LM2677S-5.0

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

SKU:f80622511a95 Category: Voltage Regulators - DC DC Switching Regulators Brand: Texas Instruments

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Product introduction

LM2677S-5.0 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 BUCK 5V 5A TO263. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2677S-5.0

Description：IC REG BUCK 5V 5A TO263
Series：SIMPLE SWITCHER®
Mfr：Texas Instruments
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：8V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Current - Output：5A
Frequency - Switching：260kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
Supplier Device Package：TO-263 (DDPAK-7)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2677S-5.0

LM2677S-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2677S-5.0/NOPB is a high-efficiency 5A step-down switching voltage regulator from Texas Instruments, operating at a fixed 260 kHz frequency. It delivers a regulated 5V output with an input voltage range of 8V to 40V. The device utilizes a TO-263-7 (PowerPAD) surface-mount package and supports operation temperatures from -40°C to +125°C. Key electrical parameters include a typical quiescent current of 4.2mA and a maximum duty cycle of 90%.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated power switch rated for 5A continuous load current
Fixed 260kHz switching frequency enables compact external component sizing
Internal frequency compensation simplifies design requirements
Thermal shutdown and current limit protection ensure operational reliability

Voltage Regulators - DC DC Switching Regulators Applications

Point-of-load regulation for embedded systems
Distributed power architectures requiring 5V rails
Battery-powered equipment efficiency optimization

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout compatibility and thermal pad configuration. Ensure the selected variant matches the required output voltage tolerance and packaging style for your PCB layout constraints.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required with up to 5A capacity. Consider the TO-263-7 package for its thermal performance in space-constrained designs compared to through-hole alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SIMPLE SWITCHER family, designed for high-efficiency DC/DC conversion. It serves as a robust solution for replacing linear regulators in applications where heat dissipation and efficiency are critical concerns.