Datasheet

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REV.: 5/2019 I-2
DC/DC Converter
R-78HBxx-0.5(L)
Series
Parameter Condition Min. Typ. Max.
Internal Operating Frequency nom. Vin= 48VDC 120kHz 800kHz
Output Ripple and Noise 20MHz BW (10 - 100% load) 20mVp-p 60mVp-p
Absolute Maximum
Capacitive Load
1 second start up, no external components
<1 second start up + diode protection circuit
100µF
6800µF
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Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
Efficiency vs. Vin (full load)
Switching Frequency vs. Load
Ripple vs. Vin (full load)
9 18 27 36 45 54 63 72
100
80
60
40
90
70
50
30
20
10
0
Efficiency [%]
Input Voltage [VDC]
24Vout
15Vout
12Vout
9Vout
6.5Vout
5Vout
3.3Vout
10 50 100 200 300 400 500
400
100
800
200
50
10
Frequency [kHz]
Output Current (mA)
24Vout
15Vout
12Vout
9Vout
6.5Vout
5Vout
3.3Vout
9 18 27 36 45 54 63 72
50
40
30
20
45
35
25
15
10
5
0
Ripple [mV]
Input Voltage [VDC]
24Vout
15, 12Vout
9Vout
6.5Vout
5Vout
3.3Vout