LM2596S-12-EV

Voltage Regulators - DC DC Switching Regulators Overview

The EVVO LM2596S-12-EV is a fixed-output buck switching regulator IC providing a stable 12V output with a maximum current capacity of 3A. It operates within an input voltage range up to 40V and utilizes a fixed 150kHz PWM switching frequency to minimize external filter component size. The device integrates internal frequency compensation, requiring minimal external components for operation. It features comprehensive protection mechanisms including overcurrent, thermal shutdown, and short-circuit protection. The unit is housed in a TO-263-5L surface-mount package and supports an operating junction temperature range from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates all active functions for a step-down switching regulator capable of driving 3A loads with excellent line and load regulation.
• Utilizes a fixed 150kHz internal oscillator with PWM modulation to allow the use of smaller-sized filtering components.
• Includes built-in frequency compensation module, reducing the required count of external components to four.
• Features protective circuits including overcurrent limiting, thermal shutdown, and output short-circuit protection.

Voltage Regulators - DC DC Switching Regulators Applications

• Local DC/DC conversion in battery-powered equipment
• Pre-regulator stages for switching regulators
• Efficient off-line switchmode power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific manufacturer designation EVVO against the datasheet to confirm pinout compatibility and electrical tolerances. Ensure the TO-263-5L package matches the target PCB footprint. Confirm that the 12V fixed output variant meets the system requirements without needing external adjustment resistors. Check RoHS compliance status if environmental regulations apply to the final assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an input voltage between 4.5V and 40V. It is suitable for designs prioritizing simplicity due to integrated compensation and low external part count. Consider the thermal performance in the TO-263-5L package for currents approaching 3A. Verify that the 150kHz switching frequency aligns with EMI constraints and inductor availability in the design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2596 series of monolithic integrated circuit step-down voltage regulators. The series is known for providing all active functions for a buck converter, including a fixed-frequency oscillator and error amplifier. The LM2596S variant specifically denotes the surface-mount package version, distinguishing it from through-hole options like the LM2596T. The 'EVVO' suffix indicates the manufacturer branding for this specific supply chain channel.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible replacements include the Texas Instruments LM2596SX-12/NOPB and National Semiconductor LM2596SX-12. These parts share identical electrical specifications, pinouts, and functional characteristics. Verify that the replacement source confirms the same TO-263-5L or equivalent D2PAK-5 package dimensions for mechanical fit.