R-78B-2.0 Datasheet, PDF (1/5 Pages) Recom International Power – Efficiency Up To 96%, No Heatsinks Required

Features
Switching
Regulator
• Efficiency Up To 96%, No Heatsinks Required
• 2A Continuous Output Current
• Vin Up To 32V
• Vout: 1.2V - 15V
• Wide Operating Temperature -40°C to +70°C at Full Load
• S/C And Over-temperature 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 10mA round off the specifications of this versatile converter series.
2.0 Amp
SIP3
3^{3 YEAR}
warranty
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
[%] [%]
72 87
79 90
80 91
84 92
86 92
90 94
93 95
94 96
95 96
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
Specifications (measured @ ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified)
BASIC CHARACTERISTICS
Parameter
Input Voltage Range
Condition
1.2Vout - 3.3Vout
5Vout
nom. Vin= 24VDC
9Vout
12Vout
15Vout
Maximum Reverse Voltage
Inrush Current
Quiescent Current
nom. Vin= 24VDC
Internal Power Dissipation
Vout= 1.5VDC
Start-up time
Rise Time
Internal Operating Frequency
nom. Vin= 24VDC
Minimum Load
Output Ripple and Noise
20MHz BW
Vout ≤3.3VDC
Vout ≥5VDC
Min.
4.75VDC
6.5VDC
11VDC
15VDC
18VDC
Typ.
24VDC
2A
2mA
0.35W
10ms
50µs
460kHz
0%
50mVp-p
75mVp-p
Max.
32VDC
0V
0.8W
continued on next page
IEC/EN62368-1 (pending)
CB Report (pending)
EN55022 Compliant
www.recom-power.com
REV.: 0/2017
I-1