LT3467 Series

1.1A Step-Up DC/DC Converter with Integrated Soft-Start

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

1.1A Step-Up DC/DC Converter with Integrated Soft-Start

Part	Output Configuration	Mounting Type	Current - Output	Output Type	Package / Case	Voltage - Input (Min) [Min]	Function	Topology	Number of Outputs	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed)	Frequency - Switching	Voltage - Input (Max) [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package
Analog Devices Inc./Maxim Integrated LT3467IS6#TRM
Analog Devices Inc./Maxim Integrated LT3467IS6#TRPBF	Positive	Surface Mount	1.1 A	Adjustable	SOT-23-6 Thin TSOT-23-6	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	1.3 MHz	16 V	-40 C	125 °C	TSOT-23-6
Analog Devices Inc./Maxim Integrated LT3467IS6#TRMPBF	Positive	Surface Mount	1.1 A	Adjustable	SOT-23-6 Thin TSOT-23-6	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	1.3 MHz	16 V	-40 C	125 °C	TSOT-23-6
Analog Devices Inc./Maxim Integrated LT3467IDDB#TRMPBF	Positive	Surface Mount	1.1 A	Adjustable	8-WFDFN Exposed Pad	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	1.3 MHz	16 V	-40 C	125 °C	8-DFN (3x2)
Analog Devices Inc./Maxim Integrated LT3467IDDB#TRPBF	Positive	Surface Mount	1.1 A	Adjustable	8-WFDFN Exposed Pad	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	1.3 MHz	16 V	-40 C	125 °C	8-DFN (3x2)
Analog Devices Inc./Maxim Integrated LT3467ES6#TRPBF	Positive	Surface Mount	1.1 A	Adjustable	SOT-23-6 Thin TSOT-23-6	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	1.3 MHz	16 V	-40 °C	85 °C	TSOT-23-6
Analog Devices Inc./Maxim Integrated LT3467AEDDB	Positive	Surface Mount	1.1 A	Adjustable	8-WFDFN Exposed Pad	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	2.1 MHz	16 V	-40 °C	85 °C	8-DFN (3x2)
Analog Devices Inc./Maxim Integrated LT3467IDDB	Positive	Surface Mount	1.1 A	Adjustable	8-WFDFN Exposed Pad	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	1.3 MHz	16 V	-40 C	125 °C	8-DFN (3x2)
Analog Devices Inc./Maxim Integrated LT3467EDDB#TRPBF	Positive	Surface Mount	1.1 A	Adjustable	8-WFDFN Exposed Pad	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	1.3 MHz	16 V	-40 °C	85 °C	8-DFN (3x2)
Analog Devices Inc./Maxim Integrated LT3467EDDB#TRMPBF	Positive	Surface Mount	1.1 A	Adjustable	8-WFDFN Exposed Pad	2.4 V	Step-Up Step-Up/Step-Down	Boost Flyback SEPIC	1	40 V	1.255 V	1.3 MHz	16 V	-40 °C	85 °C	8-DFN (3x2)

Description

The LT3467/LT3467Aswitching regulators combine a 42V, 1.1A switch with a soft-start function. Pin compatible with the LT1930, its low VCESATbipolar switch enables the device to deliver high current outputs in a small footprint. The LT3467 switches at 1.3MHz, allowing the use of tiny, low cost and low height inductors and capacitors. The LT3467A switches at 2.1MHz, allowing the use of even smaller components. High inrush current at start-up is eliminated using the programmable soft-start function. A single external capacitor sets the current ramp rate. A constant frequency current mode PWM architecture results in low, predictable output noise that is easy to filter.The high voltage switch on the LT3467/LT3467A is rated at 42V, making the devices ideal for boost converters up to 40V as well as SEPIC and flyback designs. The LT3467 can generate 5V at up to 540mA from a 3.3V supply or 5V at 450mA from four alkaline cells in a SEPIC design. The LT3467A can generate 5V at up to 430mA from a 3.3V supply or 15V at 135mA from a 3.3V supply. The LT3467/LT3467A are available in a low profile (1mm) 6-lead SOT-23 package and tiny 3mm × 2mm DFN package.Switching FrequencyLT34671.3MHzLT3467A2.1MHzAPPLICATIONSDigital CamerasWhite LED Power SuppliesCellular PhonesMedical Diagnostic EquipmentLocal 5V or 12V SuppliesTFT-LCD Bias SuppliesxDSL Power Supplies