Datasheet Summary
LTC3539/LTC3539-2
2A, 1MHz/2MHz Synchronous Step-Up
DC/DC Converters
Features n Delivers 3.3V at 900mA From 2 Alkaline/NiMH Cells n Delivers 5V at 900mA From a Lithium-Polymer
Battery n VIN Start-Up Voltage: 700mV n 1.5V to 5.25V VOUT Range n Up to 94% Efficiency n VIN > VOUT Operation n ±1.5% Feedback Voltage Tolerance n 1MHz (LTC3539) or 2MHz (LTC3539-2) Fixed
Frequency Operation n Output Disconnect n Selectable Burst Mode® or PWM Operation n 10µA Quiescent Current n Logic Controlled Shutdown: <1µA n Requires Only 6 External ponents n Low Profile (2mm × 3mm × 0.75mm) DFN Package
APPLICATIONS n Medical Instruments n Portable Bar Code Scanners n Noise Canceling Headphones n Portable...