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Texas Instruments TPS5430DDAR Wide Input 3A Step-Down Converter
10/14/2026 6:17:53 PM
Texas Instruments TPS5430DDAR Wide Input 3A Step-Down Converter
TPS5430DDAR is a HSOIC-8 packaged buck DC-DC converter manufactured by Texas Instruments. The suffix DDAR means the component is supplied in reel tape packaging for automated SMT assembly. It is a widely used power management IC targeting industrial power supplies, off-board auxiliary power, test and measurement equipment. The device accepts wide input voltage from 5.5V to 36V, delivers up to 3A continuous output current and 4A peak current. Integrated 100mΩ high-side MOSFET enables peak efficiency up to 95%. The switching frequency is fixed at 500kHz, which helps designers use smaller inductors and capacitors to shrink power solution size. Internal compensation network reduces external component count and simplifies PCB layout. The output voltage can be adjusted starting from 1.22V with 1.5% initial reference accuracy. Built-in overcurrent protection and enable pin improve system safety. Operating temperature ranges from -40°C to 125°C, supporting heavy-duty industrial environments. The part is RoHS compliant for global electronic product designs.
| Parameter | Specifications |
|---|---|
| Input Voltage Range | 5.5V ~ 36V |
| Continuous Output Current | 3A |
| Peak Output Current | 4A |
| Switching Frequency | 500kHz |
| Adjustable Output Voltage | 1.22V ~ 31V |
| Package | HSOIC-8 (DDA), DDAR reel |
| Operating Temperature | -40°C ~ +125°C |
| Maximum Efficiency | 95% |
FAQ
A: Internal compensation is integrated. Most standard designs do not need extra compensation components. Only high transient load cases may need minor tuning.
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