The LTC1703CG is a high-performance step-down synchronous controller from Linear Technology, designed to deliver high efficiency and precise regulation for power supply systems. This innovative product eliminates the need for a sense resistor (RSENSE) by utilizing its internal high-side switch current sense. Its high-frequency operation allows for the use of small surface-mount components, thereby reducing board space and increasing power density.

Key Features:

• No RSENSE Operation: The LTC1703CG operates without the need for an external sense resistor, improving efficiency and reducing system cost and complexity.
• High Efficiency: With its synchronous operation, the LTC1703CG provides efficient power conversion, which is critical for battery-powered and energy-sensitive applications.
• High Switching Frequency: Capable of operating at up to 550kHz, the LTC1703CG allows for the use of smaller, low-profile inductors and capacitors, resulting in a compact power supply design.
• Wide Input Voltage Range: The device is designed to work with an input voltage range from 4V to 36V, making it versatile for various applications from automotive to industrial systems.
• Adjustable Output Voltage: The output voltage is adjustable, giving designers the flexibility to tailor the power supply to the specific needs of their application.
• Low Dropout Operation: The LTC1703CG's low dropout capability ensures continuous operation even when the input voltage is close to the output voltage, which is crucial for battery-operated devices.

Applications:

• Portable Computers
• Telecommunications
• Networking Equipment
• Industrial and Automotive Power Systems

The LTC1703CG's robust feature set, including its phase-locked loop (PLL) for noise reduction and its ability to drive large synchronous rectifier MOSFETs, makes it an ideal choice for creating efficient, high-density power supplies. With its compact SSOP-16 packaging, the LTC1703CG combines performance with a small footprint, offering a versatile solution for modern electronic power management.