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Product Detailed Parameters
- Description：SWITCHING CONTROLLER
- Series：-
- Mfr：Intersil
- Package：Tube
- Topology：Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs：2
- Frequency - Switching：150kHz ~ 1MHz
- Voltage/Current - Output 1：Controller
- Voltage/Current - Output 2：Controller
- Voltage/Current - Output 3：-
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：4.75V ~ 5.25V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Surface Mount
- Package / Case：16-SSOP (0.154", 3.90mm Width)
- Supplier Device Package：16-QSOP
- Grade：-
- Qualification：-
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Overview
The ISL6549CAZA is a dual regulator power controller featuring a synchronous rectified buck PWM controller and a linear LDO, designed for single 12V input supply applications. It operates within a voltage range of 4.75 V to 5.25 V and supports switching frequencies from 150kHz to 1MHz. The device provides two independent outputs in a 14-SOIC package, suitable for surface mount mounting with an operating temperature range of 0°C to 70°C.
Feature Summary
- Integrates synchronous buck PWM and linear LDO controllers for dual output regulation
- Supports wide switching frequency adjustment from 150kHz to 1MHz
- Designed for single 12V input supply systems
Applications
- Single 12V input supply dual regulator systems
- Synchronous rectified buck power control applications
- Linear power controller implementations
Procurement Notes
Verify the specific suffix 'A' against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the 14-SOIC package dimensions match your PCB footprint requirements. Confirm that the 0°C to 70°C operating temperature range meets your system's environmental constraints before finalizing procurement.
Selection Notes
Select this component when a combined synchronous buck and linear regulation solution is required from a single 12V input. The adjustable switching frequency allows optimization for efficiency or size. Verify that the 14-SOIC package and commercial temperature range align with the target application's physical and thermal design parameters.
Part Context
The ISL6549CAZA belongs to the ISL6549 series of dual regulator power controllers manufactured by Intersil (now Renesas). This family integrates both switching and linear regulation capabilities, offering a compact solution for multi-rail power systems requiring synchronized control from a single input source.
Replacement Considerations
The ISL6549CA and ISL6549CAZ are functionally similar variants within the same series. Verify package compatibility and suffix-specific electrical tolerances before substitution.
