DAK-71A Power Integrations, DAK-71A Datasheet - Page 13

• Manufacturer Part Number: DAK-71A
• Description: KIT DESIGN ACCELERATOR DC-DC
• Manufacturer: Power Integrations
• Series: DPA-Switch®r

Specifications of DAK-71A

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Isolated
• Voltage - Output: 3.3V
• Current - Output: 2A
• Voltage - Input: 36 ~ 72V
• Regulator Topology: Flyback
• Frequency - Switching: 400kHz
• Board Type: Bare (Unpopulated) and Fully Populated
• Utilized Ic / Part: DPA423, DPA424, DPA425
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 596-1009

19-Jul-2005
9 Performance Data
All measurements were performed at room temperature utilizing a DC input source and
DC dynamic loads. Input and output voltages and current were measured with dedicated
DVMs.
9.1 Efficiency
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82%
81%
80%
79%
78%
77%
76%
75%
74%
73%
72%
0.50
Figure 7 - Efficiency vs. Output Load, Room Temperature.
0.75
1.00
Load Current (A)
1.25
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EP-71 3.3 V, 2 A DC-DC Power Supply
VIN = 36 VDC
VIN = 48 VDC
VIN = 57 VDC
VIN = 75 VDC
1.50
1.75
Power Integrations
www.powerint.com
2.00