Overview
The L6788A, produced by STMicroelectronics, is a 3-phase controller with embedded drivers designed for the next generation of GPU power management. This device is part of the L6788A series and is specifically packaged in a VPQFN40 6x6 mm body with an exposed pad, as indicated by the 'TR' suffix for tape and reel packaging. It is engineered to manage power delivery efficiently, ensuring robust and safe operation in high-current DC-DC converter applications.
Key Specifications
| Parameter | Description |
|---|---|
| Package | VPQFN40 6x6 mm with exposed pad |
| Phase Operation | 1, 2, or 3 selectable phases with self-detection |
| Output Voltage | Up to 1.3500 V, adjustable via serial and parallel VID, ±2% accuracy |
| Switching Frequency | Programmable, default 200 kHz per phase |
| Current Sense | Differential current sense across inductor |
| Thermal Management | Advanced IC and VRM thermal management |
| LDO Regulator | 5 V LDO regulator output |
| Protection Features | Programmable overcurrent protection, OVP, UVP, and thermal protection |
| Interface | Serial BUS interface for power management and monitoring |
Key Features
- High current internal drivers for efficient power delivery
- Versatile solution with serial and parallel VID for output voltage setting
- Automatic startup phase procedure and phases self-detection for safe operation
- Differential remote voltage sensing and full differential current sense across inductor
- LSLess startup to manage pre-biased output
- Adjustable switching frequency and programmable overcurrent protection
- Advanced IC and VRM thermal management
- 5 V LDO regulator output to increase design flexibility
- Serial BUS interface for power management and monitoring
Applications
- Graphic card GPU supply
- High current DC-DC converters
- Other high-power electronic devices requiring efficient and robust power management
Q & A
- What is the L6788A used for?
The L6788A is used for managing power delivery in high-current DC-DC converter applications, particularly in graphic card GPU supplies and other high-power electronic devices.
- What are the key features of the L6788A?
The key features include high current internal drivers, versatile output voltage setting via serial and parallel VID, automatic startup phase procedure, differential current sense, and advanced thermal management.
- How many phases can the L6788A operate in?
The L6788A can operate in 1, 2, or 3 phases with self-detection.
- What is the default switching frequency of the L6788A?
The default switching frequency is 200 kHz per phase, but it is programmable.
- What protection features does the L6788A have?
The L6788A includes programmable overcurrent protection, overvoltage protection (OVP), undervoltage protection (UVP), and thermal protection.
- How does the L6788A manage thermal issues?
The device features advanced IC and VRM thermal management to ensure robust design and safe operation.
- What is the purpose of the 5 V LDO regulator in the L6788A?
The 5 V LDO regulator output increases design flexibility.
- How does the L6788A communicate for power management and monitoring?
The device uses a serial BUS interface for power management and monitoring.
- What is the package type and size of the L6788ATR?
The L6788ATR is packaged in a VPQFN40 6x6 mm body with an exposed pad.
- What is the significance of the 'TR' suffix in L6788ATR?
The 'TR' suffix indicates that the component is packaged in tape and reel format.
