LM2587T-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2587T-ADJ/NOPB is a SIMPLE SWITCHER step-up/flyback regulator from Texas Instruments, housed in a TO-220 package. It operates with an input voltage range of 4 V to 40 V and delivers up to 5 A output current. The adjustable output voltage spans from 1.23 V to 60 V. Key electrical parameters include a switching frequency of 52 kHz, line regulation of 50 mV, and load regulation of 50 mV. Efficiency reaches 80%. The device supports operation within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 5A power switch for high-current step-up applications
• Features fixed-frequency current-mode control architecture
• Includes internal compensation for simplified external component selection
• Provides thermal shutdown protection for enhanced reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power systems requiring wide input ranges
• Battery-powered boost converters
• General-purpose step-up DC/DC conversion
• Flyback topology implementations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix NOPB indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the TO-220 through-hole package variant matches your PCB footprint requirements. Ensure the adjustable output configuration aligns with your feedback resistor network design. Cross-reference the datasheet revision date to validate all electrical specifications against your system constraints before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 5A boost capability is required with a wide input voltage window up to 40V. The adjustable output allows flexibility for various target voltages between 1.23V and 60V. Consider the TO-220 package for superior thermal dissipation compared to smaller surface-mount alternatives. Evaluate the 52kHz switching frequency against EMI sensitivity requirements in your specific application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2587 series of SIMPLE SWITCHER regulators, designed for high-efficiency step-up and flyback conversions. It represents a legacy but reliable solution for medium-power applications where through-hole mounting is preferred. The series is characterized by integrated power switches and simplified external component requirements, distinguishing it from lower-current counterparts like the LM2586.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers: LM2587T-ADJ.