LT1110CN8#PBF

Overview

The LT1110CN8#PBF is a micropower DC-DC converter manufactured by Analog Devices (formerly Linear Technology). It operates with input supply voltages ranging from 1.0V to 30V and supports step-up, step-down, inverting, and non-inverting topologies. The device features an internal 1A power switch and requires only three external components for fixed output configurations of 5V or 12V. Key electrical parameters include a quiescent current of 300µA, a switching frequency of 70kHz, and an on-chip auxiliary gain block functioning as a low-battery detector comparator. It is housed in an 8-pin PDIP package.

Feature Summary

• Operates in step-up, step-down, inverting, and non-inverting modes using minimal external components
• Includes an internal 1A power switch and user-adjustable current limit protection
• Features an auxiliary gain block that functions as a low-battery detector or linear post regulator

Applications

• Battery-powered remote instrumentation systems requiring low quiescent current
• Single-cell primary power source applications due to 1.0V minimum operating voltage
• Portable devices utilizing surface mount inductors and capacitors enabled by 70kHz oscillation

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout compatibility and thermal characteristics. Ensure the procurement channel provides valid traceability for the PDIP-8 package. Confirm RoHS compliance status matches project requirements. Cross-reference the manufacturer part number with the latest datasheet revision to validate functional specifications before integration.

Selection Notes

Select this component when designing circuits that require versatile DC-DC conversion capabilities from a wide input voltage range. It is suitable for applications prioritizing low static current consumption and simplified bill-of-materials through reduced external component counts. Consider the internal 1A switch capability for moderate load requirements without external pass transistors.

Part Context

This component belongs to the LT1110 family of micropower DC-DC converters produced by Analog Devices. The CN8 designation indicates a commercial temperature range variant packaged in an 8-pin plastic dual in-line package. The #PBF suffix denotes lead-free construction compliant with environmental directives. This series is designed for space-constrained designs requiring high efficiency at low power levels.

Replacement Considerations

LT1110CS8#PBF: Surface-mount SOIC-8 equivalent with identical electrical performance.