LTC3240EDC-3.3#TRPBF

LTC3240-3.3/LTC3240-2.5 3.3V/2.5V Step-Up/ Step-Down Charge Pump DC/DC Converter U FEATURES DESCRIPTIO ■ The LTC®3240-3.3/LTC3240-2.5 are step-up/step-down charge pump DC/DC converters that produce a fixed regulated output voltage of 3.3V or 2.5V over a wide input voltage range (1.8V to 5.5V). ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Step-Up/Step-Down Charge Pumps Generate Fixed 3.3V or 2.5V Outputs VIN Range: 1.8V to 5.5V Output Current up to 150mA Automatic Mode Switching Constant Frequency (1.2MHz) Operation in Step-Up Mode Low Dropout Regulator Operation in Step-Down Mode Low No-Load Quiescent Current: IQ = 65µA Built-In Soft-Start Reduces Inrush Current Shutdown Disconnects Load from Input Shutdown Current < 1µA Short-Circuit/Thermal Protection Available in a 6-Lead (2mm × 2mm) DFN Package U APPLICATIO S ■ ■ 2 AA to 2.5V 2-3 AA/Li-Ion to 3.3V Low Power Supplies for Cameras, I/O Supplies, Audio, PC Cards, Misc. Logic, etc., in a Wide Variety of Handheld Products The LTC3240-3.3/LTC3240-2.5 feature low no load operating current (65µA typical) and ultralow operating current in shutdown (