LM2577N-15/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2577N-15/NOPB is a SIMPLE SWITCHER step-up voltage regulator from Texas Instruments, housed in an 8-pin MDIP package. It delivers a fixed 15 V output with a maximum switch current of 3 A and operates at a switching frequency of approximately 52 kHz. The device supports input voltages ranging from 4 V to 40 V and functions within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch rated for 3 A continuous current
• Fixed 15 V output option eliminates external feedback network requirements
• Internal oscillator provides stable 52 kHz switching frequency
• Includes thermal shutdown and current limit protection circuits

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated DC-DC conversion
• Battery-powered equipment needing voltage boosting from lower cell voltages
• General-purpose power supply designs utilizing through-hole mounting

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'N' confirms the through-hole MDIP-8 package variant rather than surface-mount options. Confirm 'NOPB' indicates lead-free and RoHS compliance status per current manufacturer specifications. Ensure the fixed 15 V output rating matches the target circuit design requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 3 A boost converter is required with through-hole assembly capabilities. The fixed 15 V output simplifies design compared to adjustable variants. Consider the 40 V maximum input limit and 52 kHz frequency when sizing external passive components for ripple and noise performance.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2577 family of SIMPLE SWITCHER regulators, designed for high-efficiency step-up applications. It shares core architecture with other LM2577 variants but differs in package type and output configuration. The family is known for integrating the power switch and control logic into a single monolithic IC.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2577T-15/NOPB (TO-220-5 package)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2577N-15/NOPB?

The maximum input voltage is 40 V.

Does the LM2577N-15/NOPB require an external feedback resistor network?

No, as a fixed-output variant, it does not require external feedback resistors for setting the output voltage.