LT1110CN8-12#PBF

Overview

The LT1110CN8-12#PBF is a micropower DC-DC converter manufactured by Analog Devices Inc. It operates with supply voltages ranging from 1.0V to 30V and supports both step-up and step-down conversion modes. The device delivers a fixed output voltage of 12V and requires only three external components for operation. It features an internal 1A power switch, a low-battery detector comparator, and user-adjustable current limit. The quiescent current is 300µA, and the oscillator frequency is approximately 70kHz. It is housed in an 8-pin PDIP package.

Feature Summary

• Versatile micropower DC-DC converter supporting step-up and step-down topologies
• Requires only three external off-the-shelf components for fixed or adjustable output configurations
• Integrates an auxiliary gain block functioning as a low battery detector or linear post regulator
• Includes an on-chip user-adjustable current limit and internal 1A power switch

Applications

• Single cell primary power source applications
• Remote systems requiring minimal current consumption
• Battery powered equipment with low quiescent current requirements
• Low-battery detection circuits using the auxiliary gain block

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix matches the required package and temperature range. Check for recent product change notifications regarding pinout or electrical specifications. Ensure storage conditions comply with moisture sensitivity level requirements before assembly.

Selection Notes

Select this part when a versatile, low-component-count solution is needed for converting single-cell or wide-range input voltages. The LT1110 is suitable for applications prioritizing simplicity and low standby current over high efficiency at heavy loads. Consider the LT1111 if higher performance is required for step-down applications with input sources greater than 3V.

Part Context

The LT1110 belongs to the LT1110 family of micropower DC-DC converters designed for space-constrained and battery-operated environments. It shares functional similarities with the LT1111 but offers broader topology flexibility including buck and boost modes. The CN8 suffix indicates an 8-pin plastic dual in-line package suitable for through-hole mounting.

Replacement Considerations

LT1111CS8-12#PBF: Recommended for step-down applications where input voltage exceeds 3V due to improved performance characteristics.