LTC3602EFE#PBF

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PMIC - Voltage Regulators - DC DC Switching Regulators

The LTC3602EFE#PBF is a feature-rich, low output voltage DC-DC switching regulator specifically designed for powering specialty microcontrollers and low power SoCs. It\'s designed to provide the best possible performance and is suitable for a wide range of applications, including those that require high performance, power efficiencies, and wide input voltage ranges. The device is a step-down DC-DC switching regulator with a maximum switching frequency of 4MHz, peak current capability of 2A, and a low quiescent current of just 2.2mA. Its 1.2V to 5V output range, low dropout voltage, and 30mA output current makes it ideal for powering low power SOCs.

Working Principle

The LTC3602EFE#PBF is based on a traditional synchronous-rectified Buck converter topology where the input power is converted to regulated output voltage and current. It enables a high efficiency of up to 96.5% by utilizing a low RDSON internal N-channel power MOSFET and internal synchronous-rectifier driver. Furthermore, the low RDSON MOSFET ensures low ripple noise and low EMI to support a wide range of high performance applications.

The device operates in a pulse width modulation (PWM) mode for a wide output range with a fast settling and no-load regulation. Furthermore, its low drop-out voltage (12mV at 250mA load), allows a wide input operating range up to 14V, thus enabling a wide and efficient DC-DC conversion ratio.

Other Features

The LTC3602EFE#PBF features a wide range of features and capabilities, including soft-start and programmable under-voltage lockout, an adjustable oscillator frequency (1MHz to 4MHz) with selectable low frequency (<400kHz) option and external synchronization capability, an integrated compensation network, and a programmable external current limit circuitry.

For protection and monitoring purposes, the device also has two independent over-voltage limit (OV) pins that can be configured for per-channel over-current protection and a programmable current monitor with an output low signal .

The device also includes thermal shutdown, current foldback for pulse-by-pulse current limiting, under-voltage lockout, and a power-on reset that locks the device until a minimal input voltage is achieved.

Conclusion

The LTC3602EFE#PBF DC-DC switching regulator is a high performance, low output voltage DC-DC switching regulator specifically designed for powering specialty microcontrollers and low power SoCs. Its wide range of features and capabilities, such as soft-start, adjustable oscillator frequency, current limit, programmable over-voltage limit, and a power-on reset ensures a safe and efficient operation. Additionally, its 1.2V to 5V output range and 96.5% efficiency makes it ideal for a wide range of applications.

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