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R-78B1.5-2.0 Datasheet Preview

R-78B1.5-2.0 Datasheet

DC/DC Converter

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Features
Switching
Regulator
• Efficiency up to 96%, no need for heatsinks
• 2A continuous output current
• Vin up to 32V
• Vout: 1.2V - 15V
• Wide operating temperature -40°C to +70°C at full load
• Continuous short circuit protection
• Pin compatible with TO220 linear regulators
• Positive to negative
DC/DC Converter
R-78B-2.0
Description
The R-78Bxx-2.0 series high efficiency switching regulators are ideally suited to replace 78xx linear
regulators and are pin compatible. The efficiency of up to 96% means that very little energy is wasted
as heat. Full power is available over a temperature range of -40°C up to 70°C without the need for
heatsinks with their additional space and mounting costs. A high input voltage of up to 32VDC and
output voltages from 1.2V up to 15V, low ripple and noise figures and a short circuit input current of
typically only 50mA round off the specifications of this versatile converter series.
2.0 Amp
SIP3
Single Output
Selection Guide
Part
Number
R-78B1.2-2.0
R-78B1.5-2.0
R-78B1.8-2.0
R-78B2.5-2.0
R-78B3.3-2.0
R-78B5.0-2.0
R-78B9.0-2.0
R-78B12-2.0
R-78B15-2.0
Input
Voltage Range
[VDC]
4.75 - 32
4.75 - 32
4.75 - 32
4.75 - 32
4.75 - 32
6.5 - 32
11 - 32
15 - 32
18 - 32
Output
Voltage
[VDC]
1.2
1.5
1.8
2.5
3.3
5
9
12
15
Output
Current
[mA]
2000
2000
2000
2000
2000
2000
2000
2000
2000
Efficiency @ full load
@ min Vin @ max. Vin
[%] [%]
87 72
90 79
91 80
92 84
92 86
94 90
95 93
96 94
96 95
Max. Capacitive
Load (1)
[µF]
3300
3300
3300
2300
1800
820
620
470
470
Notes:
Note1: Max. cap load is tested by nominal input and full resisitive load
Model Numbering
R-78B__-2.0
Output Voltage
Output Current
IEC62368-1 certified
EN62368-1 certified
EN55032 compliant
CB report
www.recom-power.com
REV.: 4/2019
I-1




RECOM

R-78B1.5-2.0 Datasheet Preview

R-78B1.5-2.0 Datasheet

DC/DC Converter

No Preview Available !

R-78B-2.0
DC/DC Converter
Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified)
Series
BASIC CHARACTERISTICS
Parameter
Input Voltage Range
Maximum Reverse Voltage
Inrush Current
Quiescent Current
Internal Power Dissipation
Start-up time
Rise Time
Internal Operating Frequency
Minimum Load
Output Ripple and Noise (2)
nom. Vin= 24VDC
Condition
1.2Vout - 3.3Vout
5Vout
9Vout
12Vout
15Vout
Min.
4.75VDC
6.5VDC
11VDC
15VDC
18VDC
Typ.
24VDC
nom. Vin= 24VDC
Vout= 1.5VDC
nom. Vin= 24VDC
0%
20MHz BW
Vout 3.3VDC
Vout 5VDC
Notes:
Note2: Measurements are made with a 100nF MLCC across output (low ESR)
2A
2mA
0.35W
10ms
50µs
460kHz
50mVp-p
75mVp-p
Max.
32VDC
0V
0.8W
Efficiency vs. Load
R-78B3.3-2.0
R-78B5.0-2.0
100 100
90 90
80 80
70 70
60 60
50
40
30
20
10
0
0 10 20 30 40 50 60 70
Output Load [%]
Efficiency vs. Input Voltage
R-78B3.3-2.0
4.75Vin
6Vin
9Vin
12Vin
15Vin
24Vin
32Vin
80 90 100
50
40
30 6.5Vin
12Vin
20 15Vin
10
24Vin
32Vin
0
0 10 20 30 40 50 60 70 80 90 100
Output Load [%]
R-78B5.0-2.0
100 100
90 90
80 80
70 70
60 60
50 50
40 40
30 30
20 20
10 10
0
4.75 9
13 17 21 25
Input Voltage [VDC]
29 32
0
6.5 10
14 18 22
Input Voltage [VDC]
26
30 32
www.recom-power.com
REV.: 4/2019
I-2


Part Number R-78B1.5-2.0
Description DC/DC Converter
Maker RECOM
Total Page 6 Pages
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