R-78B-1.5 Datasheet, PDF (1/4 Pages) Recom International Power – 1.5 AMP SIP3 Single Output

Features
● 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
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.
INNOLINE
DC/DC-Converter
with year Warranty
1.5 AMP
SIP3
Single Output
Selection Guide
Part
Number*
SIP3
R-78B1.5-1.5
R-78B1.8-1.5
R-78B2.5-1.5
R-78B3.3-1.5
R-78B5.0-1.5
R-78B6.5-1.5
Input
Range
(V)
4.75 – 18
4.75 – 18
4.75 – 18
4.75 – 18
6.5 – 18
8.0 – 18
Output
Voltage
(V)
1.5
1.8
2.5
3.3
5.0
6.5
* add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.5L
Output
Current
(A)
1.5
1.5
1.5
1.5
1.5
1.5
Efficiency
Min. Vin Max. Vin
(%)
(%)
83
78
85
81
88
84
91
88
94
92
95
93
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
RoHS
2011/65/EU
6/6
EN-55022 Certified
EN-55024 Certified
IEC/EN-60950-1 Certified
R-78B-1.5
Derating-Graph
(Ambient Temperature)
120
100
80
60
40
Safe Operating Area
20
0
-40
0
25 50
7585 100
71
Operating Temperature (°C)
www.recom-power.com
REV: 0/2015
Refer to Application Notes
I-25