Datasheet

cui.com
CUI Inc │ SERIES: V78-500 │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR date 11/08/2012 │ page 2 of 6
INPUT
parameter conditions/description min typ max units
operating input voltage
1.5 V output
1.8 V output
2.5 V output
3.3 V output
5 V output
6 V output
9 V output
12 V output
15 V output
4.75
4.75
4.75
4.75
6.5
8
11
15
18
12
12
12
24
24
24
24
24
24
26
28
28
28
32
32
32
32
32
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
OUTPUT
parameter conditions/description min typ max units
line regulation
Vin = min ~ max,
at full load
1.5~2.5 V models
3.3~15 V models
±0.5
±0.2
±1.0
±0.4
%
%
load regulation
measured from
10% load to full load
1.5~2.5 V models
3.3~15 V models
±0.4
±0.4
±0.75
±0.6
%
%
voltage accuracy 100% load ±2 ±3 %
switching frequency 100% load, input voltage range 280 330 450 kHz
temperature coeffi cient ±0.02 %/°C
PROTECTIONS
parameter conditions/description min typ max units
short circuit protection continuous, automatic recovery
thermal shutdown internal IC junction 150 °C
SAFETY AND COMPLIANCE
parameter conditions/description min typ max units
MTBF 2,000,000 hours
RoHS compliant yes
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature -40 85 °C
storage temperature -55 125 °C
case temperature 100 °C
storage humidity non-condensing 95 %
temperature rise at full load 25 °C
lead temperature 1.5 mm from case for 10 seconds 300 °C
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