The LTC1922IG-1 is a high-performance dual DC/DC controller designed by Linear Technology, now part of Analog Devices, for demanding power regulation applications. This advanced controller is engineered to drive all N-channel synchronous power MOSFET stages, which makes it an ideal choice for creating efficient power supplies in a compact form factor.

Key Features

• Wide Input Voltage Range: The LTC1922IG-1 operates over a broad input voltage range, accommodating various supply voltages and ensuring versatility across different applications.
• Independent Dual Outputs: This controller is capable of managing two separate output voltages, allowing for simultaneous control of multiple power rails with different voltage levels.
• Phase-Lockable Fixed Frequency: The LTC1922IG-1's operating frequency can be locked to an external clock, enabling noise-sensitive applications to minimize electromagnetic interference.
• OPTI-LOOP® Compensation: The inclusion of Linear Technology's proprietary OPTI-LOOP compensation allows for optimization of transient response, reducing output voltage deviation under varying load conditions.
• Current Mode Control: Current mode control provides excellent line and load transient response, as well as cycle-by-cycle overcurrent protection.

Applications

The LTC1922IG-1 is well-suited for a range of applications, including:

• Telecommunications infrastructure
• Industrial systems
• Networking equipment
• High-density power systems

Robust Protection Features

With a focus on reliability and safety, the LTC1922IG-1 incorporates several protection features:

• Overvoltage Protection: Shields the device and load from excessive input voltage.
• Undervoltage Lockout: Prevents operation at insufficient voltages, which could otherwise lead to unstable performance.
• Overcurrent Protection: Limits the output current to prevent damage to the controller and connected components in the event of a short circuit or overload.

Durable and Reliable Design

The LTC1922IG-1 is packaged in a 36-lead SSOP, which provides a compact solution with a thermal pad for enhanced heat dissipation. Its industrial-grade design ensures operation in harsh environments, with a temperature range of -40°C to 85°C. This robust construction, combined with its advanced feature set, makes the LTC1922IG-1 an excellent choice for engineers seeking a reliable dual DC/DC controller solution.