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I-12 www.recom-power.comREV: 0/2014
R-78-1.0
INNOLINE
DC/DC-Converter
with 3 year Warranty
R-78-1.0
1.0 AMP
SIP3
Single Output
● Efficiency up to 94%, no need for heatsinks!
● Pin-out compatible with LM78XX Linear Regs.
● Low profile (L*W*H=11.5*7.5*10.2mm)
● Wide input range (4.75V ~ 18V)
● Short circuit protection, thermal shutdown
● Non standard outputs available as specials
● Low ripple and noise
Features
Selection Guide
Part Input Output Output Efficiency
Number Range Voltage Current Min. Vin Max. Vin
SIP3 (V) (V) (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
Output Power (%)
120
100
20
60
100750
-40
Operating Temperature (°C)
0
80
5025
60
Safe Operating Area
85
40
30
Derating-Graph
(Ambient Temperature)
Characteristics Conditions Min. Typ. Max.
Input Voltage Range All Series 4.75V 18V
Output Voltage Range All Series 1.5V 5.5V
Output Current All Series 0mA* 1000mA
Output Current Limit All Series 3000mA
Short Circuit Input Current (Vin =12V) All Series 100mA
Internal Power Dissipation 0.4W
Short Circuit Protection Continuous, automatic recovery
Output Voltage Accuracy (At 100% Load) All Series ±2% ±3%
Line Regulation (100% Load, Vin max.) All Series 0.2% 0.4%
Load Regulation (10 to 100% full load) All Series 0.4% 0.6%
Dynamic Load Stability 100% <-> 50% load ±85mV ±100mV
Ripple & Noise (20Mhz BW) All Series 20mVp-p 30mVp-p
Temperature Coefficient -40°C ~ +85°C ambient 0.015%/°C
Max capacitance Load with normal start-up time, no external components 470µF
with <1 second start up time + diode protection circuit 6800µF
Switching Frequency 280kHz 350kHz 430kHz
Quiescent Current Vin = min. to max. at 0% load 5mA 7mA
Operating Temperature Range -40°C to +85°C
Operating Case Temperature (with derating) +100°C
Storage Temperature Range -55°C to +125°C
Case Thermal Impendance 70°C/W
Thermal Shutdown Internal IC junction +160°C
Case Material Non-Conductive Black Plastic
Potting Material Epoxy (UL94V-0)
Conducted Emissions (with filter) EN55022 Class B
Radiated Emissions (with filter) EN55022 Class B
ESD EN61000-4-2 Class A
Radiated Immunity EN61000-4-3 Class A
Fast Transient EN61000-4-4 Class A
Conducted Immunity EN61000-4-6 Class A
Magnetic Field Immunity EN61000-4-8 Class A
Certifications
General Safety Report: SPCLVD 1301026-1 EN 60950-1:2006 + Al2:2011
EMC Report: 5A111502E EN 55022, EN55024, EN61000
Package Weight 1.9g
Packing Quantity 42 pcs per Tube
MTBF (+25°C) using MIL-HDBK 217F 13338 x 10³ hours.
(+71°C) using MIL-HDBK 217F 3880 x 10³ hours.
Specifications
( typical at 25°C, 10% minimum load, unless otherwise specified )
}
Detailed Information see
Application Notes chapter "MTBF"
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 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
.
Description
EN-55022 Certified
EN-55024 Certified
EN-60950-1 Certified
RoHS
2011/65/EU
6/6
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R-78-1.0
www.recom-international.com I-13REV: 0/2014
Efficiency (%)
50
5
Efficiency Vs
Vin (Full Load)
Vo=1.8V
Vo=2.5V
Vo=5V
Vo=3.3V
25
Vin ( V )
10
15
18
75
100
Efficiency
Efficiency (%)
100
0.2
Efficiency Vs
Load ( Vin=Max )
Vo=1.8V
Vo=3.3V
Vo=5V
Vo=2.5V
50
Output Current ( A )
0.4
0.6
0.8
1.0
1.2
75
25
Efficiency (%)
100
0.2
Efficiency Vs
Load ( Vin=Min )
Vo=1.8V
Vo=3.3V
Vo=5V
Vo=2.5V
50
Output Current ( A )
0.4
0.6
0.8
1.0
1.2
75
25
Ripple (mV)
50
5
Ripple Vs
Vin ( Full Load )
Vo=1.8V
Vo=2.5V
Vo=5V
Vo=3.3V
25
Vin ( V )
10
15
18
Ripple
Ripple (mV)
50
0.2
Ripple Vs
Load ( Vin=Max )
Vo=1.8V
Vo=2.5V
Vo=5V
Vo=3.3V
25
Output Current ( A )
0.4
0.6
0.8
1.0
1.2
Ripple (mV)
50
0.2
Ripple Vs
Load ( Vin=Min )
Vo=1.8V
Vo=2.5V
Vo=5V
Vo=3.3V
25
Output Current ( A )
0.4
0.6
0.8
1.0
1.2
R-78xx-1.0
Series
Characteristics
INNOLINE
DC/DC-Converter
Add a blocking diode to Vout if
current can flow backwards into
the output, as this can damage
the converter when it is powered
down.
The diode can either be fitted
across the device if the source is
low impedance or fitted in series
with the output (recommended).
Optional Protection Circuit
Optional Protection 1:
Optional Protection 2:
R-78xx-xx
-Vout
+Vout
+Vin
-Vin
R-78xx-xx
-Vout
Vout=
+Vout -
0.3V
+Vin
-Vin
Schottky Diode
*Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 10mA is recommended
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I-14 www.recom-power.comREV: 0/2014
R-78-1.0
2.54
2.54
Top View
Bottom View
Front
7.55
2.0
0.25
5.08
3.21
213
4.10
0.51 typ.
0.7 typ.
10.2
RECOM
R-785.0-1.0
****
Pb
1.00ø+0.15/0
11.50
RECOM
R-785.0-1.0
****
Pb
Application Examples
INNOLINE
DC/DC-Converter
Package Style and Pinning (mm)
SIP3 PIN Package
+Vin
-Vin
R-785.0-1.0
-15VDC
+15VDC
Com
C1 C2
REC3-0515DRW/H4
- Medical Grade Isolated Dual Outputs
- Wide input range 6.5V to 18V
C1: Optional , C2 : Required (further decoupling filtering
may be necessary between the two converters)
- High Efficiency, Suitable for 12V Battery Powered Devices
+Vin
-Vin
R-78xx-1.0
-Vout
+Vout
C1
C2
DC/DC Converter ( 1:1 )
- Improved loading / line regulation
- Wide Input Voltage Range
C1 , C2 : optional
- Point-of-Load Architecture
- High isolation voltage
R-78xx-1.0
Series
High efficiency, isolated, dual regulated outputs
Isolated (up to 6KV), wide Input range regulated output
Pin Connections
Pin #
1 +Vin
2 GND
3 +Vout
xx.x ±0.5mm
xx.xx ±0.25mm
Recommended Footprint Details
The product information and specifications are subject to change without prior notice. All products are designed for non-safety critical commercial and industrial applications.
The Buyer agrees to implement safeguards that anticipate the consequences of any failures that might cause harm, loss of life and/or damage property.
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