ADP3820ARTZ-4.1RL7

Overview

The ADP3820ARTZ-4.1RL7 is a linear charger IC designed for single-cell lithium-ion and lithium-polymer batteries, manufactured by Analog Devices Inc. It integrates a low-dropout linear regulator capable of delivering up to 200 mA of output current. The device operates within a specified temperature range and utilizes a SOT-23-6 surface-mount package. Key electrical characteristics include a fixed output voltage of 4.1 V, ensuring precise battery charging termination. The component functions as a power supply support circuit, providing essential management features for portable electronic applications requiring reliable and compact charging solutions.

Feature Summary

• Integrates a low-dropout linear regulator for efficient battery charging
• Designed specifically for single-cell lithium-ion and lithium-polymer chemistries
• Provides precise voltage regulation for safe charging termination

Applications

• Single-cell lithium-ion battery charging in portable devices
• Lithium-polymer battery management systems
• Compact consumer electronics with limited board space

Procurement Notes

Verify the obsolete status and availability through authorized distributors or direct manufacturer channels before procurement planning. Confirm that the SOT-23-6 package and 4.1 V output specification match your design requirements. Ensure compliance with RoHS standards if applicable to your region. Due to potential discontinuation, evaluate long-term supply chain risks and consider alternative sourcing strategies for production continuity.

Selection Notes

Select this component when a simple, cost-effective linear charging solution is required for single-cell Li-Ion or Li-Po batteries. It is suitable for applications where efficiency is less critical than simplicity and minimal external component count. The 200 mA current limit defines its suitability for small-capacity batteries. Ensure the input voltage headroom supports the low-dropout operation under all expected load conditions.

Part Context

This part belongs to the ADP3820 series from Analog Devices, which focuses on battery charging management. The ADP3820 family offers various output voltage options tailored to different battery chemistries. The ARTZ suffix indicates a specific tape-and-reel packaging format compatible with automated assembly processes. This series is positioned within the PMIC category for power management integrated circuits.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is listed as obsolete, engineers should consult Analog Devices for recommended alternatives or cross-reference with other single-cell linear chargers offering similar 4.1 V output and SOT-23-6 packaging.