TPS62242DRVTG4

The TPS62242DRVTG4 is a 5-Volt, pulse width modulation (PWM), single output step-down (buck) DC-DC switching regulator designed to support low-power applications in a wide variety of end products, including personal electronics, industrial instruments, and electric vehicles.

The device provides the ideal combination of high efficiency and high power density, making it a perfect solution in space-constrained designs. Additionally, the TPS62242DRVTG4 supports a wide input voltage range of 4.5V to 42V, allowing it to be used in a variety of power systems.

Features:

• Input voltage range of 4.5V to 42V
• In-rush slew rate control for input filtering
• Selectable switching frequency of 550kHz or 1.1MHz
• Quasi-resonant operation for improved light-load performance
• Programmable soft start
• Output short-circuit current limit and output disconnect
• Thermal protection
• Supports active-current-balancing up to 3 buck converters
• Third-party certified quality management system

Applications:

• Multi-rail power supply for FPGA and processor
• High-current point-of-load (PoL) regulation
• Battery-charger or battery-management systems
• Network power supplies
• Industrial and medical equipment

Working Principle:

The TPS62242DRVTG4 is a low-power, 5-volt step-down (buck) DC-DC switching regulator that uses pulse-width modulation (PWM) to regulate an input voltage of 4.5V to 42V down to a regulated 5-volt output. The device supports a wide range of switching frequencies (550kHz to 1.1MHz) to optimize power consumption and efficiency. The device also has in-rush slew rate control for input filtering and features a wide range of features such as programmable soft start, output short-circuit current limit, output disconnect and thermal protection.

The TPS62242DRVTG4 works by switching the internal P-channel MOSFET and N-channel MOSFET from the input voltage to the output voltage. The internal MOSFETs are driven at a fixed frequency, determined by an internal oscillator. The duty cycle of the MOSFETs is then adjusted to control the output voltage. The device also features a programmable soft start to reduce input inrush current, as well as other features such as output current limit and thermal protection.