Datasheet

ManualsBrandsRECOM ManualsPSU ComponentsDC/DC Converter SIP3

www.recom-power.com

REV.: 4/2019 I-1

Features

Switching

Regulator

• Efﬁciency up to 97%, no heatsinks required

• Pin compatible with LM78XX linears

• Low proﬁle (L/W/H=11.5 x 8.5 x 17.5mm)

• Wide input range

• Short circuit protection, thermal shutdown

• Low ripple and noise

• „L“ version with 90° pins

R-78B-1.0(L)

Description

The R-78Bxx-1.0 series high efﬁciency switching regulators are ideally suited to replace 78xx

linear regulators and are pin compatible. The efﬁciency of up to 97% means that very little energy is

wasted as heat so there is no need for any heat sinks with their additional space and mounting costs.

The L-Version with 90° pins allows direct replacement for laid-ﬂat regulators where component height

is at a premium. Low ripple and noise ﬁgures and a short circuit input current of typically only 10mA

round off the speciﬁcations of this versatile converter series.

DC/DC Converter

1.0 Amp

SIP3

Single Output

EN55032 compliant

IEC/EN60950-1 certiﬁed

BASIC CHARACTERISTICS

Parameter Condition Min. Typ. Max.

Absolute Maximum Input

Voltage

1.5Vout , 1.8Vout

2.5Vout to 15Vout

26VDC

34VDC

Quiescent Current nom. Vin= 24VDC 5mA 7mA

Internal Power Dissipation Vout= 1.5VDC 0.65W

Internal Operating Frequency

nom. Vin= 24VDC 280kHz 330kHz 380kHz

Minimum Load

(2)

Output Ripple and Noise

(3)

20MHz BW

1.5Vout to 6.5Vout

9Vout to 15Vout

15mVp-p

25mVp-p

20mVp-p

35mVp-p

Ref. Back Ripple Current 150mA

200mAp-p

Absolute Maximum

Capacitive Load

1 second start up, no external components

<1 second start up + diode protection circuit

470µF

6800µF

continued on next page

Selection Guide

Part Input Output Output Efﬁciency

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

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

R-78B1.5-1.0

(1)

4.75 - 26 1.5 1.0 77 71

R-78B1.8-1.0

(1)

4.75 - 26 1.8 1.0 80 74

R-78B2.5-1.0

(1)

4.75 - 32 2.5 1.0 85 78

R-78B3.3-1.0

(1)

4.75 - 32 3.3 1.0 89 83

R-78B5.0-1.0

(1)

6.5 - 32 5.0 1.0 93 88

R-78B6.5-1.0

(1)

9.0 - 32 6.5 1.0 94 90

R-78B9.0-1.0

(1)

12 - 32 9.0 1.0 95 93

R-78B12-1.0

(1)

16 - 32 12 1.0 96 95

R-78B15-1.0

(1)

20 - 32 15 1.0 97 96

Notes:

Note1: add sufﬁx “L” for 90° bent pins, e.g. R-78B5.0-1.0L

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

Notes:

Note2: Operation under no load will not harm the converter, but speciﬁcations may not be met

A minimum load of 10mA is recommended

Note3: Output Ripple and Noise is tested from 10% to 100% load

Model Numbering

Output Voltage Pinning

Output Current

R-78B__-1.0(L)

Summary of content (7 pages)

PAGE 1
• • • • • • • Features Switching Regulator Efficiency up to 97%, no heatsinks required Pin compatible with LM78XX linears Low profile (L/W/H=11.5 x 8.5 x 17.5mm) Wide input range Short circuit protection, thermal shutdown Low ripple and noise „L“ version with 90° pins DC/DC Converter R-78B-1.0(L) Description The R-78Bxx-1.0 series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible.
PAGE 2
R-78Bxx-1.0(L) 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 60 30 Ripple [mV] Efficiency [%] Efficiency vs. Vin (full load) 50 40 15Vout 12Vout 9Vout 6.5Vout 5Vout 30 20 10 0 4.75 9 13 17 25 3.3Vout 2.5Vout 1.8, 1.5Vout 25 20 15 3.3Vout 2.5Vout 1.8Vout 1.5Vout 21 15Vout 12, 9Vout 6.5Vout 5Vout 10 5 0 4.
PAGE 3
R-78Bxx-1.0(L) DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) REGULATIONS Parameter Condition Output Accuracy 100% load Value ±2.0% typ / ±3.0% max. Line Regulation low line to high line, 100% load 1.5Vout to 6.5Vout 9Vout to 15Vout Load Regulation 10% to 100% load 1.5Vout to 6.5Vout 9Vout to 15Vout 100% <-> 50% load Recovery Time Transient Response ±0.2% typ. / ±0.4% max. ±0.1% typ. / ±0.2% max. ±0.4% typ. / ±0.6% max. ±0.25% typ. / ±0.
PAGE 4
R-78Bxx-1.0(L) DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) Derating Graph 100 90 Output Load [%] 80 70 60 50 40 30 20 10 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 71 85 Ambient Temperature [°C] SAFETY AND CERTIFICATIONS Certificate Type (Safety) Report / File Number Information Technology Equipment, General Requirements for Safety 1603123 EAC Standard IEC60950-1:2005, 2nd Edition + AM 2:2013 EN60950-1:2006 + AM 2:2013 RU-AT.
PAGE 5
R-78Bxx-1.0(L) DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) DIMENSION AND PHYSICAL CHARACTERISTICS Parameter Type Value Material case potting non-conductive black plastic, (UL94 V-0) silicone, (UL94 V-0) Package Dimension (LxWxH) 11.5 x 8.5 x 17.5mm Package Weight 4g typ. Dimension Drawing (mm) with suffix “L” bent pins 11.5 8.5 Tolerance: xx.x= ±0.5mm xx.xx= ±0.25mm Marking 0.70+0.10/-0.05 0.25±0.
PAGE 6
R-78Bxx-1.0(L) DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) Selection Guide - Negative Output Part Number Input Voltage Range [VDC] 4.75 - 28 4.75 - 28 4.75 - 28 4.75 - 28 6.5 - 28 8.0 - 26 8.0 - 18 8.0 - 18 8.0 - 18 +Vin R-78B1.5-1.0 R-78B1.8-1.0 R-78B2.5-1.0 R-78B3.3-1.0 R-78B5.0-1.0 R-78B6.5-1.0 R-78B9.0-1.0 R-78B12-1.0 R-78B15-1.0 Output Voltage [VDC] -1.5 -1.8 -2.5 -3.3 -5.0 -6.5 -9.
PAGE 7
+12V @ 84mA C2 C1 0V Com R-78Bxx-1.0(L) GND -12V @ 84mA C1 optional; DC/DC Converter Specifications • Wide input range 4.75V to 34V C2 required (further decoupling filtering may • ±12Vstated) outputs for analogue circuits, e.g. instrumentation amplifier between the two converters) (measuredbe@necessary Ta= 25°C, 10% minimum load, unless otherwise • +5V output for digital circuits Series Isolated, Wide Input Range, Distributed Power Arcitecture (Point-of-Load) +12V @ 0.1A RP10-4812SEW R-78B5.0-1.