LT1110CN8-12#PBF

Overview

The LT1110CN8-12#PBF is a micropower DC-DC converter manufactured by Analog Devices, operating within an input voltage range of 1.0V to 30V. It supports both step-up (boost) and step-down (buck) topologies with a fixed 12V output. The device features an internal 1A power switch and operates at a switching frequency of 70kHz. Quiescent current is limited to 300µA, facilitating efficient battery-powered applications. It is housed in an 8-pin MiniDIP package.

Feature Summary

• Operates as a versatile micropower DC-DC converter supporting both step-up and step-down modes
• Requires only three external off-the-shelf components for configuration
• Includes an on-chip auxiliary gain block functioning as a low battery detector or linear post regulator
• Features an internal user-adjustable current limit and a 1A power switch

Applications

• Remote monitoring systems requiring minimal quiescent current
• Battery-powered devices utilizing single-cell primary power sources
• Applications necessitating low-battery detection capabilities
• Space-constrained designs utilizing surface mount components

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the CN8 designation corresponds to the plastic DIP package variant. Ensure compatibility with the required 12V fixed output version. Check manufacturer documentation for any recent product change notices affecting pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component for applications requiring a fixed 12V output from variable inputs between 1V and 30V. The 70kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the LT1111 if higher efficiency is needed for step-down applications with input voltages above 3V, as recommended by the manufacturer for such scenarios.

Part Context

This part belongs to the LT1110 series of micropower DC-DC converters. It shares functional similarities with the LT1111 but is optimized for broader input ranges including very low voltages down to 1.0V. The CN8 package provides a through-hole mounting option suitable for prototyping and industrial environments requiring robust mechanical connections.

Replacement Considerations

LT1110CS8-12#PBF offers the same electrical specifications in an SOIC-8 surface-mount package.