LM2842XMKX-ADJL/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2842XMKX-ADJL/NOPB is a SIMPLE SWITCHER step-down DC/DC regulator manufactured by Texas Instruments. It operates with an input voltage range of 4.5 V to 42 V and provides a maximum output current of 600 mA. The device features an adjustable output voltage ranging from 765 mV to 34 V. It integrates a fixed switching frequency of 550 kHz and includes a shutdown pin for power management. The component is housed in a thin SOT-23 (TSOT) 6-pin surface-mount package, designed for compact applications within an operating temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side N-channel MOSFET for efficient buck conversion
• Features a fixed 550 kHz switching frequency to minimize external component size
• Includes a dedicated shutdown pin for low-power standby modes
• Supports adjustable output voltages via external resistor feedback

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated power rails
• Automotive electronics compliant with AEC-Q100 standards
• Distributed power architectures in embedded systems
• Battery-powered devices needing efficient voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact part number suffix against official Texas Instruments documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the TSOT-6 thin package dimensions match your PCB footprint requirements. Check for RoHS compliance status as indicated in the latest datasheet revision. Ensure the ordering prefix matches the specific thermal and electrical grade intended for your design environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-output buck converter is required with an input voltage up to 42 V. It is suitable for designs prioritizing small form factor due to the thin SOT-23 package. Consider the 600 mA output limit and 550 kHz frequency when determining inductor and capacitor values. Verify that the application does not require multiple independent outputs, as this is a single-output device.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM284x family of SIMPLE SWITCHER regulators, which are known for integrating power switches to reduce solution size. The LM2842 variant specifically offers 600 mA capability, distinguishing it from lower-current counterparts like the LM2841. The 'X' suffix typically denotes a specific reel quantity or packaging variation defined by the manufacturer.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2842XQMKX/NOPB: Automotive-grade version with AEC-Q100 qualification. LM2842XMK-ADJL/NOPB: Standard commercial grade variant.