LT1109CS8-5#TRPBF

$3.43

Description：IC REG BOOST 5V 1.2A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:36f177b2fd47 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BOOST 5V 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)：3V
Voltage - Input (Max)：20V
Voltage - Output (Min/Fixed)：5V
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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LT1109CS8-5#TRPBF

Overview

The LT1109CS8-5#TRPBF is a micropower low-cost DC/DC converter manufactured by Analog Devices Inc. It utilizes a boost topology to step up input voltages ranging from 1.6 V to 20 V to a fixed 5 V output. The device supports an output current of 1 A and operates with a switching frequency of 120 kHz. It features a low quiescent current of 32 uA and a maximum static current of 320 uA. The component is housed in an SOIC-8 package, supports surface mount installation, includes shutdown functionality, and functions within a temperature range of 0°C to +70°C.

Feature Summary

Boost topology for stepping up low input voltages
Micropower operation with low quiescent current
Integrated shutdown control capability

Applications

Battery-powered portable equipment
Flash memory VPP generators
General-purpose DC/DC conversion

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official documentation. Ensure the supplier provides valid traceability data. Cross-reference the manufacturer part number against official Analog Devices databases to avoid counterfeit components. Validate that the received units match the specified SOIC-8 package dimensions.

Selection Notes

Select this component for applications requiring a simple boost converter solution with minimal external components. It is suitable for designs needing a fixed 5 V output from variable or low input sources. Consider the 1 A output current limit and 120 kHz switching frequency during thermal and layout planning. Verify compatibility with the required operating temperature range for the target environment.

Part Context

This part belongs to the LT1109 series of micropower DC/DC converters. It shares the core boost architecture with variants like LT1109CS8-5#PBF, differing primarily in packaging format. The series is designed for cost-sensitive applications requiring efficient voltage step-up capabilities in compact surface-mount packages.