LM2577SX-12/NOPB

$5.75

Description：IC REG BST FLYBACK 12V 3A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:009abd0536bb 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-12/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 12V 3A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2577SX-12/NOPB

Description：IC REG BST FLYBACK 12V 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：Fixed
Number of Outputs：1
Voltage - Input (Min)：3.5V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：12V
Voltage - Output (Max)：-
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-12/NOPB

LM2577SX-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2577SX-12/NOPB is a SIMPLE SWITCHER step-up voltage regulator from Texas Instruments, housed in a TO-263-5 surface-mount package. It delivers a fixed 12V output with a maximum current of 3A. The device operates within an input voltage range of 4V to 40V and supports boost, flyback, and forward topologies. Internal switching frequency ranges from 48kHz to 56kHz. It functions across a temperature range of -40°C to +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates a 3A switch for high-current step-up applications
Includes internal compensation for simplified external component requirements
Features thermal shutdown protection for operational safety

Voltage Regulators - DC DC Switching Regulators Applications

Industrial power supply systems
Battery-powered equipment requiring voltage boosting
General-purpose DC-DC conversion circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free and RoHS compliance per Texas Instruments standards. Confirm the TO-263-5 package variant matches design constraints. Ensure the fixed 12V output specification aligns with target load requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an input source between 4V and 40V. It is suitable for designs needing up to 3A continuous current in a surface-mount form factor. Consider the 52kHz typical switching frequency for filter component sizing.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2577 series of SIMPLE SWITCHER regulators. It shares architectural similarities with other members like the LM2577S-ADJ but provides a fixed voltage output instead of adjustable regulation. It complements the LM2576 buck regulators in TI's portfolio.