ADP2108AUJZ-1.1-R7

Voltage Regulators - DC DC Switching Regulators Overview

The ADP2108AUJZ-1.1-R7 is a synchronous step-down DC-to-DC converter manufactured by Analog Devices Inc., featuring a fixed 1.1 V output voltage and a maximum output current of 600 mA. It operates with a fixed switching frequency of 3 MHz and accepts an input voltage range from 2.3 V to 5.5 V. The device utilizes a TSOT-23-5 surface-mount package and supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Employs a proprietary high-speed current mode control scheme for excellent stability and fast transient response.
• Integrates internal synchronous rectification, compensation, and soft-start functionality to minimize external component count.
• Features a power-saving pulse frequency modulation (PFM) mode that reduces switching frequency under light load conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable applications requiring extended battery life
• Single Li+/Li-polymer cell powered systems
• Multiple alkaline or NiMH cell powered devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix configuration against official documentation to confirm the exact output voltage rating. Ensure compatibility with the required thermal management and PCB layout guidelines specified in the datasheet for the TSOT-23-5 package. Confirm availability status through authorized channels as supply levels may vary.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution with fast transient response is required for low-voltage digital loads. The 3 MHz frequency allows for the use of small multilayer inductors and capacitors, reducing overall solution size. Consider the 600 mA output limit and input voltage range relative to the system power requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the ADP2108 series of high-efficiency, low quiescent current step-down converters. The series is designed for portable electronics, offering a complete solution with minimal external components. Variants within the series differ primarily in their fixed output voltage settings while maintaining identical electrical characteristics and packaging.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official Analog Devices documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical specifications before substitution.