LTC4054ES5-4.2 SOT-23 Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT

The LTC4054ES5-4.2 SOT23 is a highly efficient, standalone linear charger designed specifically for single-cell lithium-ion batteries. This compact device is ideal for applications such as USB-powered devices, where space and efficiency are critical.

Features:

• Constant Current/Constant Voltage Operation: The LTC4054 operates in constant current mode during charging and switches to constant voltage mode as the battery approaches full charge, ensuring optimal charging performance.
• Preset Charge Voltage: It features a preset output voltage of 4.2V with ±1% accuracy, making it suitable for standard lithium-ion battery charging.
• Programmable Charge Current: The charge current can be programmed up to 800mA using an external resistor, allowing flexibility based on application requirements.
• Thermal Regulation: Includes thermal regulation to maximize the charge rate without overheating, enhancing safety and efficiency.
• Compact SOT23 Package: Housed in a small SOT-23 package, it is perfect for space-constrained applications.
• No External Components Required: The design eliminates the need for external MOSFETs, sense resistors, or blocking diodes, simplifying circuit design.
• Wide Input Voltage Range: Operates with an input supply voltage of 4.25V to 6.5V, making it compatible with various power sources.

Application:
The LTC4054ES5-4.2 is ideal for:

• USB Charging Applications: Perfect for charging lithium-ion batteries directly from USB ports.
• Portable Electronics: Suitable for use in smartphones, tablets, and other portable devices requiring efficient battery management.
• Consumer Electronics: Can be utilized in various consumer electronic devices that require reliable battery charging solutions.

Package Included: 1 x LTC4054ES5-4.2 SOT23. Please note that the product image is for illustrative purposes only. The actual product may vary slightly in appearance!