R-78C3.3-1.0

• 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 Features Switching Regulator 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 1.0 Amp SIP3 Single Output 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 Model Numbering R-78C__-1.0 Output Voltage Output Current IEC60950-1 certified EN60950-1 certified EN55032 compliant Specifications (measured at Ta= 25°C, minimum load, otherwise specified) BASIC CHARACTERISTICS Parameter Condition Min. Input Voltage Range Output Voltage Range 1.8VDC 15VDC Quiescent Current 1mA Internal Operating Frequency Max. Capacitive Load Max. 42VDC 0% Minimum Load (1) Output Ripple and Noise (2) Typ. Vout +3V 280kHz 20MHz BW Vin= 24VDC Vout=1.8-15 full load with normal start-up time, no external components with