Overview
The TPS563201DDCR is a 3A synchronous step-down voltage regulator produced by Texas Instruments. It is part of the TPS56320x series, designed to operate with a minimal number of external components and achieve low standby current. The device is housed in a 6-pin SOT-23 package and is specified to operate over a junction temperature range of –40°C to 125°C. It employs the D-CAP2 control scheme, which provides fast transient response and supports both low ESR and ceramic output capacitors without external compensation components.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5V to 17V | V |
| Output Voltage Range | 0.76V to 7V | V |
| Output Current | 3A | A |
| Switching Frequency | 580kHz | kHz |
| Feedback Voltage Accuracy | 2% (at 25°C) | % |
| Shutdown Current | < 20µA | µA |
| Package Type | SOT-23 (DDC) | |
| Package Size | 1.6mm × 2.9mm | mm |
| Junction Temperature Range | –40°C to 125°C | °C |
| Thermal Resistance (Junction-to-Ambient) | 92.6 °C/W | °C/W |
Key Features
- D-CAP2 control scheme with fast transient response and support for low ESR and ceramic output capacitors without external compensation components.
- Pulse-skip mode (TPS563201) for high efficiency during light load operation.
- Continuous current mode (TPS563208) for consistent output.
- Cycle-by-cycle overcurrent limit and hiccup-mode overcurrent protection.
- Non-latch undervoltage protection (UVP) and thermal shutdown (TSD) protections.
- Fixed soft start: 1.0ms.
- Startup from prebiased output voltage.
- Low standby current.
Applications
- Digital TV power supply.
- High definition Blu-ray disc players.
- Networking home terminals.
- Digital Set Top Box (STB).
- Surveillance systems.
Q & A
- What is the input voltage range of the TPS563201DDCR?
The input voltage range is from 4.5V to 17V. - What is the maximum output current of the TPS563201DDCR?
The maximum output current is 3A. - What is the switching frequency of the TPS563201DDCR?
The switching frequency is 580kHz. - What is the feedback voltage accuracy of the TPS563201DDCR at 25°C?
The feedback voltage accuracy is 2% at 25°C. - What is the shutdown current of the TPS563201DDCR?
The shutdown current is less than 20µA. - What package type and size does the TPS563201DDCR come in?
The TPS563201DDCR comes in a 6-pin SOT-23 (DDC) package, measuring 1.6mm × 2.9mm. - What are the key protection features of the TPS563201DDCR?
The key protection features include cycle-by-cycle overcurrent limit, hiccup-mode overcurrent protection, non-latch UVP, and TSD protections. - Can the TPS563201DDCR start up from a prebiased output voltage?
Yes, the TPS563201DDCR can start up from a prebiased output voltage. - What is the fixed soft start time of the TPS563201DDCR?
The fixed soft start time is 1.0ms. - What are some typical applications of the TPS563201DDCR?
Typical applications include digital TV power supply, high definition Blu-ray disc players, networking home terminals, digital Set Top Box (STB), and surveillance systems.
