RECOM R-781.8-0.5

Features
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INNOLINE
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
between 1.5V ~15V
Low ripple and noise
RoHS Compatible
DC/DC-Converter
R-78xx-0.5
Series
0.5 AMP
SIP3
Single Output
Selection Guide
Part
Number
SIP3
Input
Range (1)
(V)
Output
Voltage
(V)
Output
Current
(A)
Efficiency (%)
Min. Vin
Max. Vin
R-781.5-0.5
4.75 – 30
1.5
0.5
73
63
R-781.8-0.5
4.75 – 34
1.8
0.5
82
71
R-782.5-0.5
4.75 – 34
2.5
0.5
87
77
R-783.3-0.5
4.75 – 34
3.3
0.5
91
81
R-785.0-0.5
6.5 – 34
5.0
0.5
94
86
R-786.5-0.5
8.0 – 34
6.5
0.5
95
88
R-789.0-0.5
11 – 34
9.0
0.5
96
92
R-7812-0.5
15 – 34
12
0.5
97
94
R-7815-0.5
18 – 34
15
0.5
97
95
Derating-Graph
(Ambient Temperature)
Note 1:1.5V Output can be unstable with Vin>30VDC
Output Power (%)
120
100
80
60
40
20
0
Safe Operating Area
-40
0
25
50
Operating Temperature (°C)
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31-Oct-2005
85
75
100
71
1
R-78xx-0.5
Series
INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C)
Characteristics
Input Voltage Range
Conditions
1.5V
1.8V to 15.5V
Min.
4.75
4.75
Typ.
Max.
34.0V
30.0V
Output Voltage Range
All Series
1.5
15.5V
Output Current
All Series
50
500mA
Output Current Limit
All Series
Short Circuit Input Current
All Series
2000mA
10
Internal Power Dissipation
30mA
0.4W
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
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
±2
0.2
0.1
0.4
0.25
±75mV
20mVp-p
30mVp-p
15mVp-p
25mVp-p
-40°C ~ +85°C ambient
±3%
0.4%
0.2%
0.6%
0.4%
±100mV
30mVp-p
40mVp-p
20mVp-p
35mVp-p
0.015%/°C
Max capacitance Load
220µF
Switching Frequency
280
Quiescent Current
330
Vin = min. to max. at 0% load
Operating Temperature Range
5
-40°C
380kHz
7mA
+85°C
Operating Case Temperature
+100°C
Storage Temperature Range
-55°C
+125°C
Case Thermal Impendance
70°C / W
Thermal Shutdown
MTBF (+25°C)
.
(+71°C)
Internal IC junction
using MIL-HDBK 217F
+160°C
21,098 x 10³ hours
4,212.x 10³ hours
Standard Application Circuit
+Vin
+Vout
R-78xx-0.5
C1
C2
47µF
100µF
(Optional)
1ms
-Vin
-Vout
To protect the converter during power-up, use soft start Vin and C1=47µF
2
31-Oct-2005
www.recom-international.com
R-78xx-0.5
Series
INNOLINE
DC/DC-Converter
Characteristics
Ripple
Efficiency
100
Vo=12V,15 V
Vo=9V
Vo=5V
Vo=3.3V
Vo=1.8V
Vo=1.5V
50
50
Vo=12V
Vo=15V
Vo=9V
Vo=5V
Vo=3.3V
Ripple (mV)
Efficiency (%)
25
10
Vin (V)
20
Vo=1.8V
Vo=1.5V
30 34
10
Vin (V)
Efficiency Vs Vin (Full Load)
30 34
20
Ripple Vs Vin (full load)
100
50
Vo=15V
Vo=12V
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
Efficiency (%)
Ripple (mV)
25
0.1
0.2
0.3
0.4
0.5
0.6
0.1
Output Current ( A )
0.2
0.3
0.4
0.5
0.6
Output Current ( A )
Efficiency Vs Load ( Vin=Max )
Ripple Vs Load ( Vin=24V )
100
50
Vo=12V,15V
Vo=5V
Vo=3.3V
Vo=1.8V
Vo=1.5V
25
Vo=15V
Vo=12V
Vo=1.8V
Vo=3.3, 9V
Vo=5V
Vo=1.5V
Ripple (mV)
Efficiency (%)
50
0.1
0.2
0.3
0.4
0.5
0.1
0.6
0.3
0.4
0.5
0.6
Ripple Vs Load ( Vin=Min )
Efficiency Vs Load ( Vin=Min )
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0.2
Output Current ( A )
Output Current ( A )
31-Oct-2005
3
R-78xx-0.5
Series
INNOLINE
DC/DC-Converter
Application Examples
High efficiency, isolated, dual unregulated outputs
DC/DC Converter ( 1:1 )
+Vout
R-78xx-0.5
+Vin
Com
C1
-Vout
C2
- Isolated dual outputs
-Vin
- Wide input range 4.75V to 34V
C1 , C2 : optional
Isolated (up to 6KV), wide Input range regulated output
DC/DC Converter ( 1:1 )
+Vin
R-78xx-0.5
+Vout
C1
-Vin
C2
- High isolation voltage
- Improved loading / line regulation
- Wide Input Voltage Range
- Point-of-Load Architecture
-Vout
C1 , C2 : optional
Package Style and Pinning (mm)
SIP3 PIN Package
3rd angle
projection
7.55
10.2
RECOM
R-785.0-0.5
**** Pb
RECOM
R-785.0-0.5
0.51 typ.
**** Pb
1 2 3
0.7 typ.
4.10
Pin Connections
1.00 ø+0.15/–0
11.50
0.25
Bottom View
3.21
4
5.08
2.54
2.0
Top View
2.54
31-Oct-2005
Pin #
1
2
3
xx.x ±0.5mm
xx.xx ±0.25mm
+Vin
GND
+Vout
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