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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),Bulk
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：1.28V
- Voltage - Output (Max)：40V (Switch)
- Current - Output：1.5A (Switch)
- Frequency - Switching：280kHz
- Synchronous Rectifier：No
- Operating Temperature：0°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 CS5171GDR8G is a positive boost switching regulator IC manufactured by onsemi. It operates with an input voltage range of 2.7 V to 30 V and delivers a maximum switch current of 1.5 A. The device features an adjustable output voltage from 1.28 V up to 40 V. It utilizes current-mode control with pulse width modulation at a fixed switching frequency of 280 kHz. The component is housed in an 8-SOIC package and supports junction temperatures from 0°C to 125°C.
Feature Summary
- Implements current-mode control architecture for stable regulation
- Provides adjustable output voltage capability within specified limits
- Integrates a 1.5 A power switch for high-current applications
Applications
- Battery-powered systems requiring voltage step-up
- Portable electronic devices needing efficient DC-DC conversion
- Industrial equipment utilizing wide input voltage ranges
Procurement Notes
Verify the specific suffix GDR8G against the official datasheet to confirm pinout and packaging details. Ensure the source document confirms RoHS compliance status for the exact revision. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.
Selection Notes
Select this component when a positive boost topology is required with an input range extending up to 30 V. The 1.5 A switch current rating suits moderate power applications. Consider the 280 kHz frequency for balancing efficiency and external component size. Verify that the SOIC-8 package fits the thermal and spatial constraints of the design.
Part Context
This device belongs to the CS5171/72/73 family of boost regulators from onsemi. While the CS5171 provides positive output, related models like the CS5172 offer negative polarity options. The family shares similar control architectures but differs in output configuration and specific electrical characteristics defined in their respective datasheets.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide or contact technical support for validated alternatives.
