a 24 hour period.
No minimum load required for operation . Dynamic regulation may degrade when run with less than
5% load.
Less than 30 seconds.
DGP12 SERIES APPLICATION NOTES:
External Capacitance Requirements
No external capacitance is required for operation of the DGP12
Series. To meet the reflected ripple requirements of the converter,
an input impedance of less than 0.05 Ohms from DC to 120KHz is
required. If a capacitive input source is farther than 1” from the
converter, an additional capacitor may be required at the input
pins for proper operation. External output capacitance is not
required for operation, however it is recommended that 1 F to
10 F of tantalum and 0.001 to 0.1 F ceramic capacitance be
selected for reduced system noise. Additional output capacitance
may be added for increased filtering, but should not exceed 400 F.
Output Power
The available output power of the DGP12 Series is reduced when
operating below 4.6 volts. See Input Voltage Derating curve.
Below 4.6 volts the output power is linearly derated from 100% at
4.6 volts to 50% at 3.5 volts.
(continued next page)
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NUCLEAR AND MEDICAL APPLICATIONS Power-One products are not 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 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.
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