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Product Detailed Parameters
- Description：IC REG BUCK BOOST ADJ 1.5A 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tube
- Function：Step-Up
- Output Configuration：Negative
- Topology：Buck, Boost, Flyback, Forward Converter, SEPIC
- 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：560kHz
- 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 CS5174GD8 is a negative boost regulator IC manufactured by onsemi, designed for high-efficiency power conversion. It supports an input voltage range from 2.7 V to 30 V and delivers a switch current of 1.5 A. The device operates at a fixed switching frequency of 560 kHz and features adjustable output voltage capability. It utilizes current-mode control with pulse width modulation technology. The component is housed in an 8-SOIC narrow body package and is rated for junction temperatures between 0°C and 125°C.
Feature Summary
- Negative boost topology for generating inverted output voltages
- Current-mode control architecture for stable regulation
- Integrated 1.5 A power switch for compact designs
- Fixed 560 kHz switching frequency
Applications
- Portable electronics requiring negative rail generation
- LCD bias voltage supplies
- Industrial control systems with single-supply inputs
- Battery-powered devices needing voltage inversion
Procurement Notes
Verify the specific suffix GD8 against the official datasheet to confirm package type and lead-free status. Confirm availability as this part may be discontinued or subject to lifecycle changes. Ensure compatibility with existing PCB footprints for SOIC-8 packages. Check for RoHS compliance documentation if required for your manufacturing process.
Selection Notes
Select this component when a negative output voltage is required from a positive input source. It is suitable for applications needing up to 1.5 A of switch current. Consider the 560 kHz frequency for balancing efficiency and external component size. Ensure the input voltage stays within the 2.7 V to 30 V range for proper operation.
Part Context
The CS5174 belongs to onsemi's family of high-efficiency switching regulators. It is part of the CS517x series, which includes variants like the CS5173 and CS5174. These devices are designed for space-constrained applications requiring reliable DC-DC conversion. The GD8 suffix typically denotes the SOIC-8 package variant.
Replacement Considerations
Check for direct pin-compatible replacements such as the CS5174EDR8G if available. Verify electrical parameters match exactly before substitution. Consult onsemi for updated lifecycle information and recommended alternative parts.
