●
Features
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Efficiency up to 97%,Non isolated,
no need for heatsinks
Pin-out compatible with LM78XX Linears
Low profile( L*W*H=11.5*8.5*17.5mm)
Wide input range.(4.75V ~ 34V)
Short circuit protection, Thermal shutdown
Low ripple and noise
“L” version with 90° pins
See Innoline Application Notes for use as an
inverter (alternative to LM79xx Linear)
INNOLINE
DC/DC-Converter
with 3 year Warranty
1.0 AMP
SIP3
Single Output
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.
Selection Guide
Part
Number
SIP3
Input
Range
(V)
Output
Voltage
(V)
Output
Current
(A)
Efficiency
Min. Vin
Max. Vin
(%)
(%)
R-78B1.5-1.0
4.75 – 26
1.5
1.0
77
71
R-78B1.8-1.0
4.75 – 26
1.8
1.0
80
74
R-78B2.5-1.0
4.75 – 32
2.5
1.0
85
78
R-78B3.3-1.0
4.75 – 32
3.3
1.0
89
83
R-78B5.0-1.0
6.5 – 32
5.0
1.0
93
88
R-78B6.5-1.0
9.0 – 32
6.5
1.0
94
90
R-78B9.0-1.0
12 – 32
9.0
1.0
95
93
R-78B12-1.0
16 – 32
12
1.0
96
95
R-78B15-1.0
20 – 32
15
1.0
97
96
RoHS
2011/65/EU
6/6
EN-55022 Certified
EN-55024 Certified
EN-60601-1-2 Certified
IEC/EN-60950-1 Certified
R-78B-1.0
* add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.0L
Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%)
Conditions
1.5V, 1.8V
2.5V to 15.5V
Min.
4.75V
4.75V
Typ.
25
32
Max.
26V abs. max.
34V abs. max.
Output Voltage Range (for customized parts)
All Series
1.5V
15.5V
Output Current (see Note 1)
All Series
0mA*
1000mA
Short Circuit Input Current (Vin = 24V)
All Series
(Ambient Temperature)
120
100
60mA
Internal Power Dissipation
0.65W
Short Circuit Protection
Continuous, automatic recovery
Output Voltage Accuracy (At 100% Load)
All Series
Line Voltage Regulation (Vin = min. to max. at full load) 1.5V to 6.5V
9V to 15.5V
Load Regulation (10% to 100% full load)
1.5V to 6.5V
9V to 15.5V
Dynamic Load Stability (with Output Capacitor=100µF) 100% <-> 50% load
Transient Recovery Time
Ripple & Noise (without Output Capacitor)
1.5V to 6.5V
(10% to 100% full load)
9V to 15.5V
Temperature Coefficient
Derating-Graph
±2%
0.2%
0.1%
0.4%
0.25%
±100mV
1.0ms
15mVp-p
25mVp-p
-40°C ~ +85°C ambient
±3%
0.4%
0.2%
0.6%
0.4%
±150mV
1.5ms
20mVp-p
35mVp-p
Output Power (%)
Characteristics
Input Voltage Range
80
60
40
20
0
Safe Operating Area
-40
0
25
50
Operating Temperature (°C)
85
75
100
71
0.015%/°C
continued on next page
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REV: 1/2016
I-21
R-78Bxx-1.0
(L) Series
INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%)
Characteristics
Max capacitance Load
Conditions
with normal start-up time, no external components
with <1 second start up time + diode protection circuit
Switching Frequency
Quiescent Current
Vin = min. to max. at 0% load
Input Reflected Ripple Current
All Series
Min.
Typ.
Max.
470µF
6800µF
280kHz
330kHz
380kHz
5mA
7mA
150mA
Operating Temperature Range
200mAp-p
-40°C
+85°C
Operating Case Temperature
+100°C
Storage Temperature Range
-55°C
+125°C
Case Thermal Impedance
60°C / W
Relative Humidity
95% RH
Case Material
Epoxy with Non-Conductive Plastic Case (UL94V-0)
Potting Material
Silicone (UL94V-0)
Package Weight
4g
Packing Quantity
Conducted Emissions
Radiated Emissions
ESD
IEC/EN General Safety
MTBF (+25°C)
.
