LM34919BQTLX/NOPB

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The LM34919BQTLX/NOPB is a member of a family of high efficiency monolithic synchronous buck switching voltage regulators, which is a DC-DC switching regulator. It features an integrated 120 mΩ N-channel MOSFET for high efficiency applications. The LM34919BQTLX/NOPB operates from a 4.5V to 42V input voltage range, and delivers up to 10A of continuous output current. The device provides adjustable output voltage from 0.8V to 34V, and allows for excellent line and load regulation. Additionally, the LM34919BQTLX/NOPB offers multiple timers, protection features, and a wide range of available outputs. Furthermore, the LM34919BQTLX/NOPB is designed to operate over the temperature range from -40°C to 85°C and is offered in a thermally enhanced Power Package TSSOP-20 or WFBGA-36 packages.

The LM34919BQTLX/NOPB is suitable for several applications, primarily those requiring low output ripple and transition times, such as medical and industrial equipment, distributed power systems, battery chargers, and telecom power supplies. Additionally, it is suitable for powering server and storage systems, test and measurement equipment, and portable systems.

The LM34919BQTLX/NOPB is a non-synchronous buck regulator which delivers constant current over a wide input voltage range with output voltage between 0.8V and 34V. The regulator continuously adjusts its output current to keep the output voltage within a specific switching frequency range; this allows for efficient power conversion and energy savings relative to linear regulators. The device also has user-selectable switching frequency and soft-start, over temperature, and short-circuit protection.

The device utilizes a voltage-mode PWM control architecture consisting of an error amplifier, a voltage reference, and a logic circuit. Using the voltage reference and error amplifier, the LM34919BQTLX/NOPB quickly compares the input voltage to the desired output voltage and adjusts the current delivered to maintain the output voltage within the switching frequency. This allows for a fast transient response while still efficiently regulating the output voltage.

The LM34919BQTLX/NOPB also features thermal foldback and under-voltage lockout to protect the regulator and its load from output and input over-current and under-voltage conditions. The device is capable of operating over the temperature range of -40°C to 85°C and is offered in thermally enhanced Power Package TSSOP-20 or WFBGA-36 packages. The LM34919BQTLX/NOPB is also compatible with both leaded and lead-free soldering processes.

The LM34919BQTLX/NOPB is an easy to use, robust and efficient DC-DC switching regulator, providing excellent performance over a wide input voltage range with adjustable outputs up to 34V. The device\'s multiple timers, protection features, and a wide range of available outputs make it suitable for use in medical, industrial, and telecom applications requiring low output ripple and transition times, as well as server and storage, test and measurement, and portable systems requiring increased efficiency and power savings.

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