DATASHEET To request the full datasheet, please visit www.intersil.com/products/isl62884c ISL62884C Features The ISL62884C is a single-phase PWM buck regulator for miroprocessor core power supply. It uses an integrated gate drivers to provide a complete solution. The PWM modulator of ISL62884C is based on Intersil's Robust Ripple Regulator (R3™) technology. Compared with traditional modulators, the R3™ modulator commands variable switching frequency during load transients, achieving faster transient response. With the same modulator, the switching frequency is reduced at light load, increasing the regulator efficiency. • Precision Core Voltage Regulation - 0.5% System Accuracy Over-Temperature - Enhanced Load Line Accuracy The ISL62884C is fully compliant with IMVP-6™ specifications. It responds to DPRSLPVR signals by entering/exiting diode emulation mode. It reports the regulator output current through the IMON pin. It senses the current by using either discrete resistor or inductor DCR whose variation over-temperature can be thermally compensated by a single NTC thermistor. It uses differential remote voltage sensing to accurately regulate the processor die voltage. The adaptive body diode conduction time reduction function minimizes the body diode conduction loss in diode emulation mode. User-selectable overshoot reduction function offers an option to aggressively reduce the output capacitors as well as the option to disable it for users concerned about increased system thermal stress. • Voltage Identification Input - 7-Bit VID Input, 0V to 1.500V in 12.5mV Steps - Supports VID Changes On-The-Fly • Supports Multiple Current Sensing Methods - Lossless Inductor DCR Current Sensing - Precision Resistor Current Sensing • Superior Noise Immunity and Transient Response • Current Monitor • Differential Remote Voltage Sensing • High Efficiency Across Entire Load Range • Integrated Gate Driver • Adaptive Body Diode Conduction Time Reduction • User-selectable Overshoot Reduction Function • Small Footprint 28 Ld 4x4 TQFN Package • Pb-Free (RoHS Compliant) Applications*(see page 29) • Notebook Core Voltage Regulator • Notebook GPU Voltage Regulator Related Literature*(see page 29) • See AN1545 for Evaluation Board Application Note “ISL62884CEVAL2Z Evaluation User Guide” Load Line Regulation 0.91 VIN = 19V 0.90 0.89 VOUT (V) 0.88 0.87 0.86 0.85 0.84 0.83 VIN = 12V 0.82 VIN = 8V 0.81 0.80 0 March 16, 2010 FN7591.0 1 2 4 6 8 10 12 14 IOUT (A) 16 18 20 22 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a trademark of Intersil Americas LLC. Copyright © Intersil Americas LLC. 2010. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL62884C Single-Phase PWM Regulator for IMVP-6™ Mobile CPUs ISL62884C For additional products, see www.intersil.com/product_tree Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets 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 Submit Document Feedback 2 FN7591.0 March 16, 2010