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ISL6545 Datasheet (PDF) - Intersil Corporation

ISL6545 Datasheet PDF - Intersil Corporation
Part # ISL6545
Download  ISL6545 Download

File Size   369.25 Kbytes
Page   16 Pages
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation
Description 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

ISL6545 Datasheet (PDF)

Go To PDF Page Download Datasheet
ISL6545 Datasheet PDF - Intersil Corporation

Part # ISL6545
Download  ISL6545 Click to download

File Size   369.25 Kbytes
Page   16 Pages
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation
Description 5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

ISL6545 Datasheet (HTML) - Intersil Corporation

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ISL6545 Product details

The ISL6545 makes simple work out of implementing a
complete control and protection scheme for a DC/DC stepdown
converter driving N-Channel MOSFETs in a synchronous buck
topology. Since it can work with either 5V or 12V supplies, this
one IC can be used in a wide variety of applications within a
system. The ISL6545 integrates the control, gate drivers, output
adjustment, monitoring and protection functions into a single
8 Ld SOIC or 10 Ld DFN package.
The ISL6545 provides single feedback loop, voltage-mode
control with fast transient response. The output voltage can be
precisely regulated to as low as 0.6V, with a maximum
tolerance of ±1.0% over-temperature and line voltage
variations. A selectable fixed frequency oscillator (ISL6545 for
300kHz; ISL6545A for 600kHz) reduces design complexity,
while balancing typical application cost and efficiency.
The error amplifier features a 20MHz gain-bandwidth
product and 9V/µs slew rate which enables high converter
bandwidth for fast transient performance. The resulting
PWM duty cycles range from 0% to 100%.
Protection from overcurrent conditions is provided by
monitoring the rDS(ON) of the lower MOSFET to inhibit PWM
operation appropriately. This approach simplifies the
implementation and improves efficiency by eliminating the
need for a current sense resistor.

Features
• Operates from +5V or +12V Supply Voltage (for bias)
- 1.0V to 12V VIN Input Range (up to 20V possible with
restrictions; see Input Voltage Considerations)
- 0.6V to VIN Output Range
- Integrated Gate Drivers use VCC (5V to 12V)
- 0.6V Internal Reference; ±1.0% tolerance
• Simple Single-Loop Control Design
- Voltage-Mode PWM Control
- Drives N-Channel MOSFETs
- Traditional Dual Edge Modulator
• Fast Transient Response
- High-Bandwidth Error Amplifier
- Full 0% to 100% Duty Cycle
• Lossless, Programmable Overcurrent Protection
- Uses Lower MOSFET’s rDS(ON)
• Small Converter Size in 8 Ld SOIC or 10 Ld DFN
- 300kHz or 600kHz Fixed Frequency Oscillator
- Fixed Internal Soft-Start, Capable into a Pre-biased
Load
- Integrated Boot Diode
- Enable/Shutdown Function on COMP/SD Pin
- Output Current Sourcing and Sinking
• Pb-Free (RoHS Compliant)

Applications
• Power Supplies for Microprocessors or Peripherals
- PCs, Embedded Controllers, Memory Supplies
- DSP and Core Communications Processor Supplies
• Subsystem Power Supplies
- PCI, AGP; Graphics Cards; Digital TV
- SSTL-2 and DDR/DDR2/DDR3 SDRAM Bus
Termination Supply
• Cable Modems, Set Top Boxes, and DSL Modems
• Industrial Power Supplies; General Purpose Supplies
• 5V or 12V-Input DC/DC Regulators
• Low-Voltage Distributed Power Supplies




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About Intersil Corporation


Intersil Corporation was an American semiconductor company that specialized in the design and manufacture of high-performance analog and mixed-signal integrated circuits.
The company was founded in 1967 and was known for its expertise in power management, data conversion, and radio frequency (RF) technologies.
Intersil's products were used in a wide range of applications such as consumer electronics, industrial, telecommunications, and aerospace and defense.
In 2016, Intersil was acquired by Renesas Electronics Corporation, a Japanese semiconductor company.
The Intersil brand and technology continue to be developed and sold as part of Renesas' portfolio of products.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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