1.7A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect Features: High Efficiency: Up to 95% Inrush Current Limiting and Output Disconnect Programmable Output Voltages up to 6V 1.5V to 6V Input Range Programmable/Synchronizable Fixed Frequency Operation up to 1.5MHz Programmable Automatic Burst Mode® Operation Current Mode Control with Programmable Soft-Start Period and Peak Current Limit 0.2Ω N-Channel and 0.3Ω P-Channel Switches Ultralow Quiescent Currents: 12µA Sleep, <1µA in Shutdown 12-Pin 4mm × 3mm Thermally Enhanced DFN Package

1A Buck-Boost DC/DC and Dual 600mA Buck DC/DC Converters Features: Three High Efficiency DC/DC Converters: Buck-Boost (VOUT: 1.8V to 5.25V, IOUT: 1A) Dual Buck (VOUT: 0.6V to VIN, IOUT: 600mA) 1.8V to 5.5V Input Voltage Range Pin-Selectable Burst Mode® Operation 30μA Total Quiescent Current in Burst Mode Operation Independent Power Good Indicator Outputs Integrated Soft-Start Thermal and Overcurrent Protection <2μA Current in Shutdown Small 4mm × 4mm QFN and Thermally Enhanced TSSOP Packages

1A Buck-Boost DC/DC and Dual 600mA Buck DC/DC Converters Features: Three High Efficiency DC/DC Converters: Buck-Boost (VOUT: 1.8V to 5.25V, IOUT: 1A) Dual Buck (VOUT: 0.6V to VIN, IOUT: 600mA) 1.8V to 5.5V Input Voltage Range Pin-Selectable Burst Mode® Operation 30μA Total Quiescent Current in Burst Mode Operation Independent Power Good Indicator Outputs Integrated Soft-Start Thermal and Overcurrent Protection <2μA Current in Shutdown Small 4mm × 4mm QFN and Thermally Enhanced TSSOP Packages

400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect Features:Up to 95% EfficiencyOutput Disconnect and Inrush Current LimitFixed Output Voltages of 3V, 3.3V or 5VDelivers 65mA at 3V from a 1V InputDelivers 60mA at 3.3V from a 1V Input, or 140mA at 3.3V from a 1.8V InputDelivers 175mA at 5V from a 3V InputBurst Mode® Operation: IQ = 7μAOnly Three External ComponentsVIN > VOUT Operation<1μA Shutdown CurrentAntiringing ControlShort-Circuit and Overtemperature ProtectionVery Low Profile of 1mmTiny 6-Lead SC70 Package

400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect Features:Up to 95% EfficiencyOutput Disconnect and Inrush Current LimitFixed Output Voltages of 3V, 3.3V or 5VDelivers 65mA at 3V from a 1V InputDelivers 60mA at 3.3V from a 1V Input, or 140mA at 3.3V from a 1.8V InputDelivers 175mA at 5V from a 3V InputBurst Mode® Operation: IQ = 7μAOnly Three External ComponentsVIN > VOUT Operation<1μA Shutdown CurrentAntiringing ControlShort-Circuit and Overtemperature ProtectionVery Low Profile of 1mmTiny 6-Lead SC70 Package

400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect Features:Up to 95% EfficiencyOutput Disconnect and Inrush Current LimitFixed Output Voltages of 3V, 3.3V or 5VDelivers 65mA at 3V from a 1V InputDelivers 60mA at 3.3V from a 1V Input, or 140mA at 3.3V from a 1.8V InputDelivers 175mA at 5V from a 3V InputBurst Mode® Operation: IQ = 7μAOnly Three External ComponentsVIN > VOUT Operation<1μA Shutdown CurrentAntiringing ControlShort-Circuit and Overtemperature ProtectionVery Low Profile of 1mmTiny 6-Lead SC70 Package

500mA 1MHz Synchronous Step-Up DC/DC Converters in 2mm 2mm DFN Features: Delivers 3.3V at 100mA from a Single Alkaline/NiMH Cell or 3.3V at 200mA from Two Cells VIN Start-Up Voltage: 850mV 1.6V to 5.25V VOUT Range Up to 94% Efficiency Output Disconnect 1MHz Fixed Frequency Operation VIN > VOUT Operation Integrated Soft-Start Current Mode Control with Internal Compensation Automatic Burst Mode® Operation with 9μA Quiescent Current (LTC3526) Low Noise PWM Operation (LTC3526B) Internal Synchronous Rectifier Logic Controlled Shutdown (IQ < 1μA) Anti-Ringing Control Low Profile (2mm × 2mm × 0.75mm) DFN Package

1.5A, 1.5MHz Step-Up DC/DC Converter in 2mm 3mm DFN Features: Compact Solution for 5V USB On-The-Go VBUS Power 5V at 500mA from Single Li-Ion Cell Automatic Fault Detection High Efficiency: Up to 95% VIN Range: 1.8V to 5.25V Fixed 5V Output Short Circuit Protection 1.5MHz Low Noise, Fixed Frequency PWM Inrush Current Limiting and Internal Soft-Start Output Disconnect <1μA Quiescent Current in Shutdown VIN > VOUT Operation 8-Lead, 2mm × 3mm DFN Package

Wide Input Voltage Synchronous Buck-Boost DC/DC Converter Features: Regulated Output with Input Voltages Above, Below or Equal to the Output 1.8V to 5.5V Input and 1.8V to 5.25V Output Range 250mA Continuous Output Current from 1.8V VIN 600mA Continuous/1A Peak Output Current from Li-Ion Single Inductor Synchronous Rectication: Up to 96% Efciency Programmable Automatic Burst Mode® Operation Output Disconnect in Shutdown Pin Compatible with the LTC3440 Programmable Frequency from 300kHz to 2MHz <1µA Shutdown Current Small Thermally Enhanced 10-Lead (3mm × 3mm) DFN and 10-Lead MS Packages

200mA Buck-Boost Synchronous DC/DC Converters Features: Regulated Output with Input Above, Below or Equal to the Output Single Inductor Up to 90% Efficiency VIN Range: 1.8V to 5.5V 200mA at 3.3VOUT from 3.6V Input 125mA at 3VOUT from 2.5V Input Fixed VOUT Versions (TSOT, DFN): 3.3V, 3V Adjustable VOUT Version (DFN): 2V to 5V Burst Mode® Operation, No External Compensation Ultra Low Quiescent Current: 16μA, Shutdown Current <1μA Only 3 External Components Required (Fixed Voltage Versions) Short-Circuit Protection Output Disconnect in Shutdown Available in 6-Pin ThinSOT and 3mm × 3mm DFN Packages