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62383HRTZ Просмотр технического описания (PDF) - Intersil

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62383HRTZ High-Efficiency, Quad or Triple-Output System Power Supply Controller for Notebook Computers Intersil
Intersil Intersil
62383HRTZ Datasheet PDF : 23 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ISL62381, ISL62382, ISL62383, ISL62381C,
ISL62382C, ISL62383C
Data Sheet
May 13, 2011
FN6665.5
High-Efficiency, Quad or Triple-Output
System Power Supply Controller for
Notebook Computers
The ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C
and ISL62383C family of controllers generate supply voltages
for battery-powered systems. These controllers include 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 and an adjustable output respectively, and
each can deliver up to 100mA. The ISL62383 and ISL62383C
have the same outputs as the ISL62381, ISL62382, ISL62381C
and ISL62382C but without LDO3 linear regulator. The channel
2 switching regulator will automatically take over the LDO5 load
when programmed to 5V output. This provides a large power
savings and boosts efficiency. These controllers include on-
board power-up sequencing, two power-good (PGOOD)
outputs, digital soft-start, and internal soft-stop output discharge
that prevent 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 ISL62381, ISL62382, ISL62381C and ISL62382C are
available in a 32 Ld 5x5 TQFN package, and the ISL62383
and ISL62383C are available in a 28 Ld 4x4 TQFN package.
This family of controllers 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
• Adjustable (+1.2V to +5V) LDO Output
• Fixed +5V LDO Output 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
• Fault Identification by PGOOD Pull-Down Resistance
• 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
Ordering Information
PART
NUMBER
(Notes 1, 2, 3)
PART
MARKING
TEMP
RANGE
(°C)
PACKAGE PKG.
(Pb-Free) DWG. #
ISL62381HRTZ 62381 HRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A
ISL62382HRTZ 62382 HRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A
ISL62383HRTZ 623 83HRTZ -10 to +100 28 Ld 4x4 TQFN L28.4x4
ISL62381CHRTZ 62381 CHRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A
ISL62382CHRTZ 62382 CHRTZ -10 to +100 32 Ld 5x5 TQFN L32.5x5A
ISL62383CHRTZ 62383 CHRTZ -10 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. For Moisture Sensitivity Level (MSL), please see device information
page for ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C,
ISL62383C. For more information on MSL please see techbrief TB363.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2008, 2011. All Rights Reserved
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.
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