PMIC - Voltage Regulators - DC DC Switching Regulators

The LT1933IS6#TRPBF is a gallium nitride (GaN) logic-controlled DC/DC switching regulator specifically designed to support applications with their relatively high switching frequency requirements. It features an integrated logic controller that enables simple, fast, and efficient step-down dc/dc conversions. This device is ideal for mobile platforms, automotive, and other applications that need to operate at higher switching frequencies while offering high efficiency and low output noise.

Features

• Integrated Logic Controller - This allows for precise control over the switching parameters and reduces output ripple, eliminating the need for an external controller and minimizing board space.
• High Efficiency - The device\'s low on-resistance and low capacitance enable high efficiency levels, allowing for cooler devices and extended battery life.
• High Switching Frequency - The integrated logic control lets you set the switching frequency from 1MHz to 2MHz and up to 4MHz with the optional new LT471B controller. This high frequency provides low output noise and makes it ideal for applications that need to switch at higher frequencies.

Application Fields

The LT1933IS6#TRPBF is well-suited for applications that require low output noise and high efficiency, such as mobile platforms, automotive, and IoT. Additionally, it is ideal for battery-powered applications that need to operate at higher switching frequencies. Examples include USB battery chargers, LED backlights, and wireless charging products. It is also suitable for other applications that require a regulated output in a very small form factor.

Working Principle

The LT1933IS6#TRPBF uses GaN (gallium nitride) technology for the switching element, which enhances the performance of the device. GaN switches more quickly than silicon transistors and has low on-resistance and low capacitance, resulting in higher efficiency, less power loss, and lower output ripple. The device also uses an integrated logic controller that provides precise control over switching parameters, which enables fast and efficient step-down DC/DC conversions. The logic controller sets the device\'s switching frequency, dead time, and overcurrent protection point. Finally, the device features output voltage accuracy of ±1.5%, as well as overcurrent protection and thermal shutdown.