LM2577SX-ADJ/NOPB

$6.29

Description：IC REG BST FLYBACK ADJ 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:3e34193176f4 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

LM2577SX-ADJ/NOPB is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BST FLYBACK ADJ 3A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2577SX-ADJ/NOPB

Description：IC REG BST FLYBACK ADJ 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive or Negative
Topology：Boost, Flyback, Forward Converter
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.5V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：1.23V
Voltage - Output (Max)：60V (Switch)
Current - Output：3A (Switch)
Frequency - Switching：52kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package：TO-263 (DDPAK-5)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2577SX-ADJ/NOPB

LM2577SX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2577SX-ADJ/NOPB is a step-up voltage regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments. It operates in boost and flyback topologies with an adjustable output voltage range of 1.23 V to 60 V. The device supports a maximum output current of 3 A and features a switching frequency between 48 kHz and 56 kHz. It accepts input voltages from 3.5 V to 40 V and functions within a junction temperature range of -40 °C to +125 °C. The component is housed in a TO-263-5 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated monolithic power switch eliminates external transistor requirements
Internal oscillator provides stable fixed-frequency operation
Built-in thermal shutdown protects against overheating conditions

Voltage Regulators - DC DC Switching Regulators Applications

General-purpose DC-DC boost converter circuits
Flyback converter designs for isolated power supplies
Positive-to-negative voltage inversion applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix /NOPB to confirm lead-free compliance and RoHS status. Ensure the ordering code matches the specific TO-263-5 package variant. Cross-reference manufacturer documentation for any recent product change notices or lifecycle status updates before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a non-isolated boost topology is required for currents up to 3 A. The internal switch simplifies design compared to discrete solutions. Consider the thermal performance of the TO-263 package for heat dissipation requirements in enclosed environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2577 series of simple switchers, designed for ease of use with minimal external components. It serves as a direct replacement for older National Semiconductor versions, maintaining functional compatibility while adhering to modern environmental standards.