LMR604403SRAKR

$0.77

Description：SIMPLE SWITCHER 3.1-V TO 36-V, 4
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:1c8868af2153 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

LMR604403SRAKR is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is SIMPLE SWITCHER 3.1-V TO 36-V, 4. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LMR604403SRAKR

Description：SIMPLE SWITCHER 3.1-V TO 36-V, 4
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable (Fixed)
Number of Outputs：1
Voltage - Input (Min)：3V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：1V (3.3V)
Voltage - Output (Max)：20V
Current - Output：4A
Frequency - Switching：200kHz ~ 2.2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：9-PowerWQFN
Supplier Device Package：9-WQFN-HR (2.5x2)
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LMR604403SRAKR

LMR604403SRAKR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR604403SRAKR is a synchronous buck converter from Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It operates within an input voltage range of 3V to 36V and delivers a fixed 3.3V output at up to 4A. The device features a WQFN-HR-9 package and supports programmable switching frequencies between 200kHz and 2.2MHz. It includes a Power Good output for sequencing and offers low quiescent current of 5µA in active mode and 0.65µA in shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated synchronous rectification for high efficiency across load ranges
Programmable switching frequency allows optimization for size or performance
Power Good signal enables precise power supply sequencing control

Voltage Regulators - DC DC Switching Regulators Applications

Automotive infotainment systems
Industrial automation controllers
Building automation networks

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm pin compatibility and thermal characteristics. Ensure the component meets required automotive reliability standards for the target application environment. Cross-reference package dimensions with PCB footprint libraries before finalizing design integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 3.3V output is required without external feedback resistors. The 4A current rating suits moderate power loads where compact form factors are critical. Consider the wide input voltage range for direct battery connection scenarios in vehicle architectures.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR604xx-Q1 family of ultra-compact synchronous buck converters. It shares pinout compatibility with lower current variants like the LMR60420 and LMR60430, facilitating scalable designs. The HotRod QFN package minimizes board space while maintaining robust thermal performance.