LM2587S-3.3

$5.51

Description：IC REG BST FLYBACK 3.3V 5A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube

SKU:035052cd3a21 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2587S-3.3 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 3.3V 5A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2587S-3.3

Description：IC REG BST FLYBACK 3.3V 5A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive
Topology：Boost, Flyback, Forward Converter
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：4V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：5A (Switch)
Frequency - Switching：100kHz
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 LM2587S-3.3

LM2587S-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2587S-3.3 is a SIMPLE SWITCHER step-up/flyback regulator from Texas Instruments, featuring a fixed 3.3V output and TO-263-5 package. It operates with an input voltage range of 4V to 40V and delivers up to 5A output current at a 100kHz switching frequency. The device integrates a 5A/65V NPN power switch, current-mode control, and internal soft-start. It supports Boost and Flyback topologies within a -40°C to +125°C operating temperature range.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Current-mode control architecture for improved transient response and line regulation
Integrated 5.0A, 65V NPN power switch for high-current capability
Internal 100kHz fixed-frequency oscillator minimizing external magnetic component size
Built-in protection mechanisms including thermal shutdown, current limiting, and undervoltage lockout

Voltage Regulators - DC DC Switching Regulators Applications

Step-up (Boost) converter circuits
Flyback converter designs
Positive-to-negative inverter applications
Forward converter implementations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics. Ensure the ordering part number matches the required package type and temperature rating. Cross-reference manufacturer documentation to validate RoHS compliance status and any recent product lifecycle changes before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range and high output current are required. The fixed 3.3V output eliminates the need for external feedback resistors. Consider the TO-263-5 package for thermal management in space-constrained PCB layouts requiring surface-mount assembly.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2587 series of monolithic integrated circuits designed for flyback, boost, and forward converter applications. The series includes variants with different fixed output voltages and adjustable options, all sharing the same core architecture and SIMPLE SWITCHER ease-of-use philosophy.