LM2596DSADJG

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596DSADJG is a monolithic integrated circuit designed for step-down 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 supports a maximum output current of 3 A at a fixed internal switching frequency of 150 kHz. It utilizes a Buck topology and is housed in a TO-263-5 surface-mount package. The component functions within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated fixed-frequency internal oscillator operating at 150 kHz to minimize external component requirements.
• Internal loop compensation simplifies power supply design by reducing the number of necessary external parts.
• Includes TTL-compatible shutdown functionality for low-power standby mode control.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring step-down conversion
• Pre-regulator circuits for linear regulators
• Efficient buck converters for general-purpose power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific manufacturer marking and date code against official onsemi documentation to confirm authenticity. Ensure the TO-263-5 package matches the required footprint for your PCB layout. Confirm that the component version aligns with the intended thermal and electrical specifications for your application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current buck converter is needed with minimal external support. The fixed 150 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure adequate thermal management is planned, as the TO-263-5 package requires proper copper area or heatsinking for sustained 3 A loads.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2596 series of switching regulators, which are widely used for their simplicity and reliability in DC-DC conversion tasks. The DSADJG suffix indicates the adjustable output variant in a D²PAK (TO-263) surface-mount package, distinguishing it from through-hole or fixed-voltage versions within the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include the LM2596S-ADJ from Texas Instruments, which shares identical electrical characteristics and pinout configuration. Verify that any replacement maintains the same TO-263-5 package dimensions and thermal performance capabilities.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the purpose of the internal loop compensation?

Internal loop compensation reduces the number of external components required for stable operation, simplifying the overall power supply design process.

How does the TTL shutdown feature function?

The device enters a low-power standby mode when the shutdown pin is driven low, allowing for efficient power management in system-level applications.