LM34919CQSD/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM34919CQSD/NOPB is an automotive-grade DC-DC step-down converter from Texas Instruments. It operates with an input voltage range of 4.5V to 50V and provides a single adjustable output between 2.5V and 45V. The device delivers up to 0.6A of output current and features a fixed switching frequency of 2.6MHz. Packaged in a 12-pin WSON with exposed pad, it is qualified under AEC-Q100 standards for reliability in harsh environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards
• Ultra-small footprint design suitable for space-constrained layouts
• Wide input voltage capability for flexible power architectures

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive camera module power supplies
• Image sensor core and I/O voltage regulation
• On-board infotainment system power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'QSD' against the manufacturer's official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the component meets the required AEC-Q100 grade for your target application environment. Cross-reference the ordering part number with authorized distributors to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring high-frequency operation to minimize passive component size. The 2.6MHz switching frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the thermal performance of the WSON package when determining PCB copper area requirements for heat dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM34919C family of ultra-small wide VIN buck converters. It is designed specifically for automotive systems where board space is limited and high efficiency is critical. The C-series designation typically indicates specific automotive qualification and performance characteristics distinct from standard industrial variants.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM34919TL/NOPB is a documented alternative within the same family, offering similar functionality in a different package configuration.