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LTC3703 - 100V Synchronous Switching Regulator Controller

General Description

The LTC®3703 is a synchronous step-down switching regulator controller that can directly step down voltages from up to 100V, making it ideal for telecom and automotive applications.

The LTC3703 drives external N-channel MOSFETs using a constant frequency (up to 600kHz), voltage mode architecture.

Key Features

  • n High Voltage Operation: Up to 100V n Large 1Ω Gate Drivers n No Current Sense Resistor Required n Step-Up or Step-Down DC/DC Converter n Dual N-Channel MOSFET Synchronous Drive n Excellent Line and Load Transient Response n Programmable Constant Frequency: 100kHz to 600kHz n ±1% Reference Accuracy n Synchronizable up to 600kHz n Selectable Pulse-Skip Mode Operation n Low Shutdown Current: 50µA Typ n Programmable Current Limit n Undervoltage Lockout n Programmable Soft-Start n 16-Pin Narrow SSO.

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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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Features n High Voltage Operation: Up to 100V n Large 1Ω Gate Drivers n No Current Sense Resistor Required n Step-Up or Step-Down DC/DC Converter n Dual N-Channel MOSFET Synchronous Drive n Excellent Line and Load Transient Response n Programmable Constant Frequency: 100kHz to 600kHz n ±1% Reference Accuracy n Synchronizable up to 600kHz n Selectable Pulse-Skip Mode Operation n Low Shutdown Current: 50µA Typ n Programmable Current Limit n Undervoltage Lockout n Programmable Soft-Start n 16-Pin Narrow SSOP and 28-Pin SSOP Packages Applications n 48V Telecom and Base Station Power Supplies n Networking Equipment, Servers n Automotive and Industrial Control L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT and No RSENSE are trademarks of Linear Techn