Datasheet
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REV.: 2/2018 I-3
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
R-78T-1.0
Series
REGULATIONS
Parameter Condition Value
Output Accuracy full load ±2.0% typ. / ±3.0% max.
Line Regulation low line to high line, full load ±0.2% typ.
Load Regulation 10% to 100% load ±0.4% typ.
Transient Response 50mA/uS 100% - 50% load ±250mV max.
R-78T12-1.0
Efficiency vs. Load Ripple vs. Load
10 20 30 40 50 60 70 80 90 100
100
80
60
40
90
70
50
30
20
10
0
Efficiency [%]
Output Load [%]
15Vin
24Vin
36Vin
42Vin
100 20 30 40 50 60 70 80 90 100
40
30
20
45
35
25
15
10
5
0
Ripple & Noise [mVp-p]
Output Load [%]
24Vin
36Vin
42Vin
PROTECTIONS
Parameter Condition Value
Short Circuit Protection (SCP) current limited to 3.5A typ.
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range with derating @ free air convection (see graph) -40°C to +85°C
Operating Humidity non-condensing 5% - 95% RH max.
MTBF according to MIL-HDBK-217F, G.B. +25°C 6318 x 10
3
hours
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