INNOLINE
R-78Bxx-1.0
(L) Series
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%)
Characteristics
Input Voltage Range
Conditions
1.5V, 1.8V
2.5V to 15.5V
Min.
4.75
4.75
Typ.
Max.
26.0V
34.0V
Output Voltage Range (for customized parts)
Output Current (see Note 2)
Output Current Limit
All Series
All Series
All Series
All Series
1.5
0
15.5V
1000mA
2000mA
30mA
Short Circuit Input Current
Internal Power Dissipation
Short Circuit Protection
10
0.65W
Continuous, automatic recovery
Output Voltage Accuracy (At 100% Load)
Line Voltage Regulation (Vin = min. to max. at full load)
All Series
1.5V to 6.5V
2
0.2
3%
0.4%
9V to 15.5V
0.1
0.2%
Load Regulation (10% to 100% full load)
1.5V to 6.5V
0.4
0.6%
9V to 15.5V
0.25
0.4%
Dynamic Load Stability (with Output Capacitor=100µF)
100% <-> 50% load
Transient Recovery Time
1.5V to 6.5V
100mV
1.0
15mVp-p
25mVp-p
150mV
1.5ms
20mVp-p
35mVp-p
Ripple & Noise (without Output Capacitor)
(10% to 100% full load)
9V to 15.5V
Temperature Coefficient
Max capacitance Load
Switching Frequency
-40°C ~ +85°C ambient
0.015%/°C
220µF
280
330
5
380kHz
7mA
Quiescent Current
Vin = min. to max. at 0% load
All Series
Input Reflected Ripple Current
Operating Temperature Range
Operating Case Temperature
Storage Temperature Range
Case Thermal Impendance
Thermal Shutdown
150
200mAp-p
+85°C
-40°C
-55°C
+100°C
+125°C
60°C / W
Internal IC junction
+160°C
Relative Humidity
95% RH
6584 x 10³ hours
1139 x 10³ hours
MTBF (+25°C)
using MIL-HDBK 217F
using MIL-HDBK 217F
Detailed Information see
Application Notes chapter "MTBF"
}
.
(+71°C)
Note 2: Converter requires a minimum load of 6mA to start up properly. Once started, the load can be reduced to 0%.
Standard Application Circuit
+Vout
+Vin
R-78Bxx-1.0
Add a blocking diode to
Vout if current can flow
backwards into the out-
put, as this can damage
the converter..
C1
C2
22µF
(Vin>30V)
100µF
(Option)
-Vin
-Vout
To protect the converter during power-up, use C1=22µF if Vin>30V
2
13-February-2007
www.recom-international.com
RECOM [ RECOM INTERNATIONAL POWER ]
