Overview
The TPS542941PWPR is a 2A/3A dual-channel synchronous step-down (buck) converter manufactured by Texas Instruments. This device is designed for point-of-load regulation in low-power systems and offers a wide range of applications due to its high efficiency and fast transient response. The TPS542941 uses the D-CAP2™ control mode, which eliminates the need for external loop compensation components and supports the use of low ESR output capacitors, including ceramic and special polymer types. It is available in a 4.4mm × 5.0mm 16-pin HTSSOP (PWP) package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 18 | V |
| Output Voltage Range | 0.76 to 7 | V |
| Continuous Load Current (Channel 1) | 2 | A |
| Continuous Load Current (Channel 2) | 3 | A |
| Switching Frequency | 700 kHz | |
| High-Side MOSFET rDS(on) | 150 mΩ | |
| Low-Side MOSFET rDS(on) | 100 mΩ | |
| Soft Start Time | 1.0 ms | |
| Operating Ambient Temperature Range | -40 to 85 | °C |
| Package Type | HTSSOP (PWP) 16-pin |
Key Features
- D-CAP2™ control mode for fast transient response without external loop compensation components.
- Highly efficient integrated FETs optimized for low duty cycle applications.
- Low-side rDS(on) loss-less current sensing.
- Fixed soft start time of 1.0 ms and non-sinking pre-biased soft start.
- Power-good outputs and hiccup timer for overload protection.
- Auto-Skip Eco-mode™ for increased light load efficiency.
- Cycle-by-cycle over-current limit control and OCL/UVLO/TSD protections.
- Adaptive gate drivers with integrated boost.
Applications
- Point-of-load regulation in low-power systems.
- Digital TV power supply.
- Networking home terminals.
- Digital set-top boxes (STBs).
- DVD players/recorders.
- Gaming consoles and other consumer electronics.
Q & A
- What is the input voltage range of the TPS542941PWPR?
The input voltage range is from 4.5 V to 18 V.
- What are the continuous load currents for each channel?
Channel 1 supports up to 2 A, and Channel 2 supports up to 3 A.
- What is the switching frequency of the TPS542941PWPR?
The switching frequency is approximately 700 kHz.
- What type of control mode does the TPS542941PWPR use?
The device uses the D-CAP2™ control mode.
- Does the TPS542941PWPR require external loop compensation components?
No, it does not require external loop compensation components due to its D-CAP2™ control mode.
- What is the soft start time of the TPS542941PWPR?
The soft start time is 1.0 ms.
- What are the key protection features of the TPS542941PWPR?
The device includes cycle-by-cycle over-current limit control, UVLO, TSD protections, and a hiccup timer for overload protection.
- How does the Auto-Skip Eco-mode™ feature work?
The Auto-Skip Eco-mode™ increases light load efficiency by transitioning to discontinuous conduction mode when the load current decreases.
- What type of package is the TPS542941PWPR available in?
The device is available in a 4.4mm × 5.0mm 16-pin HTSSOP (PWP) package.
- What are some typical applications of the TPS542941PWPR?
Typical applications include digital TV power supplies, networking home terminals, digital set-top boxes, DVD players/recorders, and gaming consoles.
