Overview: TPS53433 6A Synchronous Step-Down Converter by Texas Instruments
The TPS53433 is a versatile step-down converter from Texas Instruments, engineered to deliver high-efficiency power conversion in space-constrained systems. With integrated high-side and low-side FETs, the device minimizes external components and supports a wide input range of 4.5V to 18V. Its compact QFN-20 package makes it ideal for high-performance, dense PCB layouts where thermal efficiency and footprint are critical.
Designed for powering high-performance processors, ASICs, and FPGAs, the converter supports up to 6A of continuous current and operates with switching frequencies adjustable from 200kHz to 1MHz. It includes built-in protection features such as overcurrent, overtemperature, and undervoltage lockout to ensure safe operation.
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Electrical Specifications for TPS53433
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.5V ?C 18V |
| Output Current | Up to 6A |
| Output Voltage | 0.6V to 5.5V |
| Switching Frequency | 200kHz ?C 1MHz (adjustable) |
| Efficiency | >90% |
| Package | QFN-20 |
| Protections | OCP, OTP, UVLO |
Advantages Compared to Typical Alternatives
Many traditional converters require bulky external components and lack integrated thermal optimization. The TPS53433 provides a fully integrated synchronous buck topology that simplifies board layout, reduces BOM cost, and enhances EMI performance. With IC Manufacturer supplying this solution, engineers are assured a reliable, space-saving converter ideal for next-generation system designs.
Its adjustable frequency and integrated protection features give it a performance edge over discrete or older-generation regulators, especially in applications where thermal stress and board real estate are design constraints.
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Extended Features Table
| Feature | Details |
|---|---|
| Control Mode | Voltage-Mode |
| Sync Clock Input | Yes |
| Temperature Range | -40??C to 85??C |
| Integrated FETs | Yes, High-side and Low-side |
| Startup Features | Soft Start |
| Output Type | Adjustable |
Common Applications of TPS53433
- High-performance embedded systems
- Data center boards and network infrastructure
- Industrial automation controllers
Frequently Asked Questions (FAQ)
What makes the TPS53433 suitable for high-efficiency designs?
With integrated MOSFETs and low-loss switching paths, the device achieves over 90% efficiency under typical loads, minimizing power waste and thermal stress.
Is the device suitable for compact PCB layouts?
Yes. The QFN-20 package helps conserve board space and simplifies thermal management in dense system designs, making it ideal for modern compact electronics.
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Can the TPS53433 be synchronized with an external clock?
Yes, the device includes support for external clock synchronization, enabling better control of noise and EMI in multi-rail systems or synchronized architectures.
Does it offer enough protection for sensitive applications?
It includes robust features like overcurrent protection (OCP), overtemperature protection (OTP), and undervoltage lockout (UVLO), ensuring secure operation across load and thermal conditions.
Where can I source this component with confidence?
You can purchase it through IC Manufacturer, which ensures authenticity and traceable supply chain management for Texas Instruments components.
