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L6788A Datasheet(PDF) 1 Page - STMicroelectronics |
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L6788A Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 18 page July 2009 Doc ID 15341 Rev 2 1/18 18 L6788A 3-phase controller with embedded drivers for the next GPU generation Features ■ 1, 2 or 3 selectable phase operation ■ Phases self detection ■ High current internal drivers ■ Versatile solution: serial and parallel VID for output voltage setting ■ Serial BUS interface for power manager and monitoring ■ Automatic startup phase procedure ■ Advanced IC and VRM thermal management to assure robust design and safe operation ■ 5 V LDO regulator output to increases design flexibility. ■ Adjustable and precise output voltage ■ Full differential current sense across inductor ■ Differential remote voltage sensing ■ LSLess startup to manage pre-biased output ■ Programmable overcurrent protection ■ Adjustable switching frequency ■ Enable signal ■ VPQFN40 6x6 mm package with exposed pad Applications ■ Graphic card GPU supply ■ High current DC-DC converters Description The device implements a one-to-three phases step-down controller with three integrated high current drivers in a compact 6x6 mm body package with exposed pad. Output voltage can be selected trough serial and parallel VID up to 1.3500 V and managing D-VID with ±2% output voltage accuracy. The device manages serial BUS communication to program power management functionalities as well as monitoring. The device features automatic startup phase procedure and phases self detection for safe operation. The controller embeds 5 V LDO regulator increasing design flexibility. Advanced IC and VRM thermal management to assure robust design and safe operation. The controller assures fast protection against load overcurrent and under / overvoltage. L6788A is available in VPQFN 6 x 6 mm package. Table 1. Device summary Order code Package Packing L6788A VPQFN40 Tray L6788ATR VPQFN40 Tape and reel VPQFN40 - 6 x 6 mm www.st.com |
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