Overview
The TPS564201DDCT is a 4-A synchronous step-down converter produced by Texas Instruments. This device is designed in a compact 6-pin SOT-23 package and is optimized for low external component count. It features Texas Instruments' proprietary D-CAP2™ mode control, which supports low ESR output capacitors such as specialty polymer and ceramic capacitors without the need for complex external compensation circuits. The converter operates with an input voltage range of 4.5 V to 17 V and can provide an output voltage range of 0.76 V to 7 V, making it versatile for various applications. The TPS564201DDCT also includes advanced features like pulse skip mode for high efficiency during light load conditions, cycle-by-cycle overcurrent protection, and hiccup-mode overcurrent protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 17 | V |
| Output Voltage Range | 0.76 to 7 | V |
| Output Current | Up to 4 | A |
| Switching Frequency | 560 kHz (nominal) | kHz |
| High-Side MOSFET Resistance | 50 mΩ | mΩ |
| Low-Side MOSFET Resistance | 22 mΩ | mΩ |
| Feedback Voltage Accuracy | 1.6% (at 25°C) | % |
| Thermal Shutdown Threshold | 172°C | °C |
| Operating Junction Temperature Range | -40 to 125 | °C |
| Package Type | SOT-23 (6-pin) |
Key Features
- D-CAP2™ Mode Control: Supports low ESR output capacitors with fast transient response and no external compensation required.
- Pulse Skip Mode: Maintains high efficiency during light load conditions by reducing switching frequency.
- Integrated MOSFETs: High-side and low-side MOSFETs with low drain-to-source on resistance for high efficiency.
- Overcurrent Protection: Cycle-by-cycle and hiccup-mode overcurrent protection for reliable operation.
- Soft Start: Fixed 1.0-ms soft-start and pre-biased soft start for smooth startup.
- Thermal and Voltage Protections: Thermal shutdown, non-latch UVP, and TSD protections for enhanced reliability.
- Low Shutdown Current: Less than 5 µA in shutdown mode.
Applications
- Digital TV Power Supply: Suitable for power supply in digital TVs due to its high efficiency and reliability.
- High Definition Blu-ray™ Disc Players: Ideal for powering components in Blu-ray players requiring stable and efficient power supply.
- Networking Home Terminal: Used in networking equipment for reliable and efficient power conversion.
- Digital Set Top Box (STB): Applicable in set-top boxes for efficient power management.
- Surveillance Systems: Suitable for surveillance systems requiring stable and efficient power supply.
Q & A
- What is the input voltage range of the TPS564201DDCT?
The input voltage range is from 4.5 V to 17 V.
- What is the maximum output current of the TPS564201DDCT?
The maximum output current is up to 4 A.
- What is the switching frequency of the TPS564201DDCT?
The nominal switching frequency is 560 kHz.
- Does the TPS564201DDCT require external compensation components?
No, it does not require external compensation components due to its D-CAP2™ mode control.
- What type of MOSFETs are integrated into the TPS564201DDCT?
High-side and low-side MOSFETs with low drain-to-source on resistance.
- What is the thermal shutdown threshold of the TPS564201DDCT?
The thermal shutdown threshold is 172°C.
- What is the operating junction temperature range of the TPS564201DDCT?
The operating junction temperature range is from -40°C to 125°C.
- What type of package does the TPS564201DDCT come in?
The device is packaged in a 6-pin SOT-23.
- Does the TPS564201DDCT have overcurrent protection?
- What is the soft-start time of the TPS564201DDCT?
The soft-start time is fixed at 1.0 ms.
