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| High-Efficiency, Triple-Output System Power Supply Controller for Notebook Computers |
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Available in RoHS/Pb-Free
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 Buy direct from Intersil
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 Check distributor inventory
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 Request samples
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Part No. |
Design-In
Status |
Temp. |
Package |
MSL |
Price
US $ |
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| ISL62391HIEVAL1Z |
Active |
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Eval Board |
N/A |
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| ISL62391HRTZ |
Active |
Hi-Temp Comm |
28 Ld TQFN |
1 |
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| ISL62391HRTZ-T |
Active |
Hi-Temp Comm |
28 Ld TQFN T+R |
1 |
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| ISL62391LOEVAL1Z |
Active |
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Eval Board |
N/A |
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| The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice. |
| MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020 |
| SMD = Standard Microcircuit Drawing |
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 Description |
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The ISL62391, ISL62392 controller generates supply voltages for battery-powered systems. It includes two pulse-width modulation (PWM) controllers, adjustable from 0.6V to 5.5V, and a linear regulator (LDO3) that generates a fixed 3.3V and can deliver up to 100mA. The ISL62391, ISL62392 includes on-board power-up sequencing, a power-good (PGOOD) output, digital soft-start, and 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 28kHz.
The ISL62391 and ISL62392 are identical except for how their overvoltage protection is handled. The ISL62391 utilizes a tri-state overvoltage scheme, whereas the ISL62392 employs a soft-crowbar method.
The ISL62391, ISL62392 is available in 28 Ld 4x4 TQFN package and operates over the extended temperature range (-10°C to +100°C). |
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 Key Features |
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High Performance R3 Technology
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Fast Transient Response
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±1% Output Voltage Accuracy
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2 Fully Programmable Switch-Mode Power Supplies
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Programmable Switching Frequency
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Fixed 3.3V LDO Output
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Internal Soft-Start and Soft-Stop Output Discharge
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Wide Input Voltage Range: 5.5V to 25V
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Full and Ultrasonic Pulse-Skipping Mode
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Power-Good Indicator
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Overvoltage, Undervoltage and Overcurrent Protection
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Thermal Monitor and Protection
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Pb-Free (RoHS Compliant)
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| Related Documentation |
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 Datasheet(s): |
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 Evaluation Board(s): |
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 Parametric Data |
| | VIN (min) (V) | | 5.5 | | | VIN (max) (V) | | 25 | | | VOUT1 (min) (V) | | .6 | | | VOUT1 (max) (V) | | 5.5 | | | VOUT2 (V) | | 0.6 to 5.5 | | | VOUT3 (V) | | 3.3 | | | IOUT1 (A) | | 20 | | | IOUT2 (A) | | 20 | |
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| Applications |
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- Notebook and Sub-Notebook Computers
- PDAs and Mobile Communication Devices
- 3-Cell and 4-Cell Li+ Battery-Powered Devices
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| | HIP6018B | | Advanced PWM and Dual Linear Power Control | | | | ISL62392 | | High-Efficiency, Triple-Output System Power Supply Controller for Notebook Computers | | | | ISL6441 | | 1.4MHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller | | | | ISL6442 | | 2.5MHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller | | | | ISL6443A | | 300kHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller | | | | ISL6532A | | 3-in-1 ACPI Regulator/Controller for Dual Channel DDR and DDR2 Memory Systems | | | | ISL6534 | | Dual PWM with Linear | |
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