LTC3407AIMSE-2#TRPBF

PMIC–Voltage Regulators–DC DC Switching Regulators

The LTC3407AIMSE-2#TRPBF is an advanced, programmable, DC-to-DC buck regulator which provides outstanding efficiency and power density. It is suitable for a variety of digital systems such as gate drivers, FPGAs, and system-on-chip (SoC) applications. The LTC3407AIMSE-2#TRPBF can be programmed up to 6V with a 0.3% accuracy. The buck regulator uses pulse frequency modulation and works in a current mode.

Application Fields

The LTC3407AIMSE-2#TRPBF can serve as a DC-to-DC buck regulator for powering gate drivers, FPGAs and SoCs.

It can also serve as a general-purpose voltage regulator, providing up to 3A current output for applications like lab power supplies, portable electronics, and lighting dimmers.

Working Principle

The LTC3407AIMSE-2#TRPBF works in current-mode where a feedback system senses the error between the actual output voltage and the desired output voltage and compensates it by adjusting the on-time of the series element.

The buck regulator uses a pulse frequency modulation control. The maximum on time is set by a resistor connected to the EFT pin, while the output voltage is set by a resistor connected to the EFF pin.

The regulator is enabled when the EN pin is pulled high. The shutdown is initiated by a low voltage on the EN pin. The regulator has a power-good indicator output and can be programmed using a serial interface.

Conclusion

The LTC3407AIMSE-2#TRPBF is a high-performance, programmable, DC-to-DC buck converter suitable for a variety of digital systems such as gate drivers, FPGAs and SoCs. It can provide up to 3A current output and can be programmed up to 6V with a 0.3% accuracy. The buck converter uses a pulse frequency modulation control operated in current-mode, making it very efficient and power-dense.