Overview
The TPS560200DBVT from Texas Instruments is a 500-mA synchronous step-down (buck) converter designed for high efficiency and low component count. It operates with an input voltage range of 4.5 V to 17 V and can output voltages between 0.8 V and 6.5 V. This device is integrated with two N-channel MOSFETs and uses the D-CAP2 mode control, which provides fast transient responses without the need for external compensation components. The TPS560200DBVT is packaged in a 5-pin SOT-23 package, making it suitable for space-constrained applications. It features advanced Eco-Mode for high efficiency at light loads and includes a 2-ms internal soft-start, thermal shutdown, and safe start-up into prebiased VOUT.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage (VIN) | 4.5 | 17 | V | |
| Output Voltage Range | 0.8 | 6.5 | V | |
| Output Current | 500 | mA | ||
| High-Side MOSFET Resistance | 0.50 | 0.95 | 1.50 | Ω |
| Low-Side MOSFET Resistance | 0.20 | 0.33 | 0.55 | Ω |
| Switching Frequency | 600 | kHz | ||
| Soft-Start Time | 2 | ms | ||
| Thermal Shutdown | 170 | °C | ||
| Operating Junction Temperature Range | -40 | 125 | °C | |
| Package Type | 5-Pin SOT-23 |
Key Features
- Integrated monolithic 0.95-Ω high-side and 0.33-Ω low-side MOSFETs
- Advanced Eco-Mode™ for high efficiency at light loads
- D-CAP2™ mode for fast transient responses without external compensation
- 600-kHz switching frequency
- 2-ms internal soft-start and safe start-up into prebiased VOUT
- Thermal shutdown and overcurrent protection
- Support for low ESR output capacitors, including ceramic and special polymer types
Applications
- Set Top Boxes
- Modems
- Digital TV Boxes (DTBs)
- ADSLs
Q & A
- What is the input voltage range of the TPS560200DBVT?
The input voltage range is from 4.5 V to 17 V.
- What is the output voltage range of the TPS560200DBVT?
The output voltage range is from 0.8 V to 6.5 V.
- What is the maximum output current of the TPS560200DBVT?
The maximum output current is 500 mA.
- What is the switching frequency of the TPS560200DBVT?
The switching frequency is approximately 600 kHz.
- Does the TPS560200DBVT have thermal shutdown protection?
- What is the package type of the TPS560200DBVT?
The device is packaged in a 5-pin SOT-23 package.
- Does the TPS560200DBVT support low ESR output capacitors?
- What is the purpose of the D-CAP2 mode in the TPS560200DBVT?
The D-CAP2 mode provides fast transient responses without the need for external compensation components.
- How does the advanced Eco-Mode in the TPS560200DBVT improve efficiency?
The advanced Eco-Mode increases efficiency at light loads by skipping pulses and reducing the switching frequency.
- Does the TPS560200DBVT have overcurrent protection?
