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Product Detailed Parameters
- Description：IC REG BUCK ADJ/1V 5A
- Series：EL7563
- Mfr：Elantec
- Package：Bulk
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable (Fixed)
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：3.6V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：2.5V
- Current - Output：5A
- Frequency - Switching：Adj to 1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The EL7563CM is a synchronous step-down regulator delivering 4A continuous current with up to 95% efficiency. It operates on a 3V to 3.6V input, providing an adjustable output voltage from 1.0V to 2.5V. The device features integrated synchronous MOSFETs and patented resistorless current sensing for cycle-by-cycle current limiting. It supports switching frequencies up to 1MHz with oscillator synchronization. Protection includes over-voltage, over-temperature, under-voltage lockout, and a junction temperature indicator. The component is housed in a 20-pin SO package.
Feature Summary
- Integrated synchronous MOSFETs and current mode controller
- Patented on-chip resistorless current sensing
- Multiple supply start-up tracking capability
- Junction temperature indicator
Applications
- Desktop applications
- Portable applications
Procurement Notes
Verify the manufacturer designation carefully, as Elantec was acquired by Intersil, which was subsequently acquired by Renesas. Ensure the datasheet corresponds to the specific EL7563CM variant. Confirm package type and RoHS compliance status against the latest official documentation before procurement.
Selection Notes
Select this component for designs requiring high efficiency and compact solutions within a narrow input voltage range. It is suitable for systems needing precise output regulation and multiple supply sequencing. Consider thermal management requirements due to the integrated power stage and verify compatibility with external synchronization signals if used.
Part Context
This part belongs to the EL7563 family of synchronous buck regulators. It shares core functionalities with other variants like the EL7563HM but differs in package configuration. The CM suffix typically denotes a specific package style and operating temperature range compared to other suffixes in the same product line.
Replacement Considerations
Check for direct pin-compatible alternatives from Renesas or Intersil. Verify that any substitute maintains the 4A current rating and 3V-3.6V input range. Ensure equivalent protection features and control architecture are present.
