LTC3417AEFE-2#PBF - Dual Monolithic Synchronous Step-Down Regulator

The LTC3417AEFE-2#PBF is a high-performance, dual monolithic synchronous step-down regulator from Linear Technology, designed to deliver efficient power management for a variety of applications. This regulator features two independent output channels, each capable of delivering up to 800mA of continuous output current. The LTC3417AEFE-2#PBF operates over a wide input voltage range from 2.25V to 5.5V, making it suitable for single Li-Ion, multi-cell alkaline, or NiMH applications as well as for power supplies derived from a 5V rail.

The device integrates two internal 0.8Ω switches that allow for a high level of efficiency, which is crucial for battery-powered devices. With a switching frequency of up to 2.25MHz, the LTC3417AEFE-2#PBF enables the use of small, low-cost capacitors and inductors, thereby reducing the overall solution footprint and cost on the PCB. The high-frequency operation also allows for a faster transient response, which is beneficial in applications that have quick load changes.

Each channel of the LTC3417AEFE-2#PBF has independent shutdown and soft-start functions, providing flexibility and precise control to the power management system. The current mode operation provides excellent line and load transient response. Additionally, internal cycle-by-cycle current limit provides protection against shorted outputs, and thermal shutdown ensures protection under over-temperature conditions.

The LTC3417AEFE-2#PBF is available in a thermally efficient 16-lead TSSOP package with an exposed pad for enhanced thermal performance. This package is suitable for space-constrained applications that require a compact power solution without compromising on performance.

Key features of the LTC3417AEFE-2#PBF include:

• Dual 800mA Output Current
• Wide Input Voltage Range: 2.25V to 5.5V
• Up to 95% High Efficiency
• High Switching Frequency: Up to 2.25MHz
• Independent Shutdown and Soft-Start Functions
• Current Mode Operation for Excellent Transient Response
• Low Dropout Operation: 100% Duty Cycle
• Protected by Internal Current Limit and Thermal Shutdown
• Compact 16-Lead TSSOP Package with Exposed Pad

The LTC3417AEFE-2#PBF is an ideal solution for portable devices, wireless modems, and other low-voltage, high-density power systems that require efficient, high-frequency, dual-channel power regulation.