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Product Detailed Parameters
- Description：IC REG BOOST ADJ 1.5A 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tube
- 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 CS5172ED8 is a high-efficiency boost regulator manufactured by onsemi, designed for applications requiring adjustable output voltage. It supports an input voltage range from 2.7 V to 30 V and delivers a continuous output current of 1.5 A. The device operates with selectable switching frequencies of 280 kHz or 560 kHz, allowing optimization for efficiency or component size. It features a wide operating temperature range from -40°C to +125°C and is housed in an 8-SOIC package.
Feature Summary
- Integrated power switch capable of delivering 1.5 A output current
- Selectable switching frequency for design flexibility
- Wide input voltage range supporting various supply sources
- Adjustable output voltage via external resistor network
Applications
- Portable battery-powered equipment
- Automotive electronics systems
- Industrial control modules
- General-purpose DC-DC conversion stages
Procurement Notes
Verify the specific suffix (ED8 vs EDR8G) against the manufacturer's official datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering code matches the required packaging format. Cross-reference the part number with the latest onsemi documentation to confirm current production status and availability constraints before finalizing procurement plans.
Selection Notes
Select this component when a non-synchronous boost topology is sufficient for the load requirements. Consider the thermal performance within the SOIC-8 package under maximum load conditions. Evaluate the external inductor selection based on the chosen switching frequency to balance size and ripple current. Verify that the input voltage source remains stable within the specified 2.7 V to 30 V range during operation.
Part Context
This device belongs to onsemi’s family of high-efficiency boost regulators. It shares functional similarities with the CS5173 and CS5174 series, which offer variations in switching frequency and feature sets. These components are commonly used in power management integrated circuits (PMIC) designs where space-constrained solutions are required for step-up voltage conversion.
Replacement Considerations
The CS5173EDR8G and CS5174EDR8 are related parts within the same product family. Verify electrical parameter differences, such as switching frequency options, before substitution. Confirm that the pinout and package dimensions are identical to ensure mechanical compatibility in existing PCB layouts.
