LM2595T-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2595T-ADJ is a step-down switching voltage regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments following its acquisition of National Semiconductor. It operates at a fixed 150 kHz switching frequency and delivers up to 1 A of output current. The device supports an adjustable output voltage range from 1.2 V to 37 V. It accepts input voltages between 4.5 V and 40 V. The component utilizes a TO-220-5 through-hole package and functions within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch rated for 1 A continuous load current
• Fixed internal oscillator operating at 150 kHz for simplified external component selection
• Built-in thermal shutdown circuitry to protect against excessive junction temperatures
• Adjustable output voltage capability via external resistor divider network

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring buck conversion
• Pre-regulator stages for linear post-regulators
• Battery-powered applications utilizing step-down topology

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix matches the specific package variant required, as the LM2595 series includes both surface-mount (S) and through-hole (T) options. Confirm RoHS compliance status if restricted substances are a constraint. Ensure the manufacturer designation reflects Texas Instruments, as National Semiconductor assets were acquired. Cross-reference the datasheet revision date to confirm pinout and electrical parameter consistency with your design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 1 A buck converter solution is needed with minimal external parts. The through-hole TO-220 package facilitates easier prototyping and heat dissipation compared to surface-mount variants. Choose the ADJ suffix when a non-standard or variable output voltage is required rather than using fixed-voltage versions. Consider the 150 kHz frequency trade-off between component size and efficiency.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM259x family of SIMPLE SWITCHER power converters, which includes the LM2575, LM2596, and LM2594. These devices share similar control architectures but differ in current ratings and package types. The LM2595 specifically targets 1 A applications, bridging the gap between lower-current regulators and higher-power counterparts like the LM2596.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

• LM2595S-ADJ/NOPB
• LM2596T-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2595T-ADJ?

The maximum recommended input voltage is 40 V.

Does the LM2595T-ADJ include short-circuit protection?

Yes, the device incorporates cycle-by-cycle current limiting and thermal shutdown protection.