LM2575-12BN

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

Power supply management integrated circuits (PMICs) are devices designed to regulate and control the flow of power to other integrated circuits. There are several types of PMICs, including voltage regulators, DC-DC switching regulators and linear regulators. Among these, DC-DC switching regulators are used to convert a higher-voltage input source to a lower output voltage. The LM2575-12BN is a low-dropout voltage regulator from Texas Instruments. It is a member of the LM2575 series, which provides up to 1.5A of load current with a single resistor for current limiting. This article will discuss the application field and working principle of the LM2575-12BN.

The LM2575-12BN can be used in a wide range of applications, such as motor control, consumer electronics, automotive electronics, HVAC systems, audio and video equipment, telecom equipment, and industrial control systems. It is also used in laptop computers, laser printers, digital cameras, and other consumer electronic devices. The device has a wide input voltage range of 4.5V to 15V, and an output voltage range of 1.2V to 12V. It can be used to regulate voltage in both buck and boost configurations, and offers excellent efficiency and accurate current and voltage regulation.

In terms of operating principle, the LM2575-12BN is a buck/boost switching regulator. It is built around an internal High Side MOSFET and synchronous rectifier. The input voltage is supplied to the High Side MOSFET, which is used to regulate the output voltage. The internal MOSFET is then followed by a synchronous rectifier, which acts as a voltage doubler when in Buck mode, and as a voltage halver when in Boost mode. The output voltage is then regulated via an internal voltage control circuit and output control loop.

The LM2575-12BN provides a wide range of features, such as Overvoltage Protection (OVP), Undervoltage Protection (UVP), Overcurrent Protection (OCP) and Short-Circuit Protection (SCP). In addition, there is also an optional frequency feedback loop to help maintain constant frequency and reduce output voltage ripple. The device also provides a wide range of protection features, including overcurrent protection, thermal shutdown and output current limiting. Finally, the LM2575-12BN offers excellent efficiency, with efficiency up to 95%.

In summary, the LM2575-12BN is a low-dropout voltage regulator from Texas Instruments. It provides up to 1.5A of load current with a single resistor for current limiting, and has a wide input voltage range of 4.5V to 15V and output voltage range of 1.2V to 12V. It is a buck/boost switching regulator built around an internal High Side MOSFET and synchronous rectifier, and is used in a variety of applications, such as motor control, consumer electronics, automotive electronics, HVAC systems, audio and video equipment, telecom equipment, and industrial control systems. The device offers a wide range of features, including Overvoltage Protection, Undervoltage Protection, Overcurrent Protection, Short-Circuit Protection, an optional frequency feedback loop, overcurrent protection, thermal shutdown, and output current limiting, and offers up to 95% efficiency.

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