Datasheet

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