LP873344RHDTQ1

$4.36

Description：AUTOMOTIVE DