Date: 10/06/2012

Green hybrid digital, dual PWM controller from Intersil compliant with Intel's VR12/IMVP7 specs

Intersil Corporation has introduced a new green hybrid digital, dual PWM controller ISL6367 that is compliant with Intel's VR12/IMVP7 specification.

The ISL6367 incorporates a 6-phase PWM to control the microprocessor core or memory voltage regulator and a single-phase peripheral PWM voltage regulator for graphics, system agent or processor I/O. The ISL6367 has simplified programmable functions and telemetry for optimal system flexibility.

Intersil's proprietary hybrid digital approach eliminates the need for non-volatile memory (NVM) and firmware typically required by digital solutions.

Features:
1. External programmability to support different platforms and designs
2. Best-in-class linear control loop architecture
3. Proprietary EAPP control architecture provides current balance during high frequency transients and eliminates beat frequency oscillation
4. Feedforward architecture achieves constant modulation gain with input voltage variation
5. PMBus/SMBus/I2C compatibility for digital power management
6. Optional input current sensing for true catastrophic failure protection
7. Two output sensing points for protection against single point of failure
8. Low quiescent current
9. Auto phase dropping
10. Diode emulation
11. Compatible with phase doublers such as the ISL6611A and ISL6617, to double or quadruple the phase count (up to 24+4 phases)
12. Up to 2MHz switching frequency per phase

"These green hybrid digital solutions truly bring value to end users," said Hsu Lung-luen, chief operating officer at ASRock. "Intersil's hybrid digital technology does indeed outperform, providing invaluable balance of system performance and reliability within the digital power management landscape."

"The ISL6367 provides flexibilities of digital controllers without the learning curves required to design with it," said Majid Kafi, vice president and general manager, computing products group at Intersil. "Major customers like ASRock are already adopting this design approach."

The ISL6367 is available now in 60-pin 7 x 7 QFN packages with prices starting at $3.75 each in 1,000-unit quantities.

For more information: http://www.intersil.com/products/ISL6367