LM34925MRX/NOPB

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The LM34925MRX/NOPB is a DC-DC switching regulator controller that is specifically designed for automotive Power Edge applications. It supports a wide input voltage range of 1.8V – 5V and can operate from a single Li+ cell or multiple-series of Li+ cells. The controller also features over voltage and under voltage protection, to ensure safe operation in the automotive environment. It is capable of delivering up to 2 A continuous output, and can support both synchronous and asynchronous rectification when used with an external MOSFET.

The device features an integrated 1.8V linear regulator that can provide a regulated output, reducing the stress placed on the system in noisy and transient automotive power environments. Additionally, it has a programmable loop frequency that can be adjusted according to application needs, with an independent SS/EN pin to dynamically control the output power.

The LM34925MRX/NOPB has an available diagnostic pin that provides information related to output voltage regulation and fault conditions, which enhances system reliability. The output voltage can be DC-coupled directly to the load for more space saving, and the device also has a power good output for users to monitor the output voltage.

The macrocell of the LM34925MRX/NOPB is specifically designed for high efficiency at low current ranges and high output power, with low quiescent current and a PAS circuitry to maximize the power efficiency of the system. It supports a wide range of Linear Architraions like PWM, PFM, and Burst Mode Control. The average current accuracy of the device is improved through digital feedback. The device is also integrated with a low on resistance FET driver to protect the ground loops for more reliable operation.

The available protections for the device includes over-voltage protection, under-voltage protection, current-limit protection, and internal thermal management. The LM34925MRX/NOPB is offered in a MiniSO-14 package, with a small footprint which makes it suitable for use in automotive power edge systems. This device is AEC-Q100 qualified, making it suitable for use across all automotive applications.

The LM34925MRX/NOPB is a versatile, high efficiency DC-DC step-down switching regulator controller, designed for automotive power edge applications. It features an integrated 1.8V linear regulator, programmable loop frequency, over-voltage and under-voltage protection, power good output, diagnostic pin, low on-resistance FET driver and AEC-Q100 qualification. It offers a wide range of linear architectures, high efficiency at low current ranges, and low quiescent current operation. It is packaged in a MiniSO-14 package for more space efficient integration.

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