Features
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Efficiency up to 97%,Non isolated,
no need for heatsinks
Pin-out compatible with LM78XX Linears
Very low profile( L*W*H=11.5*7.5*10.2 )
Wide input range.(4.75V ~ 34V)
Short circuit protection, Thermal shutdown
Non standard outputs available as specials
Low ripple and noise
UL94V-0 Package Material
INNOLINE
DC/DC-Converter
EMC, Safety Certified
See Innoline Application Notes for use as an
inverter (alternative to LM79xx Linear)
Description
The R-78xx-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. Low ripple and noise figures and short circuit , overload and over-
temperature protection round off the specifications of this versatile converter series.This R-78xx-0.5 is fully certified to
EN 60601-1-2 (Medical Equipment), EN 55022 (Emissions), and EN55024 (Immunity) EMC Standards and for
EN-60950-1 Safety.
0.5 AMP
SIP3
Single Output
Selection Guide
Part
Number
SIP3
R-781.5-0.5
R-781.8-0.5
R-782.5-0.5
Input
Range (1)
(V)
4.75 – 30
4.75 – 34
4.75 – 34
4.75 – 34
6.5 – 34
8.0 – 34
11 – 34
15 – 34
18 – 34
Output
Voltage
(V)
1.5
1.8
2.5
3.3
5.0
6.5
9.0
12
15
Output
Current
(A)
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Efficiency
Min. Vin
Max. Vin
(%)
(%)
73
82
87
91
94
95
96
97
97
63
71
77
81
86
88
92
94
95
EN-55022 Certified
EN-55024 Certified
EN-60601-1-2 Certified
EN-60950-1 Certified
R-78-0.5
R-783.3-0.5
R-785.0-0.5
R-786.5-0.5
R-789.0-0.5
R-7812-0.5
R-7815-0.5
R-78-0.5
Note 1:1.5V Output can be unstable with Vin>30VDC
Standard Application Circuit
+Vin
C1
Output Power (%)
Derating-Graph
(Ambient Temperature)
R-78xx-0.5
+Vout
120
100
3.3µF
(Vin>26V)
80
60
40
20
0
Safe Operating Area
-Vin
Input capacitor needed only if Vin>26VDC.
-Vout
-40
0
25
50
Operating Temperature (°C)
85
75
100
71
I-2
REV: 1/2009
www.recom-electronic.com
INNOLINE
DC/DC-Converter
Specifications
( typical at 25°C, 10% minimum load, unless otherwise specified )
Characteristics
Input Voltage Range
Output Voltage Range (for customized parts)
Output Current (see note)
Output Current Limit
Short Circuit Input Current (Vin = 24V)
Internal Power Dissipation
Short Circuit Protection
Output Voltage Accuracy (At 100% Load)
Line Voltage Regulation (Vin = min. to max. at full load)
Load Regulation (10 to 100% full load)
Dynamic Load Stability
Ripple & Noise (without Output Capacitor)
Ripple & Noise (with Output Capacitor=100µF)
Temperature Coefficient
Max capacitance Load
Switching Frequency
Quiescent Current
Operating Temperature Range
Operating Case Temperature
Storage Temperature Range
Case Thermal Impendance
Thermal Shutdown
Conducted Emissions
Radiated Emissions
ESD
Radiated Immunity
Fast Transient
Conducted Immunity
Magnetic Field Immunity
Safety Certification
Package Weiught
MTBF (+25°C)
Internal IC junction
EN55022
EN55022
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-6
EN61000-4-8
EN-60950-1
Vin = min. to max. at 0% load
All Series
1.5V to 6.5V
9V to 15.5V
1.5V to 6.5V
9V to 15.5V
100% <-> 50% load
100% <-> 10% load
1.5V to 6.5V
9V to 15.5V
1.5V to 6.5V
9V to 15.5V
-40°C ~ +85°C ambient
Conditions
1.5V
1.8V to 15.5V
All Series
All Series
All Series
All Series
R-78xx-0.5
Series
Min.
4.75
4.75
1.25
0*
Typ.
Max.
