Overview
The TPS566250DDAR is a synchronous buck converter produced by Texas Instruments. This device is designed to provide a cost-effective, low-component-count, and low-standby-current solution for system designers. It features integrated FETs optimized for lower duty cycle applications and supports a wide input voltage range of 4.5 V to 17 V. The output voltage can be set between 0.6 V and 1.87 V with a 5.5-mV feedback voltage step, making it versatile for various power bus regulators in end equipment.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 17 | V |
| Output Voltage Range | 0.6 to 1.87 | V |
| Output Current | 6 | A |
| Switching Frequency | 650 | kHz |
| High-Side MOSFET Resistance | 44 | mΩ |
| Low-Side MOSFET Resistance | 23 | mΩ |
| Output Voltage Accuracy (VID Control) | ±1% | - |
| Soft Start Time | 1 ms | - |
| Package Type | HSOP (8-pin) | - |
| Body Size | 4.90 mm x 3.90 mm | - |
Key Features
- Integrated FETs: Optimized for lower duty cycle applications with 44 mΩ high-side and 23 mΩ low-side MOSFET resistances.
- VID Control: Supports multibyte interface with I2C compatible VID control, allowing output voltage changes via I2C commands.
- D-CAP2™ Control Mode: Provides fast transient response with no external compensation components required.
- Advanced Eco-mode™: Maintains high efficiency at light loads and low output voltage ripple.
- Soft Start and Pre-Biased Soft Start: Internal 1 ms soft-start and monotonic pre-biased soft start to prevent sinking current from the output during startup.
- Protection Features: Includes on-chip overcurrent, undervoltage lockout, and thermal shutdown protection.
- I2C Interface: Supports reading and writing to internal registers for output voltage control and power good state monitoring.
Applications
- Media Processors for Consumer Applications: Suitable for digital TVs, set-top boxes, and other consumer electronics.
- System On-Chip Power: Ideal for powering system-on-chip (SoC) devices.
- High Density Power Distribution Systems: Used in high-density power distribution systems requiring efficient and compact power solutions.
Q & A
- What is the input voltage range of the TPS566250?
The input voltage range is from 4.5 V to 17 V.
- What is the maximum output current of the TPS566250?
The maximum output current is 6 A.
- What is the switching frequency of the TPS566250?
The switching frequency is approximately 650 kHz.
- How is the output voltage controlled in the TPS566250?
The output voltage can be set using either a resistor divider connected to the FB pin or via I2C commands.
- What protection features does the TPS566250 have?
The device includes overcurrent protection, undervoltage lockout, and thermal shutdown protection.
- What is the purpose of the D-CAP2™ control mode in the TPS566250?
The D-CAP2™ control mode provides fast transient response without the need for external compensation components.
- How does the Advanced Eco-mode™ work in the TPS566250?
The Advanced Eco-mode™ maintains high efficiency at light loads and reduces output voltage ripple.
- What is the soft start time of the TPS566250?
The internal soft start time is 1 ms.
- What is the package type and body size of the TPS566250?
The package type is HSOP (8-pin) with a body size of 4.90 mm x 3.90 mm.
- How does the I2C interface work in the TPS566250?
The I2C interface allows for reading and writing to internal registers to control the output voltage and monitor the power good state.
