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Product Detailed Parameters
- Description：IC REG MULT CONFIG 5V 0.7A 8SOIC
- Series：*
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：-
- Output Configuration：-
- Topology：-
- Output Type：-
- Number of Outputs：-
- Voltage - Input (Min)：-
- Voltage - Input (Max)：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：-
- Frequency - Switching：-
- Synchronous Rectifier：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The LT1501CS8-5 is an adaptive-frequency current mode switching regulator manufactured by Analog Devices Inc. in an 8-pin SOIC package. It provides a fixed 5V output with a maximum current capability of 0.7A. The device operates from a minimum input voltage of 1.8V typical and supports switching frequencies up to 500kHz. Key features include low-battery comparator functionality active during shutdown and compatibility with boost, Cuk, and flyback converter topologies.
Feature Summary
- Adaptive-frequency current mode control for optimized efficiency across load ranges
- Low-battery comparator remains active in shutdown state for system monitoring
- Supports multiple converter configurations including boost, Cuk, and flyback
Applications
- Portable battery-powered equipment requiring efficient step-up conversion
- Systems utilizing Cuk or flyback topology for isolated or inverted outputs
- Applications requiring low-battery detection during power-down states
Procurement Notes
Verify the complete part number LT1501CS8-5#PBF against official Analog Devices documentation to confirm pinout and electrical specifications. Ensure the 8-SOIC package matches your PCB footprint requirements. Cross-reference datasheet revision dates to validate feature availability, particularly regarding the low-battery comparator behavior in shutdown mode.
Selection Notes
Select this component when a fixed 5V output at 0.7A is required from inputs as low as 1.8V. The adaptive frequency operation makes it suitable for variable load applications where efficiency optimization is critical. Consider the 8-SOIC package constraints for thermal management and board space. Verify that the specific -5 suffix corresponds to the 5V fixed output variant rather than adjustable versions.
Part Context
The LT1501 belongs to Linear Technology's family of adaptive-frequency current mode switching regulators. This series includes variants like the LT1500 and LT1502, offering different pin counts and feedback options. The CS8-5 designation indicates the commercial temperature range, SOIC-8 package, and 5V fixed output configuration within this product line.
Replacement Considerations
LT1501CS8-3.3 offers identical functionality with a 3.3V fixed output instead of 5V. LT1501IS8 provides the same electrical characteristics but in an industrial temperature range. LT1500IS-3/5 is a related 14-pin SOIC variant supporting additional negative voltage feedback.
