LM3477MMX

$1.41

Description：IC REG CTRLR BUCK/BCK-BST 8VSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Bulk

SKU:87ffeb34f353 Category: DC DC Switching Controllers Brand: Texas Instruments

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Product introduction

LM3477MMX is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG CTRLR BUCK/BCK-BST 8VSSOP. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LM3477MMX

Description：IC REG CTRLR BUCK/BCK-BST 8VSSOP
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Bulk
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck, Buck-Boost
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：2.97V ~ 35V
Frequency - Switching：500kHz
Duty Cycle (Max)：93%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Enable
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package：8-VSSOP
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for LM3477MMX

LM3477MMX

DC DC Switching Controllers Overview

The LM3477MMX is a high-efficiency, high-side N-channel synchronous buck controller from Texas Instruments. It operates with an input voltage range of 8V to 40V and delivers up to 6A output current. The device features a fixed switching frequency of 500kHz and supports a maximum duty cycle of 93%. It utilizes current mode control for fast transient response and includes integrated soft-start functionality.

DC DC Switching Controllers Feature Summary

High-side N-channel synchronous buck controller architecture
Current mode control for improved bandwidth and transient response
Integrated soft-start limits inrush current during startup
Fixed 500kHz switching frequency reduces external component size

DC DC Switching Controllers Applications

Point-of-load DC/DC conversion modules
Industrial power supply systems
Telecommunications equipment power distribution

DC DC Switching Controllers Procurement Notes

Verify the package designation matches VSSOP-8 requirements for the specific MMX suffix configuration. Confirm RoHS compliance status and manufacturing date codes against project specifications. Ensure ESD handling protocols are followed during assembly due to the sensitive gate drive circuitry inherent in synchronous controllers.

DC DC Switching Controllers Selection Notes

Select this component when designing non-isolated step-down converters requiring high efficiency at moderate currents. The fixed 500kHz frequency offers a balance between size and efficiency. Consider thermal management solutions given the 6A capability and ensure input voltage stays within the 8V to 40V operational window for reliable performance.

DC DC Switching Controllers Part Context

This part belongs to the LM3477 series of synchronous buck controllers designed for high-performance applications. It complements other Texas Instruments PMICs by providing a robust solution for mid-power DC/DC conversion tasks where space constraints and efficiency are critical design parameters.