TPS5430DDAR 3 A, 500 kHz Buck Switching Regulator IC – SOP-8
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Prices updated: 14 Oct 2026
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About this product
The TPS5430DDAR is a 3 A step-down (buck) switching regulator IC with a 500 kHz switching frequency, housed in an SOP-8 package. It converts a higher input voltage to a lower adjustable output to power microcontrollers, sensors and other electronics. It requires an external inductor, catch diode and capacitors.
Specifications
- Regulator type
- Buck (step-down) switching regulator / منظم تبديل خافض (Buck)
- Output current
- 3 A / 3 أمبير
- Switching frequency
- 500 kHz / 500 كيلوهرتز
- Input voltage range
- 5.5 V to 36 V / من 5.5 إلى 36 فولت
- Package
- SOP-8
Frequently asked questions
How do I set the output voltage of the TPS5430?
Use a resistor divider from the output to the VSENSE feedback pin. The internal reference is about 1.22 V, so the divider ratio sets the output voltage. Follow the datasheet formula for the exact resistor values.
Does the TPS5430 work without external components?
No. A buck regulator needs an external inductor, a catch diode, and input and output capacitors, plus the feedback divider for a chosen output voltage.
