LTC4088EDE#TRPBF - High Efficiency Power Manager and Battery Charger

The LTC4088EDE#TRPBF from Linear Technology is an advanced power management and battery charging solution designed for single-cell Lithium-Ion/Polymer battery-powered systems. This high-efficiency device integrates a synchronous buck regulator, a full-featured battery charger, and multiple protection features to ensure reliable operation and extended battery life.

With its PowerPath™ control, the LTC4088EDE#TRPBF efficiently manages power between the input source, battery, and load. It allows for instant-on operation even with a dead or missing battery, as the load is preferentially powered from the input source when available. The device seamlessly transitions between input power and battery power without interruption to the load.

The integrated battery charger provides a programmable charge rate up to 1.5A with precise input current limiting to avoid overloading the input supply. The charger employs a constant-current/constant-voltage algorithm with temperature monitoring for safe and efficient charging. An internal thermal regulation mechanism optimizes the charge rate to limit the temperature rise of the device during operation.

Additional features of the LTC4088EDE#TRPBF include an NTC thermistor input for temperature-qualified charging, a programmable end-of-charge control, and a C/10 charge termination. The device also offers status indications for charging and power good, which can be used for LED indicators or system feedback.

This versatile power manager is housed in a compact 12-lead (3mm x 3mm) DFN package, making it suitable for space-constrained portable applications. It operates over a wide input voltage range and includes undervoltage lockout, short-circuit protection, and thermal shutdown for additional safety.

Whether used in handheld devices, USB-powered gadgets, or other portable consumer electronics, the LTC4088EDE#TRPBF is an excellent choice for designers looking for a robust and efficient power management solution that can maximize battery life and ensure continuous operation.