LT LTC3553EUD-2#PBF

Overview

The LTC3553EUD is a micropower, highly integrated power management and battery charger IC for single-cell Li-Ion/Polymer battery applications. It includes a PowerPath manager with automatic load prioritization, a battery charger, an ideal diode and numerous internal protection features. Designed specifically for USB applications, the LTC3553EUD power manager automatically limits input current to a maximum of either 100mA or 500mA. Battery charge current is automatically reduced such that the sum of the load current and the charge current does not exceed the selected input current limit. The LTC3553EUD also includes a synchronous buck regulator, a low dropout linear regulator (LDO), and a pushbutton controller. With all supplies enabled in standby mode, the quiescent current drawn from the battery is only 12μA. The LTC3553EUD is available in a 3mm × 3mm × 0.75mm 20-pin QFN package.

Features

Mainly used in Handheld/Mobile Devices applications
Operating temperature: -40°C~85°C
POWER SUPPLY SUPPORT CIRCUIT analog IC
2 Outputs

Bulk Package

Applications

There are a lot of Linear Technology/Analog Devices
LTC3553EUD-2#PBFPower Management applications.

• Netbooks
• SmartPhones
• Portable Navigation Devices
• Portable Media Players
• Portable Systems
• Hand-Held Systems
• Space satellite point of load supply
• Communications payload
• Optical imaging payload
• Desktop PC