Overview
The TPS562208DDCR is a 2-A synchronous step-down converter produced by Texas Instruments. This device is part of the TPS56220x family, which includes the TPS562201 and TPS562208 models. The TPS562208DDCR is designed to operate with an input voltage range of 4.5V to 17V and can output voltages from 0.76V to 7V. It features Texas Instruments' proprietary D-CAP2 control scheme, which supports low-ESR output capacitors and provides a fast transient response, reducing the need for complex external compensation circuits.
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 | |
| Feedback Voltage Accuracy (25°C) | 2% | |
| Shutdown Current | < 20 µA | |
| Package Type | SOT-23-6 THIN, TSOT-23-6 | |
| Pulse-Skip Mode/Continuous Current Mode | Continuous Current Mode (TPS562208) |
Key Features
- Proprietary D-CAP2 control scheme with fast transient response, supporting low-ESR output capacitors such as specialty polymer and multi-layer ceramic capacitors.
- Integrated 84mΩ high-side and 140mΩ low-side FETs.
- Cycle-by-cycle overcurrent limit and hiccup-mode overcurrent protection.
- Non-latch undervoltage protection (UVP) and thermal shutdown (TSD) protections.
- Fixed soft start time of 1.0 ms.
- Start-up from prebiased output voltage.
- Low shutdown current of less than 20 µA.
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 TPS562208DDCR?
The input voltage range is from 4.5V to 17V).
- What is the output current capability of the TPS562208DDCR?
The output current capability is up to 2A).
- What is the switching frequency of the TPS562208DDCR?
The switching frequency is 580 kHz).
- Does the TPS562208DDCR support pulse-skip mode or continuous current mode?
The TPS562208DDCR supports continuous current mode).
- What type of protection mechanisms does the TPS562208DDCR have?
The device includes cycle-by-cycle overcurrent limit, hiccup-mode overcurrent protection, non-latch UVP, and TSD protections).
- What is the shutdown current of the TPS562208DDCR?
The shutdown current is less than 20 µA).
- What package type is the TPS562208DDCR available in?
The device is available in SOT-23-6 THIN, TSOT-23-6 packages).
- Can the TPS562208DDCR start up from a prebiased output voltage?
Yes, the device can start up from a prebiased output voltage).
- What is the feedback voltage accuracy of the TPS562208DDCR at 25°C?
The feedback voltage accuracy is 2% at 25°C).
- What are some typical applications of the TPS562208DDCR?
Typical applications include digital TV power supply, high definition Blu-ray disc players, networking home terminals, digital set-top boxes, and surveillance systems).
