Datasheet

ManualsBrandsRECOM ManualsPSU ComponentsDC/DC Converter SIP3

www.recom-power.com

REV.: 4/2019 I-1

Features

Switching

Regulator

• Efﬁciency up to 94%, no need for heatsinks

• Pin compatible with LM78XX linears

• Low proﬁle (L/W/H=11.5 x 7.55 x 10.2mm)

• Wide input range

• Short circuit protection, thermal shutdown

• Low ripple and noise

• IEC/EN60950-1 certiﬁed

R-78-1.0

Description

The R-78xx-1.0 series switching regulators are ideally suited to replace 1 Amp 78xx linear regulators

and are pin compatible. Efﬁciencies of up to 94% mean that very little energy is wasted as heat so there

is no need for any heat sinks with their additional space and mounting costs.

DC/DC Converter

1.0 Amp

SIP3

Single Output

IEC/EN60950-1 certiﬁed

EN55032 compliant

Selection Guide

Part Input Output Output Efﬁciency

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

[VDC] [VDC] [A] [%] [%]

R-781.8-1.0 4.75 - 18 1.8 1.0 82 76

R-782.5-1.0 4.75 - 18 2.5 1.0 87 81

R-783.3-1.0 4.75 - 18 3.3 1.0 90 84

R-785.0-1.0 6.5 - 18 5.0 1.0 94 89

Speciﬁcations (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)

BASIC CHARACTERISTICS

Parameter Condition Min. Typ. Max.

Quiescent Current Vin = min. to max. at 0% load

5mA 7mA

Internal Power Dissipation

0.4W

Minimum Load

(1)

Internal Operating Frequency

280kHz 350kHz 430kHz

Output Ripple and Noise measured at 20MHz BW 20mVp-p 30mVp-p

Absolute Maximum

Capacitive Load

1 second start up, no external components 220µF

<1 second start up + diode protection circuit 6800µF

continued on next page

Notes:

Note1: Operation under no load will not harm the converter, but speciﬁcations may not be met

A minimum load of 10mA is recommended

Model Numbering

Output Voltage Output Current

R-78__-1.0

Summary of content (6 pages)

PAGE 1
• • • • • • • Features Switching Regulator Efficiency up to 94%, no need for heatsinks Pin compatible with LM78XX linears Low profile (L/W/H=11.5 x 7.55 x 10.2mm) Wide input range Short circuit protection, thermal shutdown Low ripple and noise IEC/EN60950-1 certified DC/DC Converter R-78-1.0 Description The R-78xx-1.0 series switching regulators are ideally suited to replace 1 Amp 78xx linear regulators and are pin compatible.
PAGE 2
R-78xx-1.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) Ripple vs. Vin (full load) 100 50 90 45 80 40 70 35 Ripple [mV] Efficiency [%] Efficiency vs. Vin (full load) 60 50 40 30 10 0 5 7 30 25 20 15 5Vout 3.3Vout 2.5Vout 1.8Vout 20 5Vout 3.3Vout 2.5Vout 1.
PAGE 3
R-78xx-1.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) REGULATIONS Parameter Condition Value Output Accuracy 100% load ±2.0% typ / ±3.0% max. Line Regulation low line to high line, 100% load ±0.2% typ. / ±0.4% max. Load Regulation 10% to 100% load ±0.4% typ. / ±0.6% max. Transient Response 100% <-> 50% load ±85mV typ. / ±100mV max.
PAGE 4
R-78xx-1.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) SAFETY AND CERTIFICATIONS Certificate Type (Safety) Report / File Number Information Technology Equipment, General Requirements for Safety Standard IEC60950-1:2005, 2nd Edition + AM 2:2013 EN60950-1:2006 + AM 2:2013 1603123 EAC RU-AT.49.
PAGE 5
R-78xx-1.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) Dimension Drawing (mm) embossed logo 11.5 7.55 0.70+0.10/-0.05 5.08 4.10 0.51 10.2 Marking 0.25±0.05 3.21 Tolerance: xx.x= ±0.5mm xx.xx= ±0.25mm Recommended Footprint Details Top View 1 2 3 2.54 2.00 1 2 3 Bottom View Pin Connections Pin # Single 1 +Vin 2 GND 3 +Vout 2.
PAGE 6
R-78xx-1.0 DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) PACKAGING INFORMATION Parameter Type Value Packaging Dimension (LxWxH) tube 520.0 x 9.3 x 16.5mm Packaging Quantity tube 42pcs Storage Temperature Range -55°C to +125°C Storage Humidity 95% RH max. The product information and specifications may be subject to changes even without prior written notice.