LM2596HVS-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596HVS-5.0 is a fixed-output buck switching regulator manufactured by UMW, providing a stable 5V output with a maximum current of 3A. It operates within an input voltage range up to 57V and utilizes a fixed 150kHz PWM frequency for efficient power conversion. The device features a TO-263-5L surface-mount package and supports an operating temperature range from -40°C to 125°C. Designed for high efficiency, it integrates internal frequency compensation and protection circuits.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 150kHz fixed-frequency oscillator and internal frequency compensation to minimize external component requirements.
• Includes comprehensive protection mechanisms such as thermal shutdown, current limiting, and secondary over-current protection with frequency folding.
• Supports TTL-compatible shutdown capability for low-power standby operation.

Voltage Regulators - DC DC Switching Regulators Applications

• Direct regulation from 24V industrial bus lines to 5V logic supplies
• Pre-regulation stages for downstream linear regulators
• Battery-powered systems requiring step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer marking on the component surface matches UWM specifications. Confirm the suffix 'S' indicates the surface-mount TO-263 variant. Ensure the specific '-5.0' designation aligns with the required 5V fixed output voltage rather than adjustable or other fixed versions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 3A buck converter is needed from high-voltage inputs up to 60V. The fixed 5V output simplifies design compared to adjustable variants. Consider thermal management requirements due to the non-synchronous topology and significant voltage drop if input voltages are near the maximum limit.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2596HV series, representing the high-voltage iteration of the classic LM2596 buck regulator family. While standard LM2596 models typically support inputs up to 40V, the HV variant extends this capability to handle higher input rails, making it suitable for automotive and industrial applications with wider voltage fluctuations.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include LM2596HVS-5.0 from other manufacturers such as HGSEMI or TDSEMIC, provided they adhere to the same pinout and electrical specifications. Cross-reference datasheets to ensure identical thermal characteristics and protection thresholds.