LM2842YQMK/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2842YQMK/NOPB is a SIMPLE SWITCHER step-down DC/DC regulator from Texas Instruments. It operates with an input voltage range of 4.5 V to 42 V and provides an adjustable output voltage from 765 mV to 34 V. The device delivers a maximum output current of 600 mA at a switching frequency of 1.25 MHz. It features a low quiescent current of 1.3 mA and includes a shutdown function. The component is qualified under AEC-Q100 standards for automotive applications and functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated buck converter topology supporting high input voltages up to 42 V
• AEC-Q100 qualified for automotive reliability requirements
• Compact SOT-23-THIN-6 package design for space-constrained layouts
• Low standby power consumption via integrated shutdown capability

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics modules
• Industrial sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix YQMK against the official datasheet to confirm the specific tape-and-reel packaging configuration and temperature grade. Ensure the ordering part number matches the required pinout and electrical characteristics exactly. Cross-reference the manufacturer's latest documentation to validate RoHS compliance status and any recent product change notifications affecting this specific variant.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring wide input voltage tolerance in automotive environments. The 1.25 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the thermal performance within the thin SOT-23 package for high-load applications. Verify that the required output voltage range falls within the specified 765 mV to 34 V limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2842 family of SIMPLE SWITCHER regulators, designed for efficient power conversion in compact form factors. It shares architectural similarities with other Texas Instruments buck converters but is distinguished by its specific automotive qualification and input voltage range. The family targets applications demanding high reliability and minimal board space.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2842XQMK/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by the LM2842YQMK/NOPB?

The device supports a maximum input voltage of 42 V.

Is the LM2842YQMK/NOPB suitable for automotive applications?

Yes, it is AEC-Q100 qualified for use in automotive electronics.

What is the switching frequency of this regulator?

The internal oscillator operates at a fixed frequency of 1.25 MHz.