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ISL6557ACB-T is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Intersil. Its product description is SWITCHING CONTROLLER, VOLTAGE-MO. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for ISL6557ACB-T
- Description：SWITCHING CONTROLLER, VOLTAGE-MO
- Series：-
- Mfr：Intersil
- Package：Bulk
- 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 ~ 1.5MHz
- Duty Cycle (Max)：75%
- Synchronous Rectifier：-
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Power Good
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：24-SOIC
- Grade：-
- Qualification：-
DC DC Switching Controllers datasheet and documents for ISL6557ACB-T
DC DC Switching Controllers Overview
The ISL6557ACB-T is a multi-phase PWM controller designed for core-voltage regulation. It drives up to four interleaved synchronous-rectified buck-converter channels in parallel. The device operates with a supply voltage range of 4.75V to 5.25V. Its switching frequency is adjustable from 80kHz to 1.5MHz. The component utilizes a 24-SOIC package topology.
DC DC Switching Controllers Feature Summary
- Provides core-voltage regulation by driving multiple interleaved synchronous-rectified buck-converter channels
- Supports up to four output phases for high-current applications
- Features adjustable switching frequency capability across a wide range
DC DC Switching Controllers Applications
- CPU core voltage regulation
- Multi-phase power delivery systems
- High-performance computing platforms
DC DC Switching Controllers Procurement Notes
Verify the specific suffix 'T' indicates tape and reel packaging configuration when sourcing. Confirm the manufacturer designation as Intersil or Renesas Electronics America depending on the supply chain source. Ensure the datasheet version matches the production batch requirements for compatibility with existing control loops.
DC DC Switching Controllers Selection Notes
Select this component when designing power stages requiring four-phase interleaving for reduced input ripple current. Consider the 24-SOIC footprint constraints during PCB layout. Evaluate the maximum duty cycle limitations against the target output voltage requirements relative to the input rail.
DC DC Switching Controllers Part Context
This part belongs to the Intersil family of multi-phase PWM controllers. It is functionally related to variants such as the ISL6557ACBZ, differing primarily in packaging format. The series targets server and workstation processor power management solutions.
DC DC Switching Controllers Replacement Considerations
The ISL6557ACBZ is a documented alternative variant within the same product line. Verify pinout compatibility and thermal performance differences before substitution.
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