LT1109ACS8#PBF

$8.30

Description：IC REG BOOST ADJ 2A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:612b70be2c44 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BOOST ADJ 2A 8SO
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Up
Output Configuration：Positive
Topology：Boost
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：2V
Voltage - Input (Max)：9V
Voltage - Output (Min/Fixed)：1.25V
Voltage - Output (Max)：50V (Switch)
Current - Output：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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LT1109ACS8#PBF

Overview

The LT1109ACS8#PBF is a micropower DC/DC converter manufactured by Analog Devices Inc., housed in an 8-pin SOIC package. It operates as a boost topology switching regulator with an input voltage range of 2 V to 9 V and delivers up to 1 A output current. The device features adjustable output voltage, a fixed switching frequency of 120 kHz, and a typical quiescent current of 360 uA. It supports shutdown functionality and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

Micropower operation with low quiescent current for battery efficiency
Integrated boost DC/DC converter requiring minimal external components
Adjustable output voltage capability for flexible design applications

Applications

Flash memory VPP generation
PCMCIA Type I or Type II card power supplies
General purpose step-up DC/DC conversion

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the adjustable output variant meets your circuit design needs rather than fixed voltage versions. Check availability status as distribution may vary by region.

Selection Notes

Select this component when a compact, low-power boost converter is required for flash memory programming voltages. The adjustable output allows customization for specific VPP levels. Consider the 120 kHz switching frequency for EMI constraints. Compare against fixed-output variants like the -5 or -12 suffixes if standard voltages suffice.

Part Context

This part belongs to the LT1109A series of micropower DC/DC converters designed for space-constrained applications. It shares core architecture with other LT1109 variants but differs in packaging and output configuration. The series is commonly used in portable electronics and memory systems requiring efficient voltage stepping.