LTC3642IDD-3.3#PBF - High Efficiency, Low Noise 15V, 50mA Step-Down Regulator

The LTC3642IDD-3.3#PBF is a high-performance step-down regulator from Linear Technology, designed to deliver a fixed output voltage of 3.3V with an input voltage range of 4.5V to 15V. This makes it an ideal choice for battery-powered systems and portable devices where efficient power conversion is crucial.

With its ability to supply up to 50mA of output current, the LTC3642IDD-3.3#PBF is well-suited for applications such as powering microcontrollers, sensors, and other low-power devices. Its high efficiency is achieved through an integrated synchronous rectifier and a constant-frequency, current mode architecture, which also ensures low output ripple and noise.

The device features a low quiescent current, making it suitable for battery-powered applications where extending battery life is a priority. Additionally, the LTC3642IDD-3.3#PBF includes a Power Good (PG) output, allowing for system monitoring and sequencing. The regulator also offers protection features such as over-temperature protection, short-circuit protection, and under-voltage lockout, ensuring reliable operation under a variety of conditions.

Available in a compact 10-lead DFN package, the LTC3642IDD-3.3#PBF is designed for space-constrained applications. Its small footprint and minimal need for external components make it an excellent choice for sleek and compact designs.

Key features of the LTC3642IDD-3.3#PBF include:

• Fixed Output Voltage: 3.3V
• Input Voltage Range: 4.5V to 15V
• Output Current: Up to 50mA
• High Efficiency: Integrated Synchronous Rectifier
• Low Output Ripple and Noise: Constant-Frequency Operation
• Low Quiescent Current: Suitable for Battery-Powered Devices
• Compact 10-Lead DFN Package
• Protection Features: Over-Temperature, Short-Circuit, and Under-Voltage Lockout
• Power Good Output for System Monitoring

The LTC3642IDD-3.3#PBF regulator from Linear Technology offers a combination of high efficiency, low noise, and a wide input voltage range, making it a versatile solution for a range of applications where power efficiency and space are of the essence.