DATA SHORT To request the full datasheet, please visit www.intersil.com/products/isl9500 ISL9500 FN9248 Rev 0.00 Precision Multi-Phase Buck PWM Controller December 2, 2005 The ISL9500 multi-phase Buck PWM control IC, with Features integrated half bridge gate drivers, provides a precision Diode Emulation Functionality in Deep and Deeper Sleep voltage regulation system for microprocessors in notebook Modes for Improved Light Load Efficiency computers. Two-phase operation eases the thermal management issues and load demand of high performance Single and/or Two-phase Power Conversion processors. This control IC also features both input voltage Loss-less Current sensing for Improved Efficiency and feed-forward and average current mode control for excellent Reduced Board Area dynamic response, Loss-less current sensing using - Optional Discrete Precision Current Sense Resistor MOSFET r and user selectable switching DS(ON) Internal Gate-Drive and Boot-Strap Diodes frequencies from 250kHz to 1MHz per phase. Precision CORE Voltage Regulation The ISL9500 includes a 6-bit digital-to-analog converter - 0.8% System Accuracy Over Temperature (DAC) that dynamically adjusts the CORE PWM output voltage. The ISL9500 also has logic inputs to select Active, 6-Bit Microprocessor Voltage Identification Input Deep Sleep and Deeper Sleep modes of operation. A Programmable Droop and CORE Voltage Slew Rate precision reference, remote sensing and proprietary architecture, with integrated, processor-mode, compensated Direct Interface with System Logic for Deep and Deeper Droop, provide excellent static and dynamic CORE voltage Sleep modes of operation regulation. Easily Programmable Voltage Setpoints for Initial Boot, Deep Sleep and Deeper Sleep Modes To improve efficiency at light loading, the ISL9500 can be configured to run in single phase PWM in Active, Deep or Excellent Dynamic Response Deeper Sleep modes of operation. Also, in Deep and - Combined Voltage Feed-Forward and Average Current Deeper sleep modes the ISL9500 will operate in diode Mode Control emulation. Overvoltage, Undervoltage and Overcurrent Protection Another feature of this IC controller is the PGOOD monitor Power-Good Output with Internal Blanking during VID and circuit that is held low until CORE voltage increases, during Mode Changes its soft-start sequence, to within 12% of the Boot voltage. User programmable Switching Frequency of 250kHz - This PGOOD signal is masked during VID changes. Output 1MHz overcurrent, overvoltage and undervoltage are monitored and result in the converter latching off and PGOOD signal Pb-Free Plus Anneal Available (RoHS Compliant) being held low. The overvoltage and undervoltage thresholds are 112% and 84% of the VID, Deep or Deeper Sleep setpoint, Ordering Information respectively. Overcurrent protection features a 32 cycle TEMP overcurrent shutdown. PGOOD, overvoltage, undervoltage PART PART RANGE PKG. and overcurrent provide monitoring and protection for the NUMBER MARKING (C) PACKAGE DWG. microprocessor and power system. The ISL9500 IC is ISL9500CVZ 38 Ld TSSOP ISL9500CVZ -10 to 85 M38.173 available in a 38 lead TSSOP. (See Note) (Pb-free) 38 Ld TSSOP ISL9500CVZ-T ISL9500CVZ -10 to 85 Tape and Reel M38.173 (See Note) (Pb-free) NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. FN9248 Rev 0.00 Page 1 of 2 December 2, 2005ISL9500 Copyright Intersil Americas LLC 2005. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. For additional products, see www.intersil.com/en/products.html Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such modification does not, in Intersil s sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN9248 Rev 0.00 Page 2 of 2 December 2, 2005