Overview
The TPS54291PWPR is a dual-output, fully synchronous buck converter manufactured by Texas Instruments. This IC is designed to provide efficient power conversion with minimal external components, making it ideal for compact and high-performance applications. It operates with an input voltage range of 4.5V to 18V and supports output voltages as low as 0.8V. The TPS54291PWPR is particularly suited for applications requiring dual power rails, such as industrial automation, telecommunications, and consumer electronics. Its market positioning targets engineers and designers seeking reliable, high-efficiency power management solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4.5 to 18 | V | |
| Output Voltage Range | 0.8 to 16.2 | V | |
| Output Current (Channel 1) | 1.5 | A | Continuous |
| Output Current (Channel 2) | 2.5 | A | Continuous |
| Switching Frequency | 600 | kHz | Fixed |
| Operating Temperature | -40 to 85 | °C | |
| Package | 16-HTSSOP | Exposed Pad |
Key Features
- Dual-output synchronous buck converter with integrated MOSFETs.
- Wide input voltage range (4.5V to 18V) for versatile applications.
- Supports low output voltages down to 0.8V.
- Fixed switching frequency of 600 kHz for predictable performance.
- 180° out-of-phase operation reduces input capacitor ripple current.
- Integrated UVLO (Undervoltage Lockout) and thermal shutdown protection.
Applications
The TPS54291PWPR is widely used in applications requiring dual power rails, such as industrial automation systems, telecommunications equipment, and consumer electronics. Its ability to deliver high efficiency and compact power management makes it suitable for portable devices, networking hardware, and embedded systems. Additionally, its robust design and integrated protection features ensure reliable operation in demanding environments.
Q & A
1. What is the input voltage range of the TPS54291PWPR?
The input voltage range is 4.5V to 18V.
2. What is the maximum output current for each channel?
Channel 1 supports up to 1.5A, while Channel 2 supports up to 2.5A.
3. What is the switching frequency of this IC?
The switching frequency is fixed at 600 kHz.
4. Does the TPS54291PWPR support low output voltages?
Yes, it supports output voltages as low as 0.8V.
5. What package does the TPS54291PWPR come in?
It is available in a 16-HTSSOP (Exposed Pad) package.
6. What are the key protection features?
It includes UVLO (Undervoltage Lockout) and thermal shutdown protection.
7. Is the TPS54291PWPR suitable for portable devices?
Yes, its compact design and high efficiency make it ideal for portable applications.
8. Can it operate in industrial environments?
Yes, it is designed to operate reliably in industrial environments with its robust protection features.
9. What is the benefit of 180° out-of-phase operation?
It reduces input capacitor ripple current, lowering EMI and extending capacitor life.
10. Is external compensation required?
Yes, external compensation allows flexibility in choosing output capacitors.
