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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1A 10MSOP
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.5V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：5.5V
- Current - Output：1A
- Frequency - Switching：1.4MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-MSOP
- Grade：-
- Qualification：-
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Overview
The EL7531IYZ is a monolithic synchronous step-down voltage regulator manufactured by Renesas Electronics Corporation. It integrates power FETs and operates with an input voltage range of 2.5V to 5.5V, delivering an adjustable output voltage from 800mV to 5.5V. The device supports a continuous output current of 1A with a switching frequency of 1.6MHz. It features internal compensation for stability and offers load regulation of 0.4%. The component is housed in a 10-MSOP package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates synchronous power FETs for high efficiency
- Includes internal compensation circuitry
- Supports adjustable output voltage configuration
Applications
- Portable battery-powered equipment
- Point-of-load regulation modules
- Embedded systems power supplies
Procurement Notes
Verify the obsolete status of this part number before design finalization. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing supply chain constraints due to discontinuation. Validate RoHS compliance documentation for regulatory adherence. Check moisture sensitivity level handling requirements during assembly.
Selection Notes
Select this component for applications requiring a compact 1A buck solution with integrated FETs. Consider the 1.6MHz switching frequency for smaller passive component sizes. Evaluate the 2.5V to 5.5V input range against system power rails. Assess the MSOP-10 package constraints for PCB layout. Review thermal performance at maximum load currents.
Part Context
This device belongs to the EL7531 series of monolithic step-down regulators. It shares architectural similarities with other members like the EL7530 and EL7534, which offer different current ratings. The series focuses on integrating control logic and power stages into a single small footprint. This integration simplifies design complexity for low-power DC-DC conversion tasks.
Replacement Considerations
Direct substitutes include the EL7531IYZ-T7 and EL7531IYZ-T13 variants, which share identical electrical specifications but differ in packaging format.
