LM2596S-ADJ-EV

Voltage Regulators - DC DC Switching Regulators Overview

The EVVO LM2596S-ADJ-EV is a high-voltage step-down switching regulator IC from the SIMPLE SWITCHER family. It integrates all active functions for a buck converter, supporting an input voltage range up to 40V and delivering a maximum output current of 3A. The adjustable version allows output voltages ranging from 1.23V to 37V via external feedback resistors. Operating at a fixed 150kHz frequency, it utilizes PWM modulation with a linear duty cycle range of 0% to 100%. The device features built-in thermal shutdown and current limiting protection, ensuring reliable operation within a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates complete active functions for a 3A buck converter with excellent line and load regulation.
• Utilizes a 150kHz fixed-frequency internal oscillator to enable the use of smaller filter components.
• Includes built-in thermal shutdown and current limit protection for robust system reliability.
• Supports TTL shutdown capability and low-power standby mode with typical quiescent current of 80µA.

Voltage Regulators - DC DC Switching Regulators Applications

• Efficient point-of-load DC-DC conversion in industrial control systems
• On-board switching regulators for automotive electronics
• Positive-to-negative converter circuits
• Battery-powered equipment requiring stable step-down power

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific manufacturer prefix (EVVO) against the datasheet header to confirm component origin, as this part number structure is widely replicated by multiple semiconductor vendors. Ensure the package type matches the required PCB footprint, typically TO-263 or D2PAK variants. Confirm that the adjustable output configuration aligns with the circuit design requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a high-efficiency, single-output buck converter is needed for inputs up to 40V. It is suitable for designs requiring adjustable output voltages between 1.23V and 37V with a continuous load current of 3A. Consider the thermal performance and heat dissipation requirements associated with the TO-263 package under heavy load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2596 series of monolithic integrated circuits designed for simple switcher applications. The 'S' suffix indicates the surface-mount TO-263 package, while 'ADJ' denotes the adjustable output voltage variant. The 'EVVO' prefix identifies the specific manufacturer producing this version of the standard buck regulator topology.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct functional substitutes include the Texas Instruments LM2596S-ADJ and equivalent parts from manufacturers such as UMW, HGSEMI, and TDSEMIC. Verify pin compatibility and thermal characteristics when replacing with generic equivalents from other suppliers.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by the LM2596S-ADJ-EV?

The device supports an input voltage range up to 40V.

How is the output voltage adjusted in this model?

The output voltage is adjustable from 1.23V to 37V using two external feedback resistors connected to the adjust pin.

Does this IC include protection features?

Yes, it includes thermal shutdown and current limiting protection to safeguard the device under fault conditions.