LM2734ZMK

Voltage Regulators - DC DC Switching Regulators Overview

The LM2734ZMK is a high-frequency step-down DC-DC regulator manufactured by Texas Instruments. It operates with an input voltage range of 3 V to 20 V and provides an adjustable output voltage from 800 mV to 18 V. The device supports a maximum output current of 1 A and utilizes a fixed switching frequency of 1.6 MHz. It is housed in a SOT-23-Thin-6 package and is qualified under the AEC-Q100 standard for automotive applications. The operational junction temperature range extends from -40 °C to +125 °C, ensuring reliability in demanding environments.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous buck converter topology for efficient power conversion
• Automotive qualification compliant with AEC-Q100 standards
• Fixed internal switching frequency reduces external component count
• Adjustable output voltage capability via external resistor network

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 specific suffix ZMK against official Texas Instruments documentation to confirm package type and automotive grade status. Ensure compatibility with your PCB footprint for the SOT-23-Thin-6 package. Cross-reference the datasheet for thermal performance requirements under your specific load conditions. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive environments requiring robust voltage regulation within a compact form factor. The 1.6 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the input voltage source remains within the 3 V to 20 V window. Consider thermal dissipation capabilities if operating near the maximum 1 A output current limit in enclosed spaces.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2734 family of high-frequency step-down regulators designed for space-constrained applications. The ZMK suffix specifically denotes the SOT-23-Thin-6 package variant. As an automotive-qualified device, it differs from commercial-grade counterparts by meeting stricter reliability and temperature cycling standards required for vehicle integration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2734XQMK/NOPB is listed as a parameter equivalent substitute.