30.0V
34.0V
15.5V
500mA
2000mA
60mA
0.4W
Continuous, automatic recovery
±2
0.2
0.1
0.4
0.25
±75mV
20mVp-p
30mVp-p
15mVp-p
25mVp-p
±3%
0.4%
0.2%
0.6%
0.4%
±100mV
30mVp-p
40mVp-p
20mVp-p
35mVp-p
0.015%/°C
220µF
280
-40°C
-55°C
330
5
380kHz
7mA
+85°C
+100°C
+125°C
70°C / W
+160°C
Class B
Class B
Class A
Class A
Class A
Class A
Class A
1.9g
R-78-0.5
(+71°C)
using MIL-HDBK 217F
4212 x 10³ hours
*Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 6mA is recommended
}
Detailed Information see
Application Notes chapter "MTBF"
using MIL-HDBK 217F
21098 x 10³ hours
www.recom-international.com
REV:1/2009
I-3
INNOLINE
DC/DC-Converter
Characteristics
R-78xx-0.5
Series
Ripple
Vo=12V,15 V
Vo=9V
Vo=5V
Vo=3.3V
Vo=1.8V
Vo=1.5V
50
Vo=12V
Vo=15V
Vo=9V
Vo=5V
Vo=3.3V
Vo=1.8V
Vo=1.5V
Vin (V)
10
20
30 34
Efficiency
100
50
25
Efficiency (%)
Vin (V)
10
20
30 34
Efficiency Vs
Vin (Full Load)
Ripple (mV)
Ripple Vs
Vin (full load)
100
50
Vo=15V
Vo=12V
Vo=5V
Vo=3.3V
Vo=1.8V
Vo=1.5V
50
25
Efficiency (%)
Ripple (mV)
Vo=12V
Vo=15V
Vo=9V
Vo=5V
Vo=3.3V
Vo=1.8V
Vo=1.5V
0.1
0.2
0.3
0.4
0.5
0.6
0.1
0.2
0.3
0.4
0.5
0.6
Output Current ( A )
Output Current ( A )
Efficiency Vs
Load ( Vin=Max )
Ripple Vs
Load ( Vin=24V )
R-78-0.5
100
Vo=12V,15V
Vo=5V
Vo=3.3V
Vo=1.8V
Vo=1.5V
50
50
25
Vo=15V
Vo=12V
Vo=1.8V
Vo=3.3, 9V
Vo=5V
Vo=1.5V
0.1
0.2
0.3
0.4
0.5
0.6
Output Current ( A )
Efficiency (%)
0.1
0.2
0.3
0.4
0.5
0.6
Output Current ( A )
Efficiency Vs
Load ( Vin=Min )
Ripple (mV)
Ripple Vs
Load ( Vin=Min )
Optional Protection Circuit
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).
Optional Protection 2:
+Vin
R-78xx-xx
+Vout
+Vin
R-78xx-xx
Schottky Diode
Vout=
+Vout -
0.3V
-Vin
-Vout
-Vin
-Vout
I-4
REV: 1/2009
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INNOLINE
DC/DC-Converter
Application Examples
High efficiency, isolated, dual unregulated outputs
DC/DC Converter ( 1:1 )
+Vin
R-78xx-0.5
Series
R-78xx-0.5
+Vout
Com
C1
-Vin
C1 , C2 : optional
C2
- Isolated dual outputs
- Wide input range 4.75V to 34V
-Vout
Isolated (up to 6KV), wide Input range regulated output
DC/DC Converter ( 1:1 )
+Vin
R-78xx-0.5
C1
C2
- High isolation voltage
- Improved loading / line regulation
- Wide Input Voltage Range
- Point-of-Load Architecture
+Vout
-Vin
-Vout
C1 , C2 : optional
R-78-0.5
Package Style and Pinning (mm)
SIP3 PIN Package
3rd angle
projection
7.55
10.2
RECOM
R-785.0-0.5
0.51 typ.
****
Pb
RECOM
R-785.0-0.5
****
Pb
4.10
0.7 typ.
1 2 3
Recommended Footprint Details
11.50
0.25
Bottom View
Pin Connections
Pin #
1
+Vin
2
GND
3
+Vout
xx.x ±0.5mm
xx.xx ±0.25mm
1.00 ø+0.15/0
2.54
2.0
Top View
3.21
5.08
2.54
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REV:1/2009
I-5
PCB设计
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