(+71°C)
}
42 pcs per Tube
Class B
Class B
Class A
IEC/EN-60950-1, 2nd Edition + AM:2
EN55022
EN55022
EN61000-4-2
Report: LVD 1603123
Detailed Information see
Application Notes chapter "MTBF"
using MIL-HDBK 217F
6584 x 10³ hours
using MIL-HDBK 217F
1139 x 10³ hours
*Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 10mA is recommended
Typical Application Circuit
R-78B-1.0
+Vin
+Vout
R-78Bxx-1.0
C1
22µF
(Vin>30V)
GND
GND
To protect the converter during power-up, use C1=22µF if Vin>30V
Characteristics
Ripple
Efficiency
100
75
Vo=1.8V
Vo=1.5V
Vo=15V
Vo=12V
Vo=9V
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=2.5V
50
Ripple (mV)
Efficiency (%)
25
10
20
10
34
20
34
Vin ( V )
Vin ( V )
Ripple Vs Vin ( Full Load )
Efficiency Vs Vin (Full Load)
I-22
Vo=15V
Vo=9V,12V
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=2.5V
Vo=1.5V,1.8V
25
50
REV: 1/2016
www.recom-power.com
R-78Bxx-1.0
(L) Series
INNOLINE
DC/DC-Converter
Characteristics
Ripple
Efficiency
Vo=15V
Vo=12V
Vo=9V
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
100
75
50
Vo=15V
Vo=9V, 12V
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=2.5V
Vo=1.5V, 1.8V
25
Ripple (mV)
Efficiency (%)
50
25
0.2
0.4
0.6
0.8
1.0
1.2
0.2
Output Current ( A )
0.6
0.8
1.0
1.2
Output Current ( A )
Efficiency Vs Load ( Vin=Max )
Ripple Vs Load ( Vin=Max )
Vo=15V
Vo=12V
Vo=9V, 6,5V
Vo=5V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
100
75
50
25
25
0.2
0.4
0.6
0.8
1.0
0.2
1.2
0.4
0.6
0.8
1.0
1.2
Output Current ( A )
Output Current ( A )
Ripple Vs Load ( Vin=Min )
Efficiency Vs Load ( Vin=Min )
Optional Protection Circuit
Optional Protection 2:
Optional Protection 1:
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).
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+Vin
R-78xx-xx
+Vout
+Vin
Vout=
+Vout 0.3V
R-78xx-xx
Schottky Diode
GND
GND
REV: 1/2016
GND
GND
I-23
R-78B-1.0
Vo=9V,12V,15V
Vo=6.5V
Vo=2.5V,3.3V,5V
Vo=1.5V,1.8V
Ripple (mV)
50
Efficiency (%)
0.4
R-78Bxx-1.0
(L) Series
INNOLINE
DC/DC-Converter
Application Examples
High efficiency multiple output
R-78B5.0-1.0
+Vin
+5V@0.4A
RD-0512D
+12V@84mA
C1
C2
0V Com
-12V@84mA
GND
C1: optional, C2: required (further
decoupling filtering may be necessary - Wide input range 6.5V to 34V
between the two converters)
- +/-12V outputs for analogue circuits, e.g. instrumentation amplifier
- +5V output for digital circuits
Isolated, wide Input range, Distributed Power Architecture (Point of Load)
RP10-4812SEW
+12V@0.1A
+Vin
R-78B5.0-1.0
C1
GND
+5V@1A
C2
R-78B-1.0
- High isolation voltage - 1.6kV
- Improved loading / line regulation
- Wide Input Voltage Range - 18~75V
- Point-of-Load Architecture
- C1 is required. Further decoupling filtering
may be necessary between the converters
C2,C3 : optional
R-78B3.3-1.0
+3.3V@1A
C3
0V
Package Style and Pinning (mm)
SIP3 PIN Package
8.50
8.50
17.5
RECOM
R-78B5.0-1.0
****
Pb
Front View
0.51 typ.
1.50 max
L - Version
Recommended Footprint Details
1.00 ø+0.15/–0
11.50
2.54
Bottom View
0.25
3.21
5.08
2.0
Top View
RECOM
R-78B5.0-1.0
****
Pb
4.10
0.7 ±1.0
4.10
Front View
1 2 3
Pin Connections
Pin #
1
+Vin
2
GND
3
+Vout
xx.x ±0.5mm
xx.xx ±0.25mm
2.54
The product information and specifications are subject to change without prior notice. RECOM products are not authorized for use in safety-critical applications (such as life support) without RECOM’s explicit
written consent. A safety-critical application is defined as an application where a failure of a RECOM product may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The buyer
shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications.
I-24
REV: 1/2016
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Authorized Distributor
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RECOM:
R-78B12-1.0 R-78B3.3-1.0 R-78B5.0-1.0 R-78B6.5-1.0 R-78B1.5-1.0 R-78B1.5-1.0L R-78B1.8-1.0 R-78B1.8-1.0L
R-78B12-1.0L R-78B15-1.0 R-78B15-1.0L R-78B2.5-1.0 R-78B2.5-1.0L R-78B3.3-1.0L R-78B5.0-1.0L R-78B6.51.0L R-78B9.0-1.0 R-78B9.0-1.0L