LT1109ACN8-5#PBF

Overview

The LT1109ACN8-5#PBF is a switching regulator IC from Analog Devices, designed primarily for generating flash memory programming voltages. It integrates a DC/DC converter with adjustable output capabilities. The component operates in a through-hole PDIP-8 package and supports supply voltages typical for 5V systems. It functions as a step-up or boost converter to generate the necessary high voltage for memory device programming applications.

Feature Summary

• Integrates a complete switching regulator circuit for efficient power conversion
• Provides adjustable output voltage suitable for various memory programming requirements
• Includes internal switching element to minimize external component count
• Designed specifically for flash memory Vpp generation applications

Applications

• Flash memory programming voltage generation
• Embedded system power management for non-volatile memory
• Industrial control systems requiring memory backup power
• Consumer electronics with flash storage components

Procurement Notes

Verify the specific suffix and package type against the official Analog Devices datasheet to ensure compatibility with existing board layouts. Confirm that the AC grade temperature range meets the operational environment requirements. Check current availability status as distribution may be limited. Ensure that the supplier provides valid traceability documentation for quality assurance purposes before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require dedicated flash memory programming voltages. Consider the PDIP-8 package for prototyping or low-volume production where surface mount options are not feasible. Evaluate the thermal performance within the enclosed application space. Compare against alternative regulators if specific efficiency or size constraints differ from standard design parameters.

Part Context

This part belongs to the LT1109 series of switching regulators manufactured by Analog Devices. It is distinct from linear regulators due to its switching architecture, which offers higher efficiency for voltage boosting applications. The series is widely used in legacy and industrial designs involving parallel flash memory technologies. It represents a specialized solution for power management in embedded memory contexts.

Replacement Considerations

Consult the official Analog Devices cross-reference guide for verified substitutes. Direct replacements must match the PDIP-8 package and switching regulator functionality. Verify pinout compatibility to avoid redesigning the PCB layout. Ensure that any substitute component meets the same electrical specifications for flash memory programming applications.