LT3507AIFE

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LT3507AIFE is a current mode pulse width modulation (PWM) DC/DC 4-channel synchronous switching regulator used for power-management applications.

The device supports a wide input voltage range from 4.5 V to 24V and provides four synchronous step-down DC/DC-converter channels. One of the PWM channels is designed as an output current limit control, while the remaining three are designed to control output voltages. By using three additional control inputs, the output voltage and current can be adjusted both in steady state and transient conditions. This allows for flexible power supply architectures and makes the LT3507AIFE adaptable for various applications.

Application Field

The LT3507AIFE is a highly efficient and reliable DC/DC switching regulator ideal for powering loads such as FPGAs, micro-controllers and other ancillary low-power electronics. The main application fields of the LT3507AIFE are in power-management, battery charging systems, DC/DC converters, solar inverters and automotive embedded systems, where high efficiency and stable power supply is essential.

Working Principle

The LT3507AIFE employs a synchronous Buck architecture in order to achieve high efficiency and improve power conversion quality. The main principle of operation of the PWM converter consists of a high-side MOSFET switch and a low-side MOSFET switch connected in a H-bridge configuration. When the high-side switch is on, the input voltage is applied to the inductor, causing it to store energy in the form of a magnetic field. When the high-side switch is turned off, the stored energy is drawn from the inductor and applied to the output capacitor, resulting in a step-down in the output voltage. The cycle repeats as long as power is required, resulting in a regulated and steady output voltage.

Flexible Output Voltage and Current Control

The LT3507AIFE offers a wide range of output voltage settings with flexible external control. The output voltage can be adjusted via external voltages or resistor dividers, depending on the application. In addition, all three output channels have their own output current limit controlling inputs and a programmable soft start. This makes the LT3507AIFE a suitable solution for hybrid DC/DC power supply architectures with high flexibility.

Safety Features

The LT3507AIFE offers a variety of safety features to protect the system in case of faults. It supports over-temperature protection, absolute maximum rating protection, output overvoltage warning, input undervoltage and output short-circuit protection. These features can be enabled and disabled through a single configuration input.

The LT3507AIFE is an ideal solution for power-management applications and provides a very high efficiency and a small form-factor. It is ideally suited for applications where high efficiency and reliable power supply are needed, such as battery charging systems, automotive electronics, and distributed power supplies.

The specific data is subject to PDF, and the above content is for reference