Overview
The TPS565201 is a 5-A synchronous step-down converter designed by Texas Instruments. This device is optimized for simplicity and ease of use, requiring a minimal number of external components. It employs the proprietary D-CAP2™ mode control, which provides fast transient response and supports the use of low-ESR ceramic output capacitors without the need for complex external compensation circuits. The TPS565201 operates efficiently across a wide input voltage range of 4.5 V to 17 V and can output voltages from 0.76 V to 7 V. It is available in a compact 6-pin 1.6-mm × 2.9-mm SOT (DDC) package and operates over a junction temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range | 4.5 | - | 17 | V |
| Output Voltage Range | 0.76 | - | 7 | V |
| Maximum Output Current | - | - | 5 | A |
| High-Side Switch Resistance | 31 | - | - | mΩ |
| Low-Side Switch Resistance | 16 | - | - | mΩ |
| Switching Frequency | - | 500 | - | kHz |
| Shutdown Current | 0.8 | - | 5 | µA |
| Feedback Voltage Accuracy | - | 1% | - | - |
| Thermal Shutdown Threshold | 172 | - | - | °C |
Key Features
- Integrated 31-mΩ and 16-mΩ FETs for high efficiency.
- D-CAP2™ mode control with fast transient response, supporting low-ESR output capacitors.
- High efficiency at light loads with pulse-skipping Eco-mode™.
- 500-kHz switching frequency.
- ≤1 µA shutdown current.
- 1% feedback voltage accuracy.
- Startup from pre-biased output voltage.
- Cycle-by-cycle current limit and hiccup-mode overcurrent protection.
- Non-latch UVP, UVLO, and TSD protections.
Applications
- Digital TV power supply.
- High definition Blu-ray™ disc players.
- Networking home terminal.
- Digital set top box (STB).
- Surveillance systems.
Q & A
- What is the input voltage range of the TPS565201?
The input voltage range of the TPS565201 is from 4.5 V to 17 V.
- What is the maximum output current of the TPS565201?
The maximum output current of the TPS565201 is 5 A.
- What is the switching frequency of the TPS565201?
The switching frequency of the TPS565201 is 500 kHz.
- What type of mode control does the TPS565201 use?
The TPS565201 uses D-CAP2™ mode control with fast transient response.
- What are the key protections available in the TPS565201?
The TPS565201 includes cycle-by-cycle current limit, hiccup-mode overcurrent protection, non-latch UVP, UVLO, and TSD protections.
- What is the typical shutdown current of the TPS565201?
The typical shutdown current of the TPS565201 is ≤1 µA.
- What is the feedback voltage accuracy of the TPS565201?
The feedback voltage accuracy of the TPS565201 is 1%.
- Can the TPS565201 start up from a pre-biased output voltage?
Yes, the TPS565201 can start up from a pre-biased output voltage.
- What is the thermal shutdown threshold of the TPS565201?
The thermal shutdown threshold of the TPS565201 is 172°C.
- In what package is the TPS565201 available?
The TPS565201 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package.
