INNOLINE
DC/DC-Converter
with year Warranty
R-78B-1.5
1.5 AMP
SIP3
Single Output
● 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
● Low ripple and noise
● “L” Version with 90° pins
Features
Selection Guide
Part Input Output Output Efficiency
Number* Range Voltage Current Min. Vin Max. Vin
SIP3 (V) (V) (A) (%) (%)
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
Derating-Graph
(Ambient Temperature)
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.
Description
* add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.5L
EN-55022 Certified
EN-55024 Certified
IEC/EN-60950-1 Certified
RoHS
2011/65/EU
6/6
Specifications
(refer to the standard application circuit, Ta: 25°C, minimum load = 10 %)
Characteristics Conditions Min. Typ. Max.
Input Voltage Range All Series, see Selection Guide 4.75V 18.0V
Output Voltage Range (for customized parts) All Series 1.5V 6.5V
Output Current All Series 0mA* 1500mA
Short Circuit Input Current (Vin = 12V) All Series 100mA
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) All Series 0.3% 0.5%
Load Regulation (10% to 100% full load) All Series 0.6% 0.8%
Dynamic Load Stability
(with Output Capacitor=100µF) 100% <-> 50% load ±80mV ±120mV
Transient Recovery Time 1.0ms 1.5ms
Ripple & Noise (10% to 100% full load) All Series 15mV 30mVp-p
Temperature Coefficient -40°C ~ +85°C ambient 0.015%/°C
Max capacitance Load with normal start-up time, no external components 1000µF
with <1 second start up time + diode protection circuit 6800µF
Switching Frequency 300kHz 340kHz 380kHz
continued on next page
www.recom-power.com I-25REV: 1/2016
