Switching Regulator K78xx-500R3 Series

SKU: K78xx-500R3 Categories: , , Manufacturer:

Product specs

Weight 1.8 g
Dimensions 11.6 × 7.55 × 10.16 mm

3.3V, 5V, 9V, 12V, 15V

Input Range

4.75-36Vdc, 6.5-36Vdc, 12-36Vdc, 15-36Vdc, 19-36Vdc



Min-Max Tamb (°C)

-40°C, +85°C

Product Description

K78xx-500R3 series are high efficiency switching regulators and ideal substitutes for LM78xx series three-terminal linear regulators. The converters feature high efficiency, low loss, short circuit protection, positive or negative output voltage, and there is no need for a heat sink. These products are widely used in applications such as industrial control, instrumentation and electric power.

Note: * For input voltages exceeding 30 VDC, an input capacitor of 22µF/50V is required.

  • High efficiency up to 95% 
  • No-load input current as low as 0.2mA 
  • Operating ambient temperature range: -40℃ to +85℃ 
  • Support the negative output 
  • Output short-circuit protection 
  • Pin-out compatible with LM78XX linear regulators 
  • IEC60950, UL60950, EN60950 approved