RECOM R-78B6.5-1.5

Features
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INNOLINE
Efficiency up to 95%,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 ~ 18V)
Short circuit protection, Thermal shutdown
Non standard outputs available as specials
between 1.5V ~ 6.5V
Low ripple and noise
“L” Version with 90° pins
DC/DC-Converter
R-78Bxx1.5(L)
Series
1.5 AMP
SIP3
Single Output
Selection Guide
Part
Number*
SIP3
Input
Range
(V)
Output
Voltage
(V)
Output
Current
(A)
Efficiency
Min. Vin
Max. Vin
(%)
(%)
R-78B1.5-1.5
4.75 – 18
1.5
1.5
83
78
R-78B1.8-1.5
4.75 – 18
1.8
1.5
85
81
R-78B2.5-1.5
4.75 – 18
2.5
1.5
88
84
R-78B3.3-1.5
4.75 – 18
3.3
1.5
91
88
R-78B5.0-1.5
6.5 – 18
5.0
1.5
94
92
R-78B6.5-1.5
8.0 – 18
6.5
1.5
95
93
* add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.5L
Description
The R-78Bxx-1.5 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 95% 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.
Derating-Graph
(Ambient Temperature)
Output Power (%)
120
100
80
60
40
20
0
Safe Operating Area
-40
0
25
50
Operating Temperature (°C)
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13-February-2007
85
75
100
71
1
R-78Bxx-1.5
(L) Series
INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%)
Characteristics
Input Voltage Range
Conditions
All Series, see Selection Guide
Min.
4.75
Output Voltage Range (for customized parts)
All Series
1.5
Output Current (see Note 1)
All Series
0
Output Current Limit
All Series
Short Circuit Input Current
All Series
Typ.
6.5V
1500mA
5000mA
60
80mA
Internal Power Dissipation
0.65W
Short Circuit Protection
Continuous, automatic recovery
Output Voltage Accuracy (At 100% Load)
Line Voltage Reguölation (Vin = min. to max. at full load)
Load Regulation (10% to 100% full load)
Dynamic Load Stability (with Output Capacitor=100µF)
All Series
All Series
All Series
100% <-> 50% load
Transient Recovery Time
Ripple & Noise (10% to 100% full load)
All Series
Temperature Coefficient
-40°C ~ +85°C ambient
±2
0.2
20
±80
1.0
±3%
0.4%
25mV
±120mV
1.5ms
15
30mVp-p
0.015%/°C
Max capacitance Load
1000µF
Switching Frequency
300
Quiescent Current
Vin = min. to max. at 0% load
Input Reflected Ripple Current
All Series
Operating Temperature Range
340
7
150
-40°C
+85°C
-55°C
+125°C
Case Thermal Impendance
60°C / W
Thermal Shutdown
Internal IC junction
+160°C
Relative Humidity
95% RH
Case Material
Epoxy with Non-Conductive Plastic Case(UL94V-0)
Package Weight
(+71°C)
200mAp-p
+100°C
Storage Temperature Range
.
380kHz
9mA
Operating Case Temperature
MTBF (+25°C)
Max.
18.0V
4g
}
Detailed Information see
Application Notes chapter "MTBF"
using MIL-HDBK 217F
3250 x 10³ hours
using MIL-HDBK 217F
1059 x 10³ hours
Note 1: The converter requires a minimum load of 6mA to start up properly. Once started, the load can be reduced to 0%
Standard Application Circuit
+Vin
+Vout
R-78Bxx-1.5
Add a blocking diode to
Vout if current can flow
backwards into the output, as this can damage
the converter.
C1
100µF
(Option)
-Vin
2
-Vout
13-February-2007
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R-78Bxx-1.5
(L) Series
INNOLINE
DC/DC-Converter
Characteristics
Ripple
Efficiency
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=1.8V
Vo=2.5V
Vo=1.5V
75
50
Ripple (mV)
100
Efficiency (%)
50
25
5
10
15
15
18
Vin ( V )
Ripple Vs Vin (Full Load)
Efficiency Vs Vin (Full Load)
50
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
100
75
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
25
Ripple (mV)
50
Efficiency (%)
10
5
18
Vin ( V )
25
0.5
1.0
0.5
1.5
1.0
1.5
Output Current ( A )
Output Current ( A )
Ripple Vs Load ( Vin=Max )
Efficiency Vs Load ( Vin=Max )
100
50
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
75
25
Vo=6.5V
Vo=5V
Vo=2.5,V, 3.3V
Vo=1.5V, 1.8V
Ripple (mV)
50
Efficiency (%)
Vo=6.5V
Vo=5V
Vo=3.3V
Vo=2.5V
Vo=1.8V
Vo=1.5V
25
25
0.5
1.0
0.5
1.5
1.5
Ripple Vs Load ( Vin=Min )
Efficiency Vs Load ( Vin=Min )
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1.0
Output Current ( A )
Output Current ( A )
13-February-2007
3
R-78Bxx-1.5
(L) Series
INNOLINE
DC/DC-Converter
Application Examples
High efficiency multiple output
R-78B5.0-1.5
+Vin
[email protected]
R05P215D/P
[email protected]
22µF
0V Isolated
Common
-Vin
[email protected]
- Wide input range suits both 12V and 7.2V battery packs
- 5.2kV isolated short circuit protected outputs for analogue circuits, e.g. medical grade interface
- High efficiency +5V/1A protected output for digital circuits
- Further decoupling filtering may be necessary between the converters
+5V Rtn
Isolated, wide Input range, Distributed Power Architecture (Point of Load)
REC10-4805SRWZ/H
[email protected]
+Vin
R-78B3.3-1.5
[email protected]
C1
-Vin
C2
- 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-78B1.8-1.5
[email protected]
C3
0V
Package Style and Pinning (mm)
3rd angle
projection
SIP3 PIN Package
8.50
8.50
17.5
RECOM
R-78B5.0-1.5
****
Pb
RECOM
R-78B5.0-1.5
****
0.51 typ.
1.50 max
0.7 typ.
4.10
Pb
4.10
Recommended Footprint Details
1.00 ø+0.15/–0
11.50
3.21
4
2.54
Bottom View
0.25
1 2 3
L - Version
5.08
2.0
Top View
Pin Connections
Pin #
1
+Vin
2
GND
3
+Vout
xx.x ±0.5mm
xx.xx ±0.25mm
2.54
13-February-2007
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