LV5857MX-TLM-H

Voltage Regulators - DC DC Switching Regulators Overview

The LV5857MX-TLM-H is a fixed-frequency buck switching regulator manufactured by onsemi. It operates with an input voltage range of 8 V to 18 V and provides a regulated 5 V output at up to 3 A. The device integrates a power switch and functions at a switching frequency of 340 kHz. It is housed in an MFP-8 surface-mount package and supports an operating temperature range from -20°C to +80°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency power switch for compact design
• Fixed switching frequency simplifies external component selection
• Includes thermal shutdown protection for system reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring stable 5V logic supplies
• Industrial control systems with 12V or 24V bus architectures
• Embedded computing modules needing efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TLM-H against the official datasheet to confirm package type and tape-and-reel specifications. Ensure the procurement channel is an authorized distributor to guarantee component authenticity and traceability. Check for recent product change notifications regarding material composition or manufacturing site updates before finalizing orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from an 8-18V input source. The 3A current capability suits moderate load applications. Consider the 340kHz frequency for balancing efficiency and passive size. Verify that the MFP-8 package fits the PCB footprint constraints and that the -20C to +80C range meets environmental requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to onsemi's PMIC portfolio, specifically within the switching voltage regulators subcategory. It serves as a DC-DC converter solution for power management needs. The MFP-8 package indicates a small form factor suitable for space-constrained designs compared to larger through-hole or standard SOP packages.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the official datasheet for direct pin-to-pin compatible alternatives within the same series. Verify that any substitute maintains the 3A output current and 5V fixed output specification. Ensure the replacement supports the same 8-18V input range and MFP-8 package outline.