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Product Detailed Parameters
- Description：IC REG BUCK BOOST 12V 1.5A 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up, Step-Down
- Output Configuration：Positive or Negative
- Topology：Buck, Boost
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：2V
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：12V
- Voltage - Output (Max)：-
- Current - Output：1.5A (Switch)
- Frequency - Switching：19kHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 70°C (TA)
- 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 LT1108CS8-12#PBF is a micropower DC/DC converter manufactured by Analog Devices Inc. in an 8-pin SOIC package. It provides a fixed 12V output with a maximum current of 0.4A. The device operates from a supply voltage range of 2V to 30V, supporting step-up, step-down, and inverting topologies. Key electrical parameters include a quiescent current of 110µA and a switching frequency of 19kHz. It requires only four external components for operation.
Feature Summary
- Supports versatile DC/DC conversion modes including step-up, step-down, and inverting configurations.
- Requires only four external components to deliver fixed output voltages.
- Operates efficiently across a wide input voltage range suitable for battery-powered applications.
Applications
- Portable instrumentation power supplies
- Battery-operated systems requiring voltage inversion or regulation
- Low-power embedded logic circuits
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the fixed 12V output variant aligns with your system design needs rather than adjustable versions.
Selection Notes
Select this component for applications requiring a simple, low-component-count solution for converting single-cell or multi-cell battery voltages. Consider the 19kHz switching frequency for EMI-sensitive designs and verify thermal performance under maximum load conditions within the specified temperature range.
Part Context
This part belongs to the LT1108 family of micropower DC/DC converters. It shares functional similarities with other variants like the LT1108CS8-5 but differs in its fixed output voltage specification. The family is designed for high efficiency in space-constrained portable electronics.
Replacement Considerations
Direct substitutes may include other parts from the LT1108 series with compatible pinouts and electrical characteristics. Verify that alternative components support the same 12V fixed output and 0.4A current capability.
