Recom R-78B1.8-1.0 Manual

Recom Audio/video konverter R-78B1.8-1.0

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Side 1/7
www.recom-power.com REV.: 4/2019 I-1
Features
Switching
Regulator
• Efficiency up to 97%, 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
• Positive to negative converter
R-78B-1.0(L)
Description
The R-78Bxx-1.0 series high efficiency switching regulators are ideally suited to replace 78xx
linear regulators and are pin compatible. The efficiency of up to 97% 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.
DC/DC Converter
1.0 Amp
SIP3
Single Output
EN55032 compliant
IEC/EN60950-1 certified
BASIC CHARACTERISTICS
Parameter Condition Min. Max.Typ.
Absolute Maximum Input
Voltage
1.5Vout , 1.8Vout
2.5Vout to 15Vout
26VDC
34VDC
Quiescent Current nom. Vin= 24VDC 5mA 7mA
Internal Power Dissipation Vout= 1.5VDC 0.65W
Internal Operating Frequency
nom. Vin= 24VDC 280kHz 330kHz 380kHz
Minimum Load (2) 0%
Output Ripple and Noise (3) 20MHz BW 1.5Vout to 6.5Vout
9Vout to 15Vout
15mVp-p
25mVp-p
20mVp-p
35mVp-p
Ref. Back Ripple Current 150mA
200mAp-p
Absolute Maximum
Capacitive Load
1 second start up, no external components
<1 second start up + diode protection circuit
470µF
6800µF
continued on next page
Selection Guide
Part Input Output Output Efficiency
Number Voltage Range Voltage Current @ min Vin @ max. Vin
[VDC] [VDC] [A] [%] [%]
R-78B1.5-1.0 (1) 4.75 - 26 1.5 1.0 77 71
R-78B1.8-1.0 (1) 4.75 - 26 1.8 1.0 80 74
R-78B2.5-1.0 (1) 4.75 - 32 2.5 1.0 85 78
R-78B3.3-1.0 (1) 4.75 - 32 3.3 1.0 89 83
R-78B5.0-1.0 (1) 6.5 - 32 5.0 1.0 93 88
R-78B6.5-1.0 (1) 9.0 - 32 6.5 1.0 94 90
R-78B9.0-1.0 (1) 12 - 32 9.0 1.0 95 93
R-78B12-1.0 (1) 16 - 32 12 1.0 96 95
R-78B15-1.0 (1) 20 - 32 15 1.0 97 96
Notes:
Note1: add suffix “L” for 90° bent pins, e.g. R-78B5.0-1.0L
Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated)
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
Model Numbering
Output Voltage Pinning
Output Current
R-78B__-1.0(L)

Produkt Specifikationer

Mærke: Recom
Kategori: Audio/video konverter
Model: R-78B1.8-1.0

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