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LTC3499 - 750mA Synchronous Step-Up DC/DC Converters

General Description

The LTC®3499/LTC3499B are synchronous, fixed frequency step-up DC/DC power converters with integrated reverse battery protection that protect and disconnect the devices and load when the battery polarity is reversed while delivering high efficiency in a small (3mm × 3mm) DFN package.

Key Features

  • n Reverse-Battery Protection for DC/DC Converter and Load n High Efficiency: Up to 94% n Generates 5V at 175mA from a 1.8V Input n Operates from 1.8V to 5.5V Input Supply n 2V to 6V Adjustable Output Voltage n Inrush Current Controlled During Start-Up n Output Disconnnect in Shutdown n Low Noise 1.2MHz PWM Operation n Tiny External Components n Automatic Burst Mode® Operation (LTC3499) n Continuous Switching at Light Loads (LTC3499B) n Overvoltage Protection n 8-Lead (3mm × 3mm × 0.75mm) DFN and.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LTC3499/LTC3499B 750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection FEATURES n Reverse-Battery Protection for DC/DC Converter and Load n High Efficiency: Up to 94% n Generates 5V at 175mA from a 1.8V Input n Operates from 1.8V to 5.5V Input Supply n 2V to 6V Adjustable Output Voltage n Inrush Current Controlled During Start-Up n Output Disconnnect in Shutdown n Low Noise 1.2MHz PWM Operation n Tiny External Components n Automatic Burst Mode® Operation (LTC3499) n Continuous Switching at Light Loads (LTC3499B) n Overvoltage Protection n 8-Lead (3mm × 3mm × 0.75mm) DFN and MSOP Packages APPLICATIONS n Medical Equipment n Digital Cameras n MP3 Players n Handheld Instruments L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.