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ISL6559CBZ is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Renesas Electronics Corporation. Its product description is IC REG CTRLR BUCK 28SOIC. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for ISL6559CBZ
- Description：IC REG CTRLR BUCK 28SOIC
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Output Type：PWM Signal
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：4
- Output Phases：4
- Voltage - Supply (Vcc/Vdd)：4.75V ~ 5.25V
- Frequency - Switching：80kHz ~ 1MHz
- Duty Cycle (Max)：75%
- Synchronous Rectifier：-
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Frequency Control, Power Good
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：28-SOIC
- Grade：-
- Qualification：-
DC DC Switching Controllers datasheet and documents for ISL6559CBZ
DC DC Switching Controllers Overview
The ISL6559CBZ is a multi-phase PWM controller designed for step-down DC-DC conversion applications. It supports up to four output phases with a switching frequency range of 80 kHz to 1 MHz. The device operates within an ambient temperature range of 0°C to +70°C and utilizes a 28-pin SOIC package. It functions as a positive output buck regulator controller, providing precise voltage regulation for high-current loads in server and workstation environments.
DC DC Switching Controllers Feature Summary
- Multi-phase PWM control architecture for balanced current sharing
- Integrated step-down function for efficient voltage regulation
- Wide switching frequency range for optimized component size
DC DC Switching Controllers Applications
- Server power supply systems
- Workstation motherboard VRMs
- High-performance computing platforms
DC DC Switching Controllers Procurement Notes
Verify component authenticity through authorized distributors due to obsolete status. Confirm package integrity and moisture sensitivity handling requirements prior to assembly. Cross-reference datasheet revisions to ensure compatibility with existing design specifications and thermal management strategies.
DC DC Switching Controllers Selection Notes
Evaluate phase count requirements against load current demands. Ensure input voltage ranges match system bus specifications. Consider thermal dissipation capabilities of the 28-SOIC package relative to enclosure constraints. Validate control loop stability with selected external components.
DC DC Switching Controllers Part Context
Part of the Renesas ISL6559 series, this controller targets high-efficiency power delivery for digital processors. It integrates essential protection features and timing controls required for modern CPU/GPU power stages, replacing older single-phase solutions with scalable multi-phase designs.
DC DC Switching Controllers Replacement Considerations
Consult official discontinuation notices for qualified substitute part numbers. Verify pinout compatibility and electrical parameter alignment before transitioning to alternative controllers from the same manufacturer family.
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