Description
The TPS5430DDAR from Texas Instruments is a high-performance, high-output-current Pulse Width Modulation (PWM) converter designed to excel in demanding power management applications. By integrating a low-resistance, high-side N-channel MOSFET, this converter achieves outstanding efficiency levels of up to 95%. Its robust architecture includes a high-precision voltage error amplifier for tight regulation during transients, an internal slow-start circuit to manage inrush current, and advanced voltage feedforward capabilities to ensure superior line regulation.
To streamline your design process, the TPS5430 features an internally compensated feedback loop, drastically reducing the external component count and simplifying board layout. Designed for reliability, it includes comprehensive protection features such as undervoltage lockout, overcurrent limiting, overvoltage protection, and thermal shutdown. Housed in a thermally enhanced 8-pin SOIC PowerPAD package, this device is engineered to deliver stable power even under heavy loads, making it an ideal choice for 24V bus regulation, industrial power supplies, and high-performance embedded systems.
Key Features
- High Output Capability: Delivers up to 3A continuous output current with 4A peak capacity.
- Wide Input Voltage: Supports input rails from 5.5V up to 36V, making it highly versatile for various power sources.
- Integrated Efficiency: Features an integrated 110-mΩ MOSFET switch for high-efficiency operation (up to 95%).
- Internal Compensation: Simplifies designs by minimizing the need for complex external compensation networks.
- Precision Regulation: Output voltage is adjustable down to 1.22V with 1.5% initial accuracy.
- Fixed 500 kHz Switching: Optimized frequency for balanced efficiency and small external filter component size.
- Robust Protection: Fully equipped with overcurrent limiting, overvoltage protection, and thermal shutdown for maximum system safety.
- Thermally Enhanced Package: 8-pin SO PowerPAD package provides excellent heat dissipation for reliable performance up to 125°C.
Applications
- Industrial Power Supplies: Efficient regulation for 24V bus systems and factory automation equipment.
- Consumer Electronics: High-performance power management for sophisticated, high-draw embedded systems.
- Battery-Powered Devices: Efficient step-down conversion for long-duration operation.
- Data Acquisition Systems: Stable voltage rails for sensitive measurement and instrumentation electronics.
Package Includes
- 1 x TPS5430DDAR High-Efficiency Step-Down DC-DC Converter (SO-PowerPAD-8)
Technical Specifications
| Parameter | Specification |
|---|---|
| Device Model | TPS5430DDAR |
| Input Voltage Range | 5.5V to 36V |
| Output Current | 3A Continuous |
| Switching Frequency | 500 kHz |
| Operating Temp | –40°C to +125°C |
| Package/Case | SO-PowerPAD-8 (SMD) |
| Shipping Weight | 0.02 kg |
| Shipping Dimensions | 5 × 3 × 1 cm |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete design guidelines, thermal performance data, and PCB layout recommendations, please refer to the official Texas Instruments TPS5430 datasheet and associated design resources.
