Recom R-78K5.0-1.0 Handleiding
Recom
Audio/video-converter
R-78K5.0-1.0
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www.recom-power.com REV.: 0/2023 I-1
R-78K-1.0
DC/DC Converter
1.0 Amp
SIP3
Single Output
Description
The R-78K-1.0 series is a switching regulator module that has been designed to offer all the advantages
of a switching regulator (high efficiency, wide input range, accurate output voltage regulation) but with
a low cost for production quantities. Due to the R-78K-1.0’s high efficiency of up to 95% no heat-sink
is required, and operation from -40 to 90°C is possible with slight derating. The compact TO-220
compatible SIP3 package measures only 11.5 x 7.55 x 10.2mm, so it saves precious board space.
ABSOLUTE MAX RATINGS (exceeding these ratings may damage the device)
Parameter Condition Min. Typ. Max.
Maximum Input Voltage Slew Rate
(1)
+V
IN
to GND 10VDC/µs
Case Temperature
-40°C 110°C
Storage Temperature
-50°C 125°C
Features
Switching
Regulator
• Efficiency up to 95%, no need for heatsinks
• 4.5 - 36VDC wide input voltage
• -40°C to +90°C ambient operation without
derating
• Pin compatible with 78 series regulators
• Non isolated DC/DC converter
• Undervoltage and short circuit protection
R
E
C
O
M
C
O
N
V
E
R
T
E
R
S
C
O
M
P
L
I
A
N
T
P
R
O
D
U
C
T
S
RoHS
2
+
compliant
10 from 10
R
E
C
O
M
C
O
N
V
E
R
T
E
R
S
C
O
M
P
L
I
A
N
T
P
R
O
D
U
C
T
S
REACH
compliant
IEC/EN62368-1 3rd Edition certified
EN55032 compliant
CB-Report
Notes:
Note1: At higher slew rates or hard plugging, add 27µF E-Cap between +Vin and GND,
especially when Vin is >18VDC
Model Numbering
Specifications
Output Current
Output Voltage
R-78K -
Selection Guide
Part
Number
Input
Voltage Range
[VDC]
Output
Voltage
[VDC]
Output
Current
[mA]
Efficiency
@ min. Vin
[%]
@ max. Vin
[%]
R-78K1.8-1.0 4.5 - 36 1.8 1000 83 71
R-78K2.5-1.0 4.5 - 36 2.5 1000 85 75
R-78K3.3-1.0 4.5 - 36 3.3 1000 88 79
R-78K5.0-1.0 6.5 - 36 5 1000 92 85
R-78K9.0-1.0 12 - 36 9 1000 93 89
R-78K12-1.0 15 - 36 12 1000 95 91
R-78K15-1.0 18 - 36 15 1000 94 91
www.recom-power.com REV.: 0/2023 I-2
Specifications (measured @ Ta= -40°C to +90°C, V
IN
= 24VDC, full load and after warm-up unless otherwise stated)
R-78K-1.0
Series
DC/DC Converter
BASIC CHARACTERISTICS
Parameter Condition Min. Typ. Max.
Input Under Voltage Lockout (UVLO)
R-78K1.8-1.0, R-78K2.5-1.0,
R-78K3.3-1.0
DC-DC ON
3.75VDC 4.05VDC
DC-DC OFF
3.6VDC 3.8VDC
R-78K5.0-1.0
DC-DC ON
5VDC 5.25VDC
DC-DC OFF
4.6VDC 4.9VDC
R-78K9.0-1.0
DC-DC ON
9.5VDC 10.5VDC
DC-DC OFF
9.1VDC 9.7VDC
R-78K12-1.0
DC-DC ON
13.0VDC 13.5VDC
DC-DC OFF
12.5VDC 13.1VDC
R-78K15-1.0
DC-DC ON 16.9VDC 17.5VDC
DC-DC OFF 15.6VDC 16.6VDC
Quiescent Current
1mA
Internal Switching Frequency
400kHz
Minimum Load 0%
Output Ripple and Noise 20MHz BW
R-78K1.8-1.0 - R-78K5.0-1.0 50mVp-p
R-78K9.0-1.0 60mVp-p
R-78K12-1.0 75mVp-p
R-78K15-1.0 100mVp-p
continued on next page
Efficiency vs. Load
R-78K1.8-1.0
Power Dissipation vs. Load
0 10 20 30 40 50 60 70 80 90 100
100
80
60
40
90
70
50
30
20
10
0
Efficiency [%]
Output Load [%]
4.5VDC
12VDC
24VDC
36VDC
0.8
0.6
0.4
0.2
0.7
0.5
0.3
0.1
0
Power Dissipation [W]
0 10 20 30 40 50 60 70 80 90 100
Output Load [%]
4.5VDC
12VDC
24VDC
36VDC
Product specificaties
| Merk: | Recom |
| Categorie: | Audio/video-converter |
| Model: | R-78K5.0-1.0 |
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