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ISL62386 Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL62386 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 20 page 1 ® FN6831.0 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 registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL62386 High-Efficiency, Quad Output System Power Supply Controller for Notebook Computers The ISL62386 controller generates supply voltages for battery-powered systems. The ISL62386 includes two pulse-width modulation (PWM) controllers, adjustable from 0.6V to 5.5V, and two linear regulators, LDO5 and LDO3, that generate a fixed 5V output and a fixed 3.3V output respectively. Each can deliver up to 100mA. The Channel 2 switching regulator will automatically take over the LDO5 load when programmed to 5V output. This provides a large power saving and boosts efficiency. The ISL62386 includes on-board power-up sequencing, one power-good (PGOOD) output, digital soft-start, and an internal soft-stop output discharge that prevents negative voltages on shutdown. The patented R3 PWM control scheme provides a low jitter system with fast response to load transients. Light-load efficiency is improved with period-stretching discontinuous conduction mode (DCM) operation. To eliminate noise in audio frequency applications, an ultrasonic DCM mode is included, which limits the minimum switching frequency to approximately 28kHz. The ISL62386 is available in a 32 Ld 5x5 TQFN package, and can operate over the extended temperature range (-10°C to +100°C). Features • High Performance R3 Technology • Fast Transient Response • ±1% Output Voltage Accuracy: -10°C to +100°C • Two Fully Programmable Switch-Mode Power Supplies with Independent Operation • Programmable Switching Frequency • Integrated MOSFET Drivers and Bootstrap Diode • Fixed +3.3V LDO Output with Enable Control • Fixed +5V LDO with Automatic Switchover to SMPS2 • Internal Soft-Start and Soft-Stop Output Discharge • Wide Input Voltage Range: +5.5V to +25V • Full and Ultrasonic Pulse-Skipping Mode • Power-Good Indicator • Overvoltage, Undervoltage and Overcurrent Protection • Thermal Monitor and Protection • Pb-Free (RoHS Compliant) Applications • Notebook and Sub-Notebook Computers • PDAs and Mobile Communication Devices • 3-Cell and 4-Cell Li+ Battery-Powered Devices • General Purpose Switching Buck Regulators Pinout ISL62386 (32 LD 5X5 TQFN) TOP VIEW Ordering Information PART NUMBER (Note) PART MARKING TEMP RANGE (°C) PACKAGE (Pb-Free) PKG. DWG. # ISL62386HRTZ 62386 HRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A ISL62386HRTZ-T* 62386 HRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A *Please refer to TB347 for details on reel specifications. NOTE: 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. FSET2 FCCM AGND2 VCC AGND1 LDO3EN FSET1 PGOOD BOOT2 LGATE2 PGND LDO5 VIN LDO3 LGATE1 BOOT1 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 32 31 30 29 28 27 26 25 9 1011 12 13 1415 16 THERMAL PAD (AGND) Data Sheet February 4, 2009 |
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