Overview
The TPS54327DRCT is a 3-A synchronous step-down (buck) converter produced by Texas Instruments. This device operates using the D-CAP2™ mode control, which provides a fast transient response without the need for external compensation components. It is designed to offer a cost-effective, low-component-count solution with low standby current, making it suitable for a wide range of low-voltage system applications. The TPS54327DRCT is available in a 10-pin VSON (DRC) package and operates over a temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 V to 18 V | V |
| Output Voltage Range | 0.76 V to 7 V | V |
| Output Current | 3 A | A |
| Switching Frequency | 700 kHz | kHz |
| High-Side MOSFET Resistance | 100 mΩ | mΩ |
| Low-Side MOSFET Resistance | 70 mΩ | mΩ |
| Shutdown Current | < 10 μA | μA |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 10-pin VSON (DRC) |
Key Features
- D-CAP2™ mode control for fast transient response and low output ripple, allowing the use of ceramic output capacitors.
- Wide input voltage range: 4.5 V to 18 V and output voltage range: 0.76 V to 7 V.
- Highly efficient integrated FETs with 100 mΩ (high-side) and 70 mΩ (low-side) resistance.
- High efficiency with less than 10 μA shutdown current.
- High initial bandgap reference accuracy and adjustable soft start time.
- Prebiased soft start to prevent current from being pulled from the output during start-up.
- Cycle-by-cycle overcurrent limit for enhanced protection.
Applications
- Digital TV power supply
- High Definition Blu-ray Disc™ players
- Networking home terminals
- Digital Set Top Box (STB)
- Wide range of applications for low-voltage systems
Q & A
- What is the input voltage range of the TPS54327DRCT?
The input voltage range is from 4.5 V to 18 V.
- What is the maximum output current of the TPS54327DRCT?
The maximum output current is 3 A.
- What is the switching frequency of the TPS54327DRCT?
The switching frequency is 700 kHz.
- What type of MOSFETs are integrated into the TPS54327DRCT?
The device includes two integrated N-channel MOSFETs.
- What is the shutdown current of the TPS54327DRCT?
The shutdown current is less than 10 μA.
- What is the operating temperature range of the TPS54327DRCT?
The operating temperature range is from -40°C to 85°C.
- What package types are available for the TPS54327DRCT?
The device is available in an 8-pin DDA package and a 10-pin DRC package.
- What is the D-CAP2™ mode control used for in the TPS54327DRCT?
The D-CAP2™ mode control provides a fast transient response and allows the use of ceramic output capacitors with low ESR.
- Does the TPS54327DRCT have overcurrent protection?
Yes, it features cycle-by-cycle overcurrent limit protection).
- What is the purpose of the prebiased soft start feature in the TPS54327DRCT?
The prebiased soft start feature prevents current from being pulled from the output during start-up if the output is prebiased, ensuring a smooth start-up process).
