概要
説明
ISL6420BEVAL1Z (20 Ld QFN) and the ISL6420BEVAL2Z (20 Ld QSSOP) evaluation boards are used to evaluate the ISL6420B advanced single synchronous buck PWM controller. They are configured for an output voltage of 3.3V and 10A maximum load.
The ISL6420B simplifies the implementation of a complete control and protection scheme for a high performance DC/DC buck converter. The IC can be operated with an input voltage range from 4.5V to 5.5V or 5.5V to 28V. It is designed to drive N-channel MOSFETs in a synchronous rectified buck topology. The control, output adjustment, monitoring, and protection functions are all integrated into a single package.
特長
- Input voltage range: 4.5V to 5.5V or 5.5V to 28V
- 0.6V internal reference voltage: ±2.0% reference accuracy
- Resistor-selectable switching frequency: 100kHz to 1.4MHz
- Voltage margining and external reference tracking modes
- Output can sink or source current
- Lossless, programmable overcurrent protection: Uses upper MOSFET's rDS(ON)
- Programmable soft-start
- Drives N-channel MOSFETs
- Simple single-loop control design: Voltage-mode PWM control
- Fast transient response: High-bandwidth error amplifier, full 0% to 100% duty cycle
- Extensive circuit protection functions: PGOOD, overvoltage, overcurrent, shutdown
- Diode emulation during startup for pre-biased load applications
アプリケーション
- Power supplies for microprocessors/ASICsEmbedded controllers
- DSP and core processors
- DDR SDRAM bus termination
- Ethernet routers and switchers
- High-power DC/DC regulators
- Distributed DC/DC power architecture
- Personal computer peripherals
- Externally referenced buck converters
Processing table
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product