Designated LTC3125, its internal 1.2A switches can deliver output voltages as high as 5.25V from an input voltage range of 1.8V to 5.5V, making it well-suited for Li-Ion/Polymer, 3.3V PC card slot or multicell alkaline/NiMH applications. The LTC3125 can deliver up to 500mA of continuous output current (at 5V) from a 3.3V input.
The LTC3125's average input current limit can be programmed between 200mA and 1000mA with ±5% accuracy. Synchronous rectification enables efficiencies up to 93% while Burst Mode operation lowers quiescent current to 15µA, providing extended battery run-time in handheld applications.
The LTC3125 can also operate in Buck mode, providing a regulated output lower than the input. It is housed in a 2mm x 3mm DFN-8 package, providing a tiny solution footprint and profile required in PC-card applications.
Pricing: Starts at $2.25 each in 1K quantities.
Datasheet: Click here.
Linear Technology, www.linear.com