LV2842XLVDDCR

Voltage Regulators - DC DC Switching Regulators Overview

The LV2842XLVDDCR is a SIMPLE SWITCHER step-down DC/DC regulator from Texas Instruments, housed in a thin SOT-23-6 package. It supports an input voltage range of 4.5 V to 42 V and delivers up to 600 mA output current. The device features a low RDS(ON) internal switch (typical 0.9 Ω) for high efficiency (typical 85%). Operating frequencies include 550 kHz (X option) or 1.25 MHz (Y option). It utilizes a fixed feedback voltage of 0.765 V and includes soft-start, thermal shutdown, and UVLO.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a low on-resistance power switch for efficient buck conversion
• Offers flexible switching frequency options to optimize external component size
• Includes comprehensive protection mechanisms such as thermal shutdown and short-circuit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Power regulation from non-stabilized sources
• Battery-powered systems requiring efficient step-down conversion
• General-purpose embedded applications with wide input voltage requirements

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm switching frequency variants (X vs Y) and ensure compatibility with required operating conditions. Confirm package integrity and authenticity through authorized channels, as markings may vary by manufacturing lot. Cross-reference pinouts carefully due to similar family members.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for inputs up to 42 V with moderate load currents around 600 mA. Consider the available switching frequencies to balance EMI performance against passive component size. Ensure the application benefits from the integrated protections and low quiescent current during shutdown states.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM284x family of SIMPLE SWITCHER regulators, which are designed for high-efficiency power management in space-constrained environments. The family includes variants optimized for different current levels, providing a scalable solution for various DC/DC conversion needs within the same footprint and control architecture.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct equivalents like LM2842XMK-ADJL/NOPB for pin-compatible alternatives in different packages. Verify functional overlap with other TI buck converters if specific frequency or current ratings differ.