Overview
The TPS563240DDCR is a 3-A synchronous step-down voltage regulator produced by Texas Instruments. This regulator is designed to be simple and easy to use, integrated in a 6-pin SOT-23 package. It features the proprietary D-CAP3 mode control, which supports low ESR output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors without the need for complex external compensation circuits. The device is optimized for minimum external component count and low standby current, making it suitable for a variety of applications requiring high efficiency and fast transient response.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 17 | V |
| Output Voltage Range | 0.6 to 7 | V |
| Output Current | 3 (continuous), 3.5 (transient) | A |
| Switching Frequency | 1.4 MHz | Hz |
| Feedback Voltage Accuracy | 1% (at 25°C) | % |
| Soft Start Time | 1.7 ms | ms |
| Shutdown Current | < 10 µA | µA |
| Junction Temperature Range | -40 to 125 | °C |
| Package Type | SOT-23 (6-pin) | |
| Package Size | 1.60 mm × 2.90 mm | mm |
Key Features
- D-CAP3 mode control with fast transient response, supporting low ESR output capacitors without external compensation.
- Pulse-skip mode during light load operation to maintain high efficiency without going below 25-kHz switching frequency.
- Cycle-by-cycle overcurrent limit and hiccup-mode overcurrent protection.
- Non-latch undervoltage protection (UVP) and thermal shutdown (TSD) protections.
- Startup from pre-biased output voltage and fixed soft start time of 1.7 ms.
- Low shutdown current of less than 10 µA.
Applications
- TV and set-top boxes.
- Broadband modems.
- Access point networks and wireless routers.
- Surveillance systems.
Q & A
- What is the input voltage range of the TPS563240DDCR?
The input voltage range is from 4.5 V to 17 V.
- What is the maximum output current of the TPS563240DDCR?
The maximum continuous output current is 3 A, with a transient current capability of up to 3.5 A.
- What is the switching frequency of the TPS563240DDCR?
The switching frequency is 1.4 MHz.
- Does the TPS563240DDCR support pulse-skip mode?
Yes, it operates in pulse-skip mode during light load conditions to maintain high efficiency.
- What type of package is the TPS563240DDCR available in?
The device is available in a 6-pin SOT-23 package.
- What is the junction temperature range for the TPS563240DDCR?
The junction temperature range is from -40°C to 125°C.
- Does the TPS563240DDCR have built-in overcurrent protection?
Yes, it features cycle-by-cycle overcurrent limit and hiccup-mode overcurrent protection.
- How does the TPS563240DDCR handle startup from a pre-biased output voltage?
The device initiates switching and ramps up smoothly into regulation after the internal reference voltage becomes greater than the feedback voltage.
- What is the soft start time of the TPS563240DDCR?
The fixed soft start time is 1.7 ms.
- What is the shutdown current of the TPS563240DDCR?
The shutdown current is less than 10 µA.
