LTC3807MPUDC#TRPBF

Introduction

The LTC3807MPUDC#TRPBF is a DC-DC switching controller used in voltage regulator applications. It is a low-noise, high-efficiency, low-dropout regulator designed for use in distributed power supply topologies. The switching controller can operate from a single DC or AC input with or without an on-board voltage reference. It offers a large range of configuration options, allowing the user to customize the output current and voltage to fit their needs. The device can be used for a variety of applications ranging from consumer electronics to industrial automation.

Features

• Wide input voltage range: 4.5V to 36V
• High efficiency: Up to 95%
• Low noise: Low switching frequency (up to 600kHz)
• On-board voltage reference: User-selectable between 2.5V and 10V
• Output voltage programming: 0.9V to 6V
• Output current limit: Selectable between 1A and 5A
• Over temperature and short circuit protection

Applications

• DC-DC converters
• Power supplies
• Battery charging
• High efficiency regulators
• Industrial automation
• Automotive electronics
• Consumer electronics

Working Principle

The LTC3807MPUDC#TRPBF is a current-mode synchronous buck switching controller. The current-mode control scheme provides excellent line and load regulation over a wide range of input voltages and output loads. It also helps to minimize output capacitance requirements and minimize output voltage ripple, resulting in a more efficient system overall. The device is capable of operating at a switching frequency up to 600kHz and can be synchronized to an external clock signal. The device can be configured to operate either in a “current-mode” or “voltage-mode” control modes.

In addition, the device also has a slew rate control which reduces the current-mode ramp rate during the switch on or switch off voltage transitions. This helps reduce output voltage overshoot and ringing and makes the LTC3807MPUDC#TRPBF a great choice for applications that require intuitive and fast transient response.

Once configured, the LTC3807MPUDC#TRPBF is able to regulate the output voltage accurately and provide protection against over-temperature and short-circuit conditions. It is also able to provide an output voltage level trim feature that allows the user to precisely adjust the output voltage level from 0.9V to 6V.

Conclusion

The LTC3807MPUDC#TRPBF is a versatile and robust switching controller that is suitable for a wide range of voltage regulator applications. It offers low-noise, high-efficiency performance and is capable of operating from a wide input voltage range. The device can be used for a variety of applications, ranging from consumer electronics to industrial automation. It is capable of operating with or without an onboard voltage reference and provides excellent line and load regulation performance.