Step-Up Regulator with 4A Integrated Switch ISL97656 Features The ISL97656 is a high frequency, high efficiency current 4.0A, Low r Integrated Low Side MOSFET DS(ON) mode control non-synchronous step-up voltage regulator +2.2V to +6.0V Operating Input Voltage Range operated at constant PMW switching frequency. It has an +1.1*VIN to +24V Output Voltage Range internal 4.0A, 120m Low side MOSFET and can deliver high output current and efficiency over 90%. The selectable 640kHz 640kHz or 1.22MHz Switching Frequency and 1.22MHz switching frequency allows use of smaller Higher Efficiency and Better Thermal Performance inductor and faster transient response. An external Adjustable Soft-Start compensation pin gives the user flexibility in setting frequency compensation allowing the use of low ESR ceramic output Internal Thermal Protection capacitors. 0.8mm Maximum Height 10 Ld TDFN Package When in shut down mode, ISL97656 draws current <1A and Pb-Free (RoHS Compliant) can operate at as low as 2.2V input. These features along with Halogen Free higher switching frequency allows use of tiny external components and makes it an ideal device for portable Applications equipment and TFT-LCD displays. Portable Equipment, Digital Cameras The ISL97656 is available in a 10 Ld TDFN package with a TFT-LCD Displays, DSL Modems maximum height of 1.1mm. The device is specified for operation over the full -40C to +85C temperature range. PCMCIA Cards, GSM/CDMA Phones Pin Configuration Ordering Information ISL97656 PART (10 LD TDFN) NUMBER PART PACKAGE PKG. TOP VIEW (Notes 1, 2, 3) MARKING (Pb-Free) DWG. ISL97656IRTZ 656Z 10 Ld TDFN L10.3x3B COMP SS 1 10 NOTES: 1. Add -T* suffix for tape and reel. Please refer to TB347 for details FB 2 9 FREQ on reel specifications. EN 3 8 VIN 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, 4 7 GND LX and 100% matte tin plate plus anneal (e3 termination finish, which LX GND 5 6 is 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. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL97656. For more information on MSL please see techbrief TB363. 1 COMP SS 10 C3 R3 R1 86.6k 27nF 3.9k 2 FB FREQ 9 R2 C5 10k INPUT 3 EN VIN 8 4.7nF 2.2V TO 6V 10H 4 GND LX 7 C4 C3 22F 0.1F 5 6 GND LX OUTPUT 12V D1 C2 22F FIGURE 1. TYPICAL APPLICATION CIRCUIT July 19, 2012 CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Copyright Intersil Americas Inc. 2007-2010, 2012. All Rights Reserved FN6439.6 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.ISL97656 Absolute Maximum Ratings (T = +25C) Thermal Information A Temperature Under Bias -40C to +85C Thermal Resistance (Typical) (C/W) (C/W) JA JC Storage Temperature -65C to +150C 10 Ld TDFN Package (Notes 4, 5) . 53 3 Terminal Voltage with Respect to GND: Pb-Free Reflow Profile . see link below VIN to GND 6.5V