Features
● Efficiency up to 96%, Non isolated,
no need for heatsinks
● Pin-out compatible with LM78XX Linears
● Low profile( L*W*H=11.5*8.5*17.5mm)
● High voltage input range, up to 72V
● Short circuit protection, Thermal shutdown
● Non-standard outputs available as specials
between 3.3V~24V
● Low ripple and noise
● ”L” version with 90° pins
● See Innoline Application Notes for use as an
inverter (alternative to LM79xx Linear)
Description
The R-78HBxx-Series high efficiency, high input voltage switching regulators are ideally suited to replace 78xx linear
regulators and are pin compatible. The efficiency of up to 96% 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.
An input voltage range of up to 8:1is unsurpassed by any other converter and allows the full stored energy utilization of
standard and high voltage batteries. The fully protected output is ideal for industrial applications (especially for industry
standard 24VDC bus supplies) and 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 15mA
round off the specifications of this versatile converter series.
Typical applications include telecommunication, automotive, industrial, aerospace and battery powered applications.
Selection Guide
Part
Number
SIP3
R-78HB3.3-0.5
Input
Range
(V)
9 - 72
Output
Voltage
(V)
3.3
R-78HB5.0-0.5
9 - 72
5.0
R-78HB6.5-0.5
9 - 72
6.5
R-78HB9.0-0.5
14 - 72
9.0
R-78HB12-0.5
17 - 72
12
R-78HB15-0.5
20 - 72
15
R-78HB24-0.3
36 - 72
24
* add Suffix “L” for 90° bent pins, e.g. R-78HB5.0-0.5L
Output
Current
(A)
0.5
0.5
0.5
0.5
0.5
0.5
0.3
Efficiency
Vmin. 30V 72V
(%) (%) (%)
82 80 76
87 85 81
91 87 84
92 90 86
94 93 89
95 94 91
96 92
Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%)
Characteristics
Conditions
Min. Typ. Max.
Input Voltage Range
See table
9V 72V 75V max.
Output Voltage Range (for customized parts)
All Series
3.3V 24V
Output Current (see Note 1)
3.3V, 5V, 6.5V, 9V, 12V, 15V 10mA
500mA
24V 6mA 300mA
Short Circuit Input Current
All Series
15mA 25mA
Internal Input Filter
1µF Capacitor
Internal Power Dissipation
0.65W
Short Circuit Protection
Continuous, automatic recovery
Output Voltage Accuracy
At 100% Load
±2% ±3%
Line Voltage Regulation
Vin = min. to max. at full load
0.4% 1%
Load Regulation
10% to 100% full load
0.3% 0.6%
Dynamic Load Stability (with Output Capacitor=100µF) 100% <-> 50% load
±75mV ±100mV
Ripple & Noise (without Output Capacitor)
10% to 100% full load
20mVp-p 60mVp-p
continued on next page
www.recom-power.com
REV: 2/2017
INNOLINE
DC/DC-Converter
with year Warranty
0.5 AMP
SIP3
Single Output
RoHS
2011/65/EU
6/6
EN-55022 Certified
EN-55024 Certified
IEC/EN-60950-1 Certified
R-78HB
Derating-Graph
(Ambient Temperature)
120
100
80
60
40 Safe Operating Area
20
0
-40
0
25 50
7585 100
71
Operating Temperature (°C)
I-29
