DATASHEET ISL62391, ISL62392, ISL62391C, ISL62392C FN6666 Rev 8.00 High-Efficiency, Triple-Output System Power Supply Controller for Notebook August 25, 2015 Computers The ISL62391, ISL62392, ISL62391C and ISL62392C Features controller generate supply voltages for battery-powered 3 High Performance R Technology systems. It includes two pulse-width modulation (PWM) controllers, adjustable from 0.6V to 5.5V, and a linear Fast Transient Response regulator (LDO3) that generates a fixed 3.3V and can deliver 1% Output Voltage Accuracy up to 100mA. The ISL62391, ISL62392, ISL62391C and 2 Fully Programmable Switch-Mode Power Supplies ISL62392C include on-board power-up sequencing, a power-good (PGOOD) output, digital soft-start, and internal Programmable Switching Frequency soft-stop output discharge that prevents negative voltages on Fixed 3.3V LDO Output shutdown. 3 Internal Soft-Start and Soft-Stop Output Discharge The patented R PWM control scheme provides a low jitter system with fast response to load transients. Light-load Wide Input Voltage Range: 5.5V to 25V efficiency is improved with period-stretching discontinuous Full and Ultrasonic Pulse-Skipping Mode conduction mode (DCM) operation. To eliminate noise in audio Power-Good Indicator frequency applications, an ultrasonic DCM mode is included, which limits the minimum switching frequency to 28kHz. Overvoltage, Undervoltage and Overcurrent Protection The ISL62391, ISL62391C and ISL62392, ISL62392C are Thermal Monitor and Protection identical except for how their overvoltage protection is Pb-Free (RoHS Compliant) handled. The ISL62391 and ISL62391C utilize a tri-state overvoltage scheme, whereas the ISL62392 and ISL62392C Applications employ a soft-crowbar method. Notebook and Sub-Notebook Computers The ISL62391, ISL62392, ISL62391C and ISL62392C are PDAs and Mobile Communication Devices available in a 28 Ld 4x4 TQFN package and operate over the extended temperature range (-40C to +100C). 3-Cell and 4-Cell Li+ Battery-Powered Devices Pinout ISL62391, ISL62392, ISL62391C, ISL62392C (28 LD 4X4 TQFN) TOP VIEW 28 27 26 25 24 23 22 PGOOD BOOT2 1 21 FSET2 2 20 LGATE2 FCCM PGND 3 19 VCC PVCC 4 18 LDO3EN 5 17 VIN FSET1 LDO3 6 16 CENTER PAD: GND FB1 7 15 LGATE1 8 9 10 11 12 13 14 FN6666 Rev 8.00 Page 1 of 22 August 25, 2015 VOUT1 FB2 ISEN1 VOUT2 OCSET1 ISEN2 EN1 OCSET2 PHASE1 EN2 UGATE1 PHASE2 BOOT1 UGATE2ISL62391, ISL62392, ISL62391C, ISL62392C Ordering Information PART NUMBER PACKAGE PKG. (Notes 1, 2) PART MARKING TEMP RANGE (C) (Pb-Free) DWG. ISL62391HRTZ (Note 3) 623 91HRTZ -10 to +100 28 Ld 4x4 TQFN L28.4x4 ISL62392HRTZ (Note 3) 623 92HRTZ -10 to +100 28 Ld 4x4 TQFN L28.4x4 ISL62391CHRTZ (No longer available or 62391C HRTZ -10 to +100 28 Ld 4x4 TQFN L28.4x4 supported) ISL62392CHRTZ 62392C HRTZ -10 to +100 28 Ld 4x4 TQFN L28.4x4 ISL62391IRTZ (Note 3) 623 91IRTZ -40 to +100 28 Ld 4x4 TQFN L28.4x4 ISL62392IRTZ (Note 3) 623 92IRTZ -40 to +100 28 Ld 4x4 TQFN L28.4x4 ISL62391CIRTZ (No longer available or 62391C IRTZ -40 to +100 28 Ld 4x4 TQFN L28.4x4 supported) ISL62392CIRTZ 62392C IRTZ -40 to +100 28 Ld 4x4 TQFN L28.4x4 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. Not Recommended for New Designs. No Recommended Replacement. FN6666 Rev 8.00 Page 2 of 22 August 25, 2015