News & Events
Intersil Introduces Highly Integrated PWM Controller For Mobile Graphical Processing Units
-- The ISL6269 supports wide output load range up to 25A~-- Wide output voltage range from 0.6V to 3.3V~-- Provides the ability to program the PWM switching frequency
MILPITAS, CA, June 8, 2005 Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog solutions, today announced the release of the ISL6269, a Single Phase PWM Synchronous Buck Controller for Mobile Graphical Processing Units (GPU). The ISL6269 requires fewer external components than competing products on the market today which results in a smaller implementation area and lower manufacturing cost. It includes onboard MOSFET drivers, internal 5V LDO, integrated boot diode and a PWM audio frequency filter. Through this integration, the ISL6269 provides a flexible power solution that is easy to implement for GPUs in notebook PCs and other battery operated devices.
The ISL6269 also features Intersils Robust Ripple Regulator (R3) technology to provide superior dynamic response to input voltage and output load transients. Intersils R3 technology combines the best features of fixed-frequency PWM and hysteretic PWM while eliminating many of the associated shortcomings. With this technology, the ISL6269 is able to provide 1 percent regulation accuracy from 10 degrees C to 100 degrees C. A resistor divider is used to program the output voltage setpoint. The ISL6269 can be configured to operate in forced-continuous-conduction-mode (FCCM) or in diode-emulation-mode (DEM), which improves light load efficiency.
The ISL6269 offers additional features such as over-current protection, short-circuit protection, over-voltage protection, thermal protection programmable frequency and power good output that provide smooth, reliable operation under extreme conditions. The ISL6269 has a 1.5ms digital soft start that can be started at a pre-biased output voltage. The PWM frequency is programmed using a single resistor and can be changed on the fly. The over-current protection circuit measures positive flowing current through the output inductor. A single resistor programs the over-current and short-circuit set points.
The ISL6269 offers customers a flexible GPU power solution for both embedded and detached graphics systems. With a small package foot print, the ISL6269 will enable the users to place this controller any where on their board for better thermal management and efficiency.
ISL6269 Technical Summary
Features
- High performance Synthetic Ripple Regulation (R3)
- Extremely fast transient response
- External type-two loop compensation
- 1 percent regulation accuracy: -10°C to +100°C
- Wide input voltage range: +7.0V to +25.0V
- Wide output voltage range: +0.6V to +3.3V
- Wide output load range: 0A to 25A
- Programmable PWM frequency: 200KHz to 600KHz
- Fault identification by PGOOD pull down resistance
- Integrated MOSFET drivers with shoot-through protection
- Internal 5V LDO regulator
- Lossless RDS (ON) over-current protection
- Integrated boot diode
- Configurable forced continuous conduction or diode emulation for increased light load efficiency
- Pb-Free Available (RoHS Compliant)
ISL6269 is available now in a 16-ld (4mm x 4mm) QFN package. The suggested resale price in 1000 unit quantities is $2.50.
Learn more about Intersils complete family of power management solutions that satisfy a broad range of applications, including computing, communications, peripherals, display, networking, telecom, industrial, instrumentation and battery-powered products from Intersils Power web site at: http://www.intersil.com/power/ About Intersil
Intersil Corporation, a NASDAQ 100 Index company, is a leader in the design and manufacture of high performance analog semiconductors. The company’s products address three of the industry’s fastest growing markets: flat panel displays, optical storage (CD and DVD recordable) and power management. Intersil products include power management devices for battery management, hot-swap and hot-plug controllers, linear regulators, supervisory ICs, switching DC / DC regulators and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video and high performance operational amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and rad-hard applications. For more information about Intersil or to find out how to become a member of our winning team, visit the company’s web site and career page at www.intersil.com.
This release may include "forward looking statements" that are subject to risks and uncertainties. For information identifying economic, political, climatic, currency, regulatory, technological, competitive and some other important factors that could cause actual results to differ materially from those anticipated in the forward looking statements, see Intersil’s Safe Harbor Forward Looking Statement disclaimer found at http://www.intersil.com/legal.asp, as well as Intersil’s SEC filings as updated from time to time, found at http://www.sec.gov. All trademarks mentioned are the property of their respective owners.
