LM2585S-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2585S-12/NOPB is a fixed-output step-up switching regulator from Texas Instruments, part of the SIMPLE SWITCHER family. It operates with an input voltage range of 4 V to 40 V and provides a fixed output of 12 V. The device supports a maximum output current of 3 A and features a typical efficiency of 93%. It utilizes a 115 kHz switching frequency and includes internal compensation for minimal external component requirements. The unit is housed in a TO-263 (D2PAK) surface-mount package with five pins.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch eliminates the need for external high-current components
• Fixed 12 V output option simplifies design by removing feedback resistor networks
• Internal frequency compensation reduces the count of required external passive components

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring voltage step-up
• Industrial control circuits needing stable 12 V rails
• Automotive electronics operating within wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status as per manufacturer documentation. Confirm the package type matches the required PCB footprint, specifically the TO-263 form factor. Ensure thermal management strategies align with the 3 A output capability and ambient operating conditions specified in the datasheet.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from a variable or higher-than-output source voltage up to 40 V. It is suitable for designs prioritizing simplicity over adjustable output flexibility. Consider the 3 A current limit and 115 kHz switching frequency against system noise and efficiency requirements compared to adjustable variants.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2585 series of SIMPLE SWITCHER power converters. The series offers various fixed output voltages and adjustable versions. The 'S' indicates a surface-mount package, while '12' denotes the fixed 12 V output configuration. The 'NOPB' suffix typically signifies a lead-free and RoHS-compliant manufacturing variant.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2585S-ADJ/NOPB serves as an adjustable alternative within the same series. LM2587S-12/NOPB offers higher current capacity but differs in topology and pinout. Verify electrical compatibility and physical dimensions before substituting.