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ISL97656 数据表(PDF) 1 Page - Renesas Technology Corp |
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ISL97656 数据表(HTML) 1 Page - Renesas Technology Corp |
1 / 9 page FN6439 Rev 6.00 Page 1 of 9 July 19, 2012 FN6439 Rev 6.00 July 19, 2012 ISL97656 Step-Up Regulator with 4A Integrated Switch DATASHEET The ISL97656 is a high frequency, high efficiency current mode control non-synchronous step-up voltage regulator operated at constant PMW switching frequency. It has an internal 4.0A, 120mΩ Low side MOSFET and can deliver high output current and efficiency over 90%. The selectable 640kHz and 1.22MHz switching frequency allows use of smaller inductor and faster transient response. An external compensation pin gives the user flexibility in setting frequency compensation allowing the use of low ESR ceramic output capacitors. When in shut down mode, ISL97656 draws current <1µA and can operate at as low as 2.2V input. These features along with higher switching frequency allows use of tiny external components and makes it an ideal device for portable equipment and TFT-LCD displays. The ISL97656 is available in a 10 Ld TDFN package with a maximum height of 1.1mm. The device is specified for operation over the full -40°C to +85°C temperature range. Features •4.0A, Low rDS(ON) Integrated Low Side MOSFET • +2.2V to +6.0V Operating Input Voltage Range • +1.1*VIN to +24V Output Voltage Range • 640kHz or 1.22MHz Switching Frequency • Higher Efficiency and Better Thermal Performance • Adjustable Soft-Start • Internal Thermal Protection • 0.8mm Maximum Height 10 Ld TDFN Package • Pb-Free (RoHS Compliant) •Halogen Free Applications • Portable Equipment, Digital Cameras • TFT-LCD Displays, DSL Modems • PCMCIA Cards, GSM/CDMA Phones Pin Configuration ISL97656 (10 LD TDFN) TOP VIEW Ordering Information PART NUMBER (Notes 1, 2, 3) PART MARKING PACKAGE (Pb-Free) PKG. DWG. # ISL97656IRTZ 656Z 10 Ld TDFN L10.3x3B NOTES: 1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which 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. 2 3 4 1 9 8 7 10 COMP FB EN GND SS FREQ VIN LX 5 6 LX GND FIGURE 1. TYPICAL APPLICATION CIRCUIT 1 2 3 4 10 9 8 7 COMP FB EN GND SS FREQ VIN LX 5 GND 6 LX 12V 2.2V TO 6V INPUT OUTPUT D1 C2 22µF C3 27nF C4 0.1µF C3 22µF 10µH C5 4.7nF R3 3.9k R1 86.6k R2 10k |
类似零件编号 - ISL97656 |
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类似说明 - ISL97656 |
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