DC/DC Converter
K78xx-500R3 Series
Wide input voltage , non-isolated & regulated single output
FEATURES
High efficie...
DC/DC Converter
K78xx-500R3 Series
Wide input
voltage , non-isolated & regulated single output
FEATURES
High efficiency up to 95% No-load input current as low as 0.2mA Operating temperature range: -40℃ to +85℃ Support the negative output Output short circuit protection Pin-out compatible with LM78XX linear regulators UL60950,EN60950 approval
RoHS
K78xx-500R3 series are high efficiency switching regulators and ideal substitutes of LM78xx series three-terminal linear regulators. The product is featured with high efficiency, low loss, short circuit protection , support the negative output and no heat sink requirement. They are widely used in industrial control, instrumentation, and electric power applications.
Selection Guide
Certification UL/CE
Part Number K7803-500R3 K7805-500R3 K7809-500R3 K7812-500R3
K7815-500R3
Input
Voltage (VDC)
Nominal (Range)
24 (4.75-36)
24 (6.5-36)
12 (7-31)
24 (12-36)
24 (15-36)
12 (8-24)
24 (19-36)
12 (8-21)
Output
Output
Voltage (VDC)
Max. Output Current (mA)
3.3 500
5.0 500
-5.0 -300
9 500
12 500
-12 -150
15 500
-15 -150
Note:For input
voltage higher than 30 VDC, a 22uF/50V input capacitor is required.
Efficiency (%/Typ.) (Min. Vin)/ (Max. Vin)
@Full Load 86/80
90/84
80/81
93/90
94/91
84/85
95/93
85/87
Max. Capacitive
Load(µF) 680 680
330
680
680
330
680
330
Input Specifications
Item No-load Input Current Reverse Polarity Input Input Filter
Operating Conditions Positive output
Min. Typ. Max. Unit -- 0.2 1.5 mA...