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Product Detailed Parameters
- Description：IC REG CUK ADJ 750MA 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Negative
- Topology：Cuk
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：1V
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：-1.24V
- Voltage - Output (Max)：-24V
- Current - Output：750mA (Switch)
- Frequency - Switching：600kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
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Overview
The LT1614IS8#TRPBF is a Cuk topology switching regulator manufactured by Analog Devices Inc., designed for generating negative output voltages. It operates with an input voltage range from 1V to 6V and provides an adjustable negative output ranging from -1.24V to -24V. The device supports a maximum switch current of 750mA and functions at a fixed switching frequency of 600kHz. Packaged in an 8-SOIC surface-mount case, it is rated for operation within a temperature range of -40°C to +85°C.
Feature Summary
- Implements Cuk converter topology to provide inverted output polarity
- Supports wide input voltage range suitable for single-cell battery applications
- Integrates internal power switch for compact board space utilization
Applications
- Portable instrumentation requiring negative supply rails
- Battery-powered devices needing efficient voltage inversion
- General-purpose negative DC-DC conversion circuits
Procurement Notes
Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm that the IS8 designation corresponds to the industrial temperature grade and SOIC-8 package variant. Ensure compatibility with standard surface-mount assembly processes for 8-pin small outline integrated circuits.
Selection Notes
Select this component when a negative output voltage is required from a low-voltage positive source. The Cuk topology offers continuous input and output currents, which may reduce input filtering requirements compared to other topologies. Consider the 600kHz switching frequency regarding external inductor and capacitor sizing constraints.
Part Context
This part belongs to the LT1614 family of switching regulators. It shares the core controller architecture with variants such as the LT1614CS8#PBF, differing primarily in temperature rating and packaging format. The IS8 suffix denotes the industrial temperature range and plastic SOIC package.
Replacement Considerations
LT1614CS8#PBF serves as a direct alternative with commercial temperature grading.
