LM2596DP-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2596DP-ADJ is a monolithic integrated circuit step-down switching regulator from the TAEJIN SIMPLE SWITCHER series. It provides an adjustable output voltage ranging from 1.2 V to 37 V with a maximum output current of 3 A. The device operates at a fixed switching frequency of 150 kHz, allowing for the use of smaller filter components compared to lower-frequency regulators. It features a wide input voltage range and includes internal frequency compensation. The package type is TO-263-5 (D2PAK), suitable for surface mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 150 kHz internal oscillator enables compact passive component selection
• Adjustable output voltage capability across a wide operational range
• Integrated thermal shutdown and two-stage frequency-dropping current limit protection
• TTL-compatible shutdown pin supports low-power standby mode operation

Voltage Regulators - DC DC Switching Regulators Applications

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators
• Positive to negative converter (buck-boost) circuits
• Negative step-up converters

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific ordering suffix matches the required package variant and temperature grade. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations. Ensure the supplier provides valid traceability data for quality assurance purposes. Cross-reference the part number against the latest datasheet revision to confirm pinout compatibility and electrical specifications before integration into production designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a buck topology is required with up to 3 A load capacity. The adjustable version is appropriate for custom voltage requirements between 1.2 V and 37 V. Consider the 150 kHz switching frequency for balancing efficiency and component size. Evaluate the thermal performance of the TO-263-5 package relative to the expected ambient temperature and heat dissipation constraints in the target application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2596 family of switching voltage regulators. The series includes fixed-output variants (3.3 V, 5 V, 12 V) and adjustable versions. The DP suffix typically denotes the TO-263-5 surface mount package. The family is characterized by its simplicity, requiring only four external components for basic operation, and its robust protection features including over-current and over-temperature shutdown.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include the LM2596S-ADJ/NOPB from Texas Instruments and generic equivalents such as the HGCLM2596T-ADJ. Verify that alternative sources maintain identical pinouts, thermal characteristics, and electrical parameters. Ensure that any replacement part adheres to the same safety and regulatory standards required for the original design.