Multi-Purpose Precision Multiphase PWM Controller Evaluation Board
The ISL6558EVAL2 is a low-profile, 5V/12V input, 500kHz, and 90% efficiency DC/DC converter evaluation board. It is used to evaluate the ISL6558 multi-purpose precision...
Overview
Description
The ISL6558 is a multi-phase PWM controller, which in combination with the HIP6601B, HIP6602B, HIP6603B, or ISL6605 companion gate drivers form a complete solution for high-current, high slew-rate applications. The ISL6558 regulates output voltage, balances load currents and provides protective functions for two to four synchronous rectified buck converter channels. A novel approach to current sensing is used to reduce overall solution cost and improve efficiency. The voltage developed across the lower MOSFET during conduction is sampled and fed back to the controller. This lossless current-sensing approach enables the controller to maintain phase-current balance between the power channels, provide overcurrent protection, and permit droop compensation. Optional output voltage droop or active voltage positioning is supported via the DROOP pin. Taking advantage of this feature reduces the size and cost of the output capacitors required to support a load transient. In the event of an overvoltage, the controller monitors and responds to reduce the risk of damage to load devices. Undervoltage conditions are indicated through a PGOOD transition. Overcurrent conditions cause the converter to shutdown limiting the exposure of load devices. These integrated monitoring and protection features provide a safe environment for microprocessors and other advanced low voltage circuits.
Features
- Pb-Free Available (RoHS Compliant)
- Multi-Phase Power Conversion
- 2-, 3-, or 4-Phase Operation
- Optional Output Voltage Droop
- Precision Channel-Current Balance
- Lossless Current Sensing
- Precision Reference Voltage
- 0.8V ± 1.5% Over -40°C - 85°C Range
- 0.8V ± 1.0% Over 0°C - 70°C Range
- Fast Transient Response
- Overcurrent and Overvoltage Protection
- Digital Soft-start
- Power Good Indication
- High Ripple Frequency (80kHz to 1.5MHz)
- QFN Package
- Compliant to JEDEC PUB95 MO-220 QFN-Quad Flat No Leads-Product Outline
- Near Chip-Scale Package Footprint; Improves PCB Efficiency and Thinner in Profile
Comparison
Applications
Applications
- Power Supply Control for Microprocessors
- Low Output Voltage, High Current DC-DC Converters
- Voltage Regulator Modules
- Servers and Workstations
- Memory and Accelerated Graphics Port Supplies
- Communication Processor and Personal Computer Peripherals
Documentation
= Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 898 KB | |
| Other | PDF 1.17 MB | |
| Product Change Notice | PDF 225 KB | |
| Product Change Notice | PDF 207 KB | |
| Product Change Notice | PDF 152 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
| Other | PDF 653 KB | |
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Design & Development
Software & Tools
Software & Tools
| Software title
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Software type
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Company
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|---|---|---|
| iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
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Simulator | Renesas |
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Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
Pkg. Type |
Carrier Type |
Price (USD) | 1ku |
Buy / Sample |
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|---|---|---|---|---|
| Part Number | ||||
ISL6558CBZA Active Samples Available
Buy Now
|
SOICN | Tube | Get Samples, | |
| SOICN | Reel | |||
| QFN | Tube | Get Samples, | ||
| QFN | Reel | |||
| QFN | Tube | Get Samples, | ||
| QFN | Tube | Get Samples, | ||
| QFN | Reel | |||
ISL6558IRZA-TK Active Samples Available |
QFN | Reel | Get Samples, | |
| QFN | Reel | |||
| QFN | Reel | 3.311 |
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