Features
Switching Regulator
• Efficiency up to 96%, no need for heatsinks • Pin-out compatible with LM78XX linears • L...
Features
Switching
Regulator
Efficiency up to 96%, no need for heatsinks Pin-out compatible with LM78XX linears Low profile (L*W*H=11.6*8.5*10.4mm) Wide input range (5V - 42V) Short circuit protection, thermal shutdown Low ripple and noise IEC/EN60950 certified Positive to negative converter
DC/DC Converter
R-78C-1.0
Description
The R-78Cxx-1.0 series switching
regulators are ideally suited to replace 1 Amp 78xx linear
regulators and are pin compatible. Efficiencies of up to 96% means that very little energy is wasted as heat and the high input voltage is a useful feature.
Selection Guide
Part Number
R-78C1.8-1.0 R-78C3.3-1.0 R-78C5.0-1.0 R-78C9.0-1.0 R-78C12-1.0 R-78C15-1.0
Input Voltage Range
[VDC] 5 - 42 7 - 42 8 - 42 12 - 42 15 - 42 18 - 42
Output Voltage [VDC]
1.8 3.3 5 9 12 15
Output Efficiency
Current @ min Vin @ max. Vin
[A]
[%] [%]
1.0
80 71
1.0
89 79
1.0
93 85
1.0
95 90
1.0
96 92
1.0
96 94
1.0 Amp SIP3 Single Output
Model Numbering
R-78C__-1.0
Output Voltage
Output Current
Specifications (measured at Ta= 25°C, minimum load, otherwise specified)
BASIC CHARACTERISTICS
Parameter
Condition
Min. Typ. Max.
Input Voltage Range
Vout +3V
42VDC
Output Voltage Range
1.8VDC
15VDC
Minimum Load (1)
0%
Quiescent Current
1mA
Internal Operating Frequency
280kHz 350kHz 420kHz
Output Ripple and Noise (2) Max. Capacitive Load
20MHz BW
Vin= 24VDC Vout=1.8-15 full load
with normal start-up time, no external co...