LT1173CN8#PBF

Overview

The LT1173CN8#PBF is a versatile micro-power DC-DC converter manufactured by Analog Devices Inc. It supports step-up, step-down, and inverting topologies within an 8-pin PDIP package. The device operates with input voltages ranging from 2V to 30V and provides fixed outputs of 5V or 12V, or adjustable outputs between 1.25V and 50V. It delivers up to 0.4A output current with a switching frequency of 23kHz. The component functions effectively in applications requiring low quiescent current and minimal external components.

Feature Summary

• Supports multiple conversion modes including boost, buck, and inverting configurations
• Operates with wide input voltage range suitable for battery-powered systems
• Requires only three external components for fixed output implementations

Applications

• Battery-powered portable devices requiring voltage regulation
• LCD bias generator circuits
• Neon light flasher drivers

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and standard tube packaging when ordering. Confirm the 8-pin PDIP physical dimensions match your PCB footprint requirements. Ensure the operating temperature range of 0°C to 70°C aligns with your environmental conditions. Cross-reference the manufacturer part number LT1173CN8#PBF with official Analog Devices documentation to confirm availability and revision status before finalizing procurement plans.

Selection Notes

Select this component when a single IC must handle diverse DC-DC conversion tasks such as stepping up low battery voltages or stepping down higher supply rails. It is suitable for designs prioritizing low static current consumption and simplified bill of materials due to its minimal external component count. Consider the 23kHz switching frequency for applications where electromagnetic interference is less critical than cost and simplicity.

Part Context

The LT1173 series represents a family of high-efficiency switching regulators designed for micro-power applications. The CN8 variant specifically denotes the commercial temperature grade housed in a plastic dual in-line package. This series is widely used in industrial and consumer electronics where reliable power management from varying input sources is required without complex control circuitry.

Replacement Considerations

LT1173CN8-12#PBF is a confirmed substitute offering a fixed 12V output configuration.