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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.5A 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.5V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1.27V
- Voltage - Output (Max)：38V
- Current - Output：1.5A
- Frequency - Switching：520kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The CS51414EDR8 is a synchronous step-down switching regulator manufactured by onsemi, designed for high-efficiency power conversion in compact applications. It operates with an input voltage range of 4.5 V to 40 V and delivers a continuous output current of 1.5 A. The device features an adjustable output voltage ranging from 1.27 V to 38 V, controlled via a fixed internal switching frequency of 520 kHz. Packaged in an 8-SOIC surface-mount footprint, it supports operation across an extended junction temperature range of -40°C to +150°C, ensuring reliability in demanding thermal environments.
Feature Summary
- Synchronous rectification architecture for enhanced efficiency
- Integrated power switch eliminates external component requirements
- Fixed 520 kHz switching frequency enables compact passive design
Applications
- Industrial point-of-load regulation
- Automotive infotainment systems
- Communication equipment power distribution
Procurement Notes
Verify the specific suffix 'EDR8' against official datasheets to confirm package dimensions and marking codes. Confirm RoHS compliance status as manufacturing updates may alter environmental declarations. Validate lead-free soldering compatibility with your assembly process specifications before integration.
Selection Notes
Select this component when a wide input voltage range up to 40 V is required alongside high output current capability. The integrated synchronous design reduces bill of materials compared to non-synchronous alternatives. Ensure thermal management strategies account for the 150°C maximum junction temperature rating during peak load conditions.
Part Context
This part belongs to the CS51414 family of buck regulators, sharing core control logic with variants like the CS51414GDR8G. Differences typically involve packaging options or specific automotive qualification grades. The EDR8 designation specifically denotes the SOIC-8 narrow body package configuration used in standard industrial electronics.
Replacement Considerations
The CS51414EDR8G is documented as a parameter-equivalent alternative within the same product family. Verify pinout compatibility and thermal performance characteristics before substitution.
