LTC4088EDE#TRPBF

LTC4088 is a high efficiency USB PowerPath™ controller and Li-Ion/Polymer battery charger. It includes a synchronous switching input regulator, a full-featured battery charger and an ideal diode. Designed specifically for USB applications, this device’s switching regulator automatically limits its input current to either 100mA, 500mA or 1A for wall-powered applications via logic control. The switching input stage provides power to VOUT where power sharing between the application circuit and the battery charger is managed. Unlike linear PowerPath controllers, this device’s switching input stage can use nearly all of the 0.5W or 2.5W available from the USB port with minimal power dissipation. This feature allows the device to provide more power to the application and eases thermal issues in space-constrained applications. It is widely used in applications such as media players, digital cameras, GPS, PDAs, smart phones etc.

• Bat-Track™ adaptive output control
• Slew control reduces switching EMI
• Input supply voltage range is 4.35V to 5.5V
• Total input current is 97mA typical at (TA = 25°C, VBUS = 5V, BAT = 3.8V)
• Input quiescent current is 6mA typical at ( TA = 25°C, VBUS = 5V, BAT = 3.8V)
• Switching frequency is 2.25MHz typical at (TA = 25°C, VBUS = 5V, BAT = 3.8V)
• Cold temperature fault threshold voltage is 1.5%VBUS typical at (TA = 25°C, VBUS = 5V, BAT = 3.8V)
• Battery drain current is 3.5µA typical at (TA = 25°C, VBUS = 5V, BAT = 3.8V)
• Operating temperature is -40°C to 85°C
• Package style is 14-lead plastic DFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party