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Product Detailed Parameters
- Description：IC REG BOOST ADJ 1.5A 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up
- Output Configuration：Negative
- Topology：Boost
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：-2.45V
- Voltage - Output (Max)：-40V (Switch)
- Current - Output：1.5A (Switch)
- Frequency - Switching：280kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°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 CS5172EDR8G is a switching voltage regulator manufactured by onsemi, housed in an 8-SOIC package. It supports Boost, Buck, Flyback, Forward, and SEPIC topologies with adjustable negative output voltages ranging from -2.45V to -40V. The device delivers a switch current of 1.5A at a fixed switching frequency of 280kHz. It operates within an input voltage range of 2.7V to 30V and functions across a junction temperature range of 0°C to 125°C.
Feature Summary
- Supports multiple power conversion topologies including boost, buck, flyback, forward, and SEPIC configurations.
- Provides adjustable negative output voltage capability for specialized power supply designs.
Applications
- Negative rail generation in mixed-signal electronic systems
- Power management for industrial control equipment requiring isolated or negative supplies
- Embedded systems utilizing SEPIC or flyback converter architectures
Procurement Notes
Verify component authenticity through authorized distribution channels due to the discontinued status of this part number. Confirm that the specific suffix matches the required pinout and electrical specifications, as variations exist within the CS517x family. Request official datasheets and RoHS compliance documentation prior to integration into production designs to ensure regulatory adherence.
Selection Notes
Select this component when designing circuits requiring a single-chip solution for generating negative voltages from positive sources. Ensure the application demands a 1.5A switch current capacity and operates within the specified 2.7V to 30V input window. Consider thermal performance in the SOIC-8 package if high duty cycles are expected in boost or SEPIC modes.
Part Context
This device belongs to the CS5171/CS5172/CS5173 series of high-efficiency switching regulators. These components share similar architectural features but differ in specific operational parameters and supported topologies. The CS5172 variant specifically targets applications requiring flexible negative output generation across various converter modes.
Replacement Considerations
Public records indicate the CS5172GDR8G as a substitute part number. Verify compatibility regarding package dimensions and electrical characteristics before implementation.
