Overview
The TPS562201DDCT from Texas Instruments is a 2A synchronous step-down converter designed for high efficiency and minimal external component count. This device is packaged in a 6-pin SOT-23-THN (DDC) package and operates over a wide input voltage range of 4.5V to 17V, with an output voltage range of 0.76V to 7V. It features the proprietary D-CAP2™ control scheme, which provides fast transient response and supports low ESR output capacitors without the need for complex external compensation circuits. The TPS562201 is particularly suited for applications requiring high light load efficiency due to its pulse-skip mode operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 17 | V |
| Output Voltage Range | 0.76 to 7 | V |
| Output Current | 2 | A |
| Switching Frequency | 580 | kHz |
| High-Side Switch Resistance | 140 | mΩ |
| Low-Side Switch Resistance | 84 | mΩ |
| Feedback Voltage Accuracy (25°C) | 2% | |
| Shutdown Current | < 20 | µA |
| Operating Junction Temperature | -40 to 125 | °C |
| Package Type | SOT-23-THN (DDC) | |
| Number of Pins | 6 |
Key Features
- D-CAP2™ control scheme with fast transient response
- Pulse-skip mode for high light load efficiency
- 580kHz switching frequency
- Low shutdown current less than 20µA
- 2% feedback voltage accuracy at 25°C
- Start-up from prebiased output voltage
- Cycle-by-cycle overcurrent limit and hiccup-mode overcurrent protection
- Non-latch UVP and TSD protections
- Fixed soft start: 1.0ms
- Support for low ESR output capacitors without external compensation
Applications
- Digital TV power supply
- High definition Blu-ray™ disc players
- Networking home terminals
- Digital set-top boxes (STB)
- Surveillance systems
Q & A
- What is the input voltage range of the TPS562201DDCT?
The input voltage range is from 4.5V to 17V.
- What is the maximum output current of the TPS562201DDCT?
The maximum output current is 2A.
- What is the switching frequency of the TPS562201DDCT?
The switching frequency is 580kHz.
- What is the feedback voltage accuracy at 25°C?
The feedback voltage accuracy is 2% at 25°C.
- Does the TPS562201DDCT support start-up from a prebiased output voltage?
- What type of overcurrent protection does the TPS562201DDCT have?
- What is the shutdown current of the TPS562201DDCT?
- What is the operating junction temperature range of the TPS562201DDCT?
- What package type is the TPS562201DDCT available in?
- What are some typical applications of the TPS562201DDCT?
