ADP1108AN

Overview

The ADP1108AN is a micropower switch-mode DC-DC converter manufactured by Analog Devices Inc. It operates from an input voltage supply as low as 2.0 V and typically starts up from this level. The device supports adjustable output voltages or fixed configurations at 3.3 V, 5 V, and 12 V. It consumes only 110 µA of quiescent current. The component is housed in an 8-DIP package with a width of 0.300 inches (7.62 mm). It functions as a flexible, low-power switching mode power supply controller capable of boost, buck, or inverting topologies.

Feature Summary

• Operates from input supply voltages ranging from 2.0 V to 30 V
• Provides auxiliary gain block functionality for low battery detection, linear post regulation, under-voltage lockout, or error amplification
• Supports multiple conversion topologies including step-up, step-down, and inverting configurations

Applications

• Low battery detection circuits
• Linear post-regulator applications
• Under-voltage lockout circuit implementation
• Error amplifier usage in power management systems

Procurement Notes

Verify the specific suffix designation when ordering, as it determines the fixed output voltage option if applicable. Confirm the package type matches the required footprint. Check current production status, as availability may vary. Ensure compatibility with the intended input voltage range and topology requirements before procurement.

Selection Notes

Select this component for applications requiring low quiescent current and wide input voltage ranges. Consider the available fixed voltage options or adjustability needs. Evaluate the need for the auxiliary gain block features such as battery monitoring or UVLO. Ensure the DIP package format suits the assembly process and board layout constraints.

Part Context

The ADP1108 belongs to the family of micropower DC-DC converters designed for energy-efficient power management. It serves as a versatile solution for portable and battery-operated devices where power conservation is critical. The device integrates control logic for various switching regulator topologies within a compact package.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.