DATASHEET SIGNS OR N E W D E F D E D N E M NOT RECOM LACEMENT ENDED REP Center atplease visit www.intersil.com/products/isl98603 NO RECOMM To request ortdatasheet, the ppfull Technical Su tersil.com/tsc r u o ct ta n co n SIL or www.i 1-888-INTER 5 Channel DC/DC Converter + VON Slice + Power-Good ISL98603 Features The ISL98603 represents a high power, integrated LCD supply IC targeted at large panel LCD displays. The ISL98603 integrates a high power boost converter for AVDD generation, VON and VOFF charge pump drivers, one synchronous buck regulator, and one synchronous buck controller for 2 logic voltages. The VON slicing circuitry and power-good function are also included. • 9.5V to 15.0V Input Supply • 1.3MHz Switching Frequency • 5.0A Integrated Boost for Up to 19V AVDD • VON Charge Pump, Up to 36V and 120mA • VOFF Charge Pump, Down to -10V and 120mA Operating at 1.3MHz, the AVDD boost converter features a 5.0A boost FET. Feedback is taken from the far side of the delay FET for improving regulation. The OVP circuit protects output side components. • Synchronous Buck1 for 3.3V/2.5V with 2.0A Peak FET The logic synchronous buck converter features two 2.3A FETs operating at 1.3MHz internal clock. The output voltage is set by the IC internally or feedback resistor. The soft-start circuitry are also integrated with the buck. • VON Slice Function Integrated • Synchronous Buck2 Controller Output from 0.9V to 2.0V • AVDD Delay Switch Capable of Soft-starting into a Highly Capacitive, Heavy Load • Power-Good Function for TCON Enable • Automatic Start-Up Sequencing • UVLO, UVP, OVP, OCP, and OTP Protection The second logic voltage is generated from synchronous buck converter with MOSFET controllers. The overcurrent protection is also integrated with the buck. • 40 Ld 6x6 QFN • Specified for Ambient Operation Over the -40°C to +85°C Temperature Range The charge pump of VON and VOFF use the full switching frequency and integrates the driver for high current capability. VON is further processed through an integrated VON Slice circuit in order to reduce flicker. • Pb- Free (RoHS Compliant) Applications • LCD TV Alternative fixed voltages at the boost, Buck1, Buck2, VON charge pump, and VOFF charge pump are available in ISL98603. Pin Configuration January 12, 2012 FN7899.1 1 SW2 SW1 NC PGND4 38 37 36 35 34 PVIN2 SWIN 39 PGND3 SWOUT 40 FBB AVDD ISL98603 40 LD 6x6 QFN TOP VIEW 33 32 31 FBN 1 30 PVIN1 AGND 2 29 NC REF 3 28 PHASE1 COMP 4 27 EN SUPN 5 26 PGND2 DRVN 6 25 COMPB1 PGND1 7 24 VDC DRVP 8 23 LGATE SUPP 9 22 NC FBP 10 21 UGATE 11 12 13 14 15 16 17 18 19 20 GHON GHC GHD YV1C COMPB2 FBB2 CPG BOOT NC PHASE2 THERMAL PAD CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2011, 2012. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners ISL98603 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 2 FN7899.1 January 12, 2012