LM2595DSADJG

Voltage Regulators - DC DC Switching Regulators Overview

The LM2595DSADJG is a monolithic integrated circuit designed for simple and convenient step-down (buck) switching regulator applications. It operates with an input voltage range of 4.5 V to 40 V and provides an adjustable output voltage from 1.23 V to 37 V. The device guarantees a maximum output load current of 3.0 A with excellent line and load regulation. It features a fixed 150 kHz internal oscillator, TTL shutdown capability, and low power standby mode with typical quiescent current of 80 µA. Integrated thermal shutdown and current limiting protect the device under fault conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 3.0 A power switch enables high-efficiency buck conversion without external pass transistors.
• Fixed 150 kHz internal oscillator allows for the use of small-sized inductors and capacitors.
• TTL shutdown pin facilitates logic control for low-power standby modes.
• Internal loop compensation minimizes the number of required external components.

Voltage Regulators - DC DC Switching Regulators Applications

• Simple high-efficiency step-down (Buck) regulators
• Pre-regulators for linear regulators
• On-card switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation on official datasheets, as the LM2595 family originated with Texas Instruments. Confirm that the specific suffix 'DSADJG' corresponds to the TO-263-5 surface-mount package and adjustable output variant. Ensure RoHS compliance status matches project requirements by checking the latest component documentation provided by onsemi.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 3 A buck converter is required with a wide input voltage range up to 40 V. The adjustable output version offers flexibility for various voltage rails. Consider the TO-263-5 package for adequate thermal dissipation in space-constrained designs. Verify that the 150 kHz switching frequency aligns with electromagnetic interference constraints and passive component size goals.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2595 series of SIMPLE SWITCHER power converters. While originally developed by Texas Instruments, onsemi manufactures compatible versions. The series is characterized by its simplicity, requiring only four external components for operation. It serves as a standard solution for medium-current DC-DC conversion in industrial and consumer electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the LM2595S-ADJ/NOPB from Texas Instruments. Other compatible adjustable buck regulators with similar current ratings should be evaluated based on pin compatibility and thermal performance specifications.