LT3461A Series

1.3MHz Step-Up DC/DC Converters with Integrated Schottky in ThinSOT

Catalog

1.3MHz Step-Up DC/DC Converters with Integrated Schottky in ThinSOT

Part	Number of Outputs	Voltage - Input (Min) [Min]	Mounting Type	Supplier Device Package	Voltage - Input (Max) [Max]	Topology	Operating Temperature [Max]	Operating Temperature [Min]	Frequency - Switching	Current - Output	Output Type	Voltage - Output (Max)	Output Configuration	Package / Case	Function	Voltage - Output (Min/Fixed)
Analog Devices LT3461AES6#TRPBF	1	2.5 V	Surface Mount	TSOT-23-6	16 V	Boost	85 °C	-40 °C	3 MHz	300 mA	Adjustable	38 V	Positive	SOT-23-6 Thin TSOT-23-6	Step-Up	1.255 V
Analog Devices LT3461ES6#TRMPBF	1	2.5 V	Surface Mount	TSOT-23-6	16 V	Boost	85 °C	-40 °C	1.3 MHz	300 mA	Adjustable	38 V	Positive	SOT-23-6 Thin TSOT-23-6	Step-Up	1.255 V
Analog Devices LT3461ES6#TRPBF	1	2.5 V	Surface Mount	TSOT-23-6	16 V	Boost	85 °C	-40 °C	1.3 MHz	300 mA	Adjustable	38 V	Positive	SOT-23-6 Thin TSOT-23-6	Step-Up	1.255 V

Catalog

1.3MHz Step-Up DC/DC Converters with Integrated Schottky in ThinSOT

Key Features

• Integrated Schottky Rectifier

• Fixed Frequency 1.3MHz/3MHz Operation

• High Output Voltage: Up to 38V

• Low VCESATSwitch: 260mV at 250mA

• 12V at 70mA from 5V Input

• 5V at 115mA from 3.3V Input

• Wide Input Range: 2.5V to 16V

• Uses Small Surface Mount Components

• Low Shutdown Current: <1µA

• Soft-Start

• Low Profile (1mm) SOT-23 (ThinSOTTM) Package

Description

The LT3461/LT3461A are general purpose fixed frequency current mode step-up DC/DC converters. Both devices feature an integrated Schottky and a low VCESATswitch allowing a small converter footprint and lower parts cost. The LT3461 switches at 1.3MHz while the LT3461A switches at 3MHz. These high switching frequencies enable the use of tiny, low cost and low height capacitors and inductors. The constant switching frequency results in predictable output noise that is easy to filter, and the inductor based topology ensures an input free from switching noise typically present with charge pump solutions. The high voltage switch in the LT3461/LT3461A is rated at 40V making the device ideal for boost converters up to 38V.The LT3461/LT3461A are available in a low profile (1mm) SOT-23 package.Switching FrequencyLT34611.3MHzLT3461A3MHzApplicationsDigital CamerasCCD Bias SupplyXDSL Power SupplyTFT-LCD Bias SupplyLocal 5V or 12V SupplyMedical Diagnostic EquipmentBattery Backup