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R-78B6.5-1.5L Datasheet Preview

R-78B6.5-1.5L Datasheet

DC/DC-Converter

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Features
Switching
Regulator
• Efficiency up to 95%, no heatsinks required
• Pin compatible with LM78XX linears
• Low profile (L/W/H=11.5 x 8.5 x 17.5mm)
• Wide input range
• Short circuit protection, thermal shutdown
• Low ripple and noise
• „L“ version with 90° pins
DC/DC Converter
R-78B-1.5(L)
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.
1.5 Amp
SIP3
Single Output
Selection Guide
Part
Number
Input
Voltage Range
[VDC]
Output
Voltage
[VDC]
Output Efficiency
Current
@ min Vin @ max. Vin
[A]
[%] [%]
R-78B1.5-1.5 (1)
4.75 - 18
1.5
1.5
83 78
R-78B1.8-1.5 (1)
4.75 - 18
1.8
1.5
85 81
R-78B2.5-1.5 (1) 4.75 - 18
2.5
1.5
88 84
R-78B3.3-1.5 (1)
4.75 - 18 3.3 1.5
91 88
R-78B5.0-1.5 (1)
6.5 - 18 5.0 1.5
94 92
R-78B6.5-1.5 (1)
8.0 - 18 6.5 1.5
95 93
Model Numbering
R-78B__-1.5(L)
Output Voltage
Pinning
Output Current
Notes:
Note1: add suffix “L” for 90° bent pins, e.g. R-78B5.0-1.5L
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Condition
Quiescent Current
nom. Vin= 12VDC
Internal Power Dissipation
Vout= 1.5VDC
Internal Operating Frequency
nom. Vin= 12VDC
Minimum Load (2)
Output Ripple and Noise (3)
20MHz BW
Ref. Back Ripple Current
Absolute Maximum
Capacitive Load
1 second start up, no external components
<1 second start up + diode protection circuit
Min. Typ. Max.
7mA 9mA
0.65W
300kHz 340kHz 380kHz
0%
15mVp-p 30mVp-p
150mAp-p 200mAp-p
1000µF
6800µF
Notes:
Note2: Operation under no load will not harm the converter, but specifications may not be met
A minimum load of 10mA is recommended
Note3: Output Ripple and Noise is tested from 10% to 100% load
continued on next page
EN55032 compliant
IEC/EN60950-1 certified
www.recom-power.com
REV.: 4/2019
I-1




Recom

R-78B6.5-1.5L Datasheet Preview

R-78B6.5-1.5L Datasheet

DC/DC-Converter

No Preview Available !

R-78Bxx-1.5(L)
DC/DC Converter
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
Series
Efficiency vs. Vin (full load)
100
90
80
70
60
50
40
30
20
10
0
4.75 7
9 11 13
Input Voltage [VDC]
6.5Vout
5Vout
3.3Vout
2.5Vout
1.8Vout
1.5Vout
15 17 18
Ripple vs. Vin (full load)
50
45
40
35
30
25
20
15
10
5
0
4.75 7 9 11 13
Input Voltage [VDC]
6.5Vout
5Vout
3.3Vout
2.5Vout
1.8Vout
1.5Vout
15 17 18
Efficiency vs. Load (max. Vin)
100
90
80
70
60
50
40
30
20
10
0
0
6.5Vout
5Vout
3.3Vout
2.5Vout
1.8Vout
1.5Vout
10 20 30 40 50 60 70 80 90 100
Output Load [%]
Ripple vs. Load (max. Vin)
50 6.5Vout
45
5Vout
3.3Vout
40 2.5Vout
35
1.8Vout
1.5Vout
30
25
20
15
10
5
0
0 10 20 30 40 50 60 70 80 90 100
Output Load [%]
Efficiency vs. Load (min. Vin)
100
90
80
70
60
50
40
30
20
10
0
0
6.5Vout
5Vout
3.3Vout
2.5Vout
1.8Vout
1.5Vout
10 20 30 40 50 60 70 80 90 100
Output Load [%]
Ripple vs. Load (min. Vin)
50 6.5Vout
45
5Vout
3.3, 2.5Vout
40 1.8, 1.5Vout
35
30
25
20
15
10
5
0
0 10 20 30 40 50 60 70 80 90 100
Output Load [%]
www.recom-power.com
REV.: 4/2019
I-2


Part Number R-78B6.5-1.5L
Description DC/DC-Converter
Maker Recom
Total Page 6 Pages
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