LM34919CQTLX/NOPB

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

LM34919CQTLX/NOPB - PMIC - Voltage Regulators - DC DC Switching Regulators

The LM34919CQTLX/NOPB, by Texas Instruments, is an Adaptive on-time DC-DC buck converter with integrated FETs. It is an efficient, standard-current, synchronous step-down switching voltage regulator for use in embedded processor and portable applications. The IC is capable of producing an adjustable output voltage from 0.8V up to 4.5V with a minimum output current of 0.25A, while providing up to 95% efficiency. Operating at a fixed frequency of 2.2 MHz, the LM34919CQTLX/NOPB features an integrated synchronous rectifier, a built-in Reference buffer, PLL circuit, system enable pin, and TSENSE input, which ensure a reliable and stable power supply solution while minimizing external components.

Application Field

The LM34919CQTLX/NOPB IC is ideal for use in the following types of applications: low-power portable electronics, computing equipment, consumer electronics, laptops, digital video cameras, cellular phones, PDAs and handheld PCs, digital still cameras, motor controllers, automotive electronics, and lighting applications.

Working Principle

The LM34919CQTLX/NOPB IC is a synchronous buck converter with adaptive on-time control. It contains integrated power MOSFETs, which allow for fast switching transitions and efficient operation. The PLL circuit allows for the switching frequency to be synchronized with the input voltage, which allows for more efficient SIMD operation. The integrated synchronous rectifier ensures that efficiently converts the power being transferred between the input and output rails. The regulator features an input voltage tolerance range of 4.5V to 18V, providing a low voltage requirement while still being capable of providing a very wide output voltage range.

The LM34919CQTLX/NOPB IC also includes a TSENSE input, which allows for monitoring of the temperature of the power MOSFETs and the switching node. This allows for the output voltage to remain regulated even as the temperature of the IC increases. The device also includes a system enable pin for manually enabling and disabling the converter.

The LM34919CQTLX/NOPB IC is an efficient, powerful, and reliable power solution that is capable of providing adjustable output voltages from 0.8V up to 4.5V with a minimum output current of 0.25A while providing up to 95% efficiency. With an integrated synchronous rectifier, PLL circuit, system enable pin, and TSENSE input, the LM34919CQTLX/NOPB is an ideal solution for low-power portable electronics, computing equipment, consumer electronics, laptops, digital video cameras, cellular phones, PDAs and handheld PCs, digital still cameras, motor controllers, automotive electronics, and lighting applications.

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