Datasheet

ManualsBrandsRecom ManualsBoard Mounted DC / DC ConvertersDC/DC Converter 18 ... 32V 15V 2A

www.recom-power.com

REV.: 4/2019 I-1

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 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.

DC/DC Converter

2.0 Amp

SIP3

Single Output

IEC62368-1 certiﬁed

EN62368-1 certiﬁed

EN55032 compliant

CB report

Selection Guide

Part Input Output Output Efﬁciency @ full load Max. Capacitive

Number Voltage Range Voltage Current @ min Vin @ max. Vin Load

(1)

[VDC] [VDC] [mA] [%] [%] [µF]

R-78B1.2-2.0 4.75 - 32 1.2 2000 87 72 3300

R-78B1.5-2.0 4.75 - 32 1.5 2000 90 79 3300

R-78B1.8-2.0 4.75 - 32 1.8 2000 91 80 3300

R-78B2.5-2.0 4.75 - 32 2.5 2000 92 84 2300

R-78B3.3-2.0 4.75 - 32 3.3 2000 92 86 1800

R-78B5.0-2.0 6.5 - 32 5 2000 94 90 820

R-78B9.0-2.0 11 - 32 9 2000 95 93 620

R-78B12-2.0 15 - 32 12 2000 96 94 470

R-78B15-2.0 18 - 32 15 2000 96 95 470

Notes:

Note1: Max. cap load is tested by nominal input and full resisitive load

Model Numbering

Output Voltage Output Current

R-78B__-2.0

Summary of content (6 pages)

PAGE 1
• • • • • • • • 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 converter Description The R-78Bxx-2.0 series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible.
PAGE 2
R-78B-2.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified) BASIC CHARACTERISTICS Parameter Condition Input Voltage Range 1.2Vout - 3.3Vout 5Vout 9Vout 12Vout 15Vout nom. Vin= 24VDC Min. Typ. Max. 4.75VDC 6.5VDC 11VDC 15VDC 18VDC 24VDC 32VDC Maximum Reverse Voltage 0V Inrush Current 2A Quiescent Current nom. Vin= 24VDC 2mA Vout= 1.5VDC 0.35W Internal Power Dissipation Start-up time 0.
PAGE 3
R-78B-2.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified) REGULATIONS Parameter Condition Value Output Accuracy 100% load ±2.0% typ. Line Regulation low line to high line, full load ±0.5% typ. Load Regulation 0% to 100% load ±1.0% typ. PROTECTIONS Parameter Condition Short Circuit Protection (SCP) Value below 100mW Short Circuit Input Current nom.
PAGE 4
R-78B-2.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified) SAFETY AND CERTIFICATIONS Certificate Type (Safety) Report / File Number Standard Audio/video, information and communication technology equipment Safety requirements (CB Scheme) L0339m38-B1-L IEC62368-1: 2014, 2nd Edition EN62368-1: 2014 EAC RU-AT.49.
PAGE 5
R-78B-2.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified) Dimension Drawing (mm) embossed logo 8.5 17.5 11.5 Pin Connections Pin # Single 1 +Vin 2 GND 3 +Vout 0.51 Marking 0.64+0.10/-0.05 4.10 0.64+0.10/-0.05 Tolerance: xx.x= ±0.5mm xx.xx= ±0.25mm 2.54 Recommended Footprint Details Bottom View 1 2 3 1 2 3 5.08 2.00 3.21 Top View 2.
PAGE 6
R-78B-2.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, nom. Vin, full load and after warm up unless otherwise specified) PACKAGING INFORMATION Parameter Type Value Packaging Dimension (LxWxH) tube 520.0 x 25.1 x 10.6mm Packaging Quantity 42pcs Storage Temperature Range Storage Humidity -55°C to +125°C non-condensing 95% RH max. The product information and specifications may be subject to changes even without prior written notice.