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Product Detailed Parameters
- Description：IC REG BOOST 12V 1.2A 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：5V
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：12V
- Voltage - Output (Max)：-
- Current - Output：1.2A (Switch)
- Frequency - Switching：120kHz
- 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 LT1109CS8-12#TRPBF is a micropower DC/DC converter manufactured by Analog Devices Inc. It operates as a boost topology switching regulator with a fixed 12V output and a maximum output current of 1A. The device accepts an input voltage range from 2V to 9V and draws a typical quiescent current of 360uA. It functions at a switching frequency of 120kHz and supports operation within a temperature range of 0°C to +70°C. The component is housed in an SOIC-8 surface-mount package.
Feature Summary
- Integrated 1A power switch for efficient step-up conversion
- Micropower operation suitable for battery-powered applications
- Fixed 12V output configuration simplifies circuit design
Applications
- Flash memory VPP generation
- PCMCIA Type I or Type II card power supplies
- General purpose DC/DC step-up conversion
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the manufacturer part number matches exactly, as Analog Devices uses distinct suffixes for different packaging formats. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.
Selection Notes
Select this component when a fixed 12V output is required from a 2V to 9V input source. It is appropriate for designs prioritizing low quiescent current consumption. Consider the SOIC-8 package constraints for PCB layout. Verify that the 1A output current capability meets the load requirements of the target application.
Part Context
This part belongs to the LT1109 series of micropower DC/DC converters. The series includes adjustable and fixed voltage versions designed for space-saving applications. The LT1109 family typically requires minimal external components to function, making it suitable for compact electronic designs where board area is limited.
Replacement Considerations
LT1109ACS8-12#PBF is a verified substitute offering identical electrical performance but in tube packaging instead of tape and reel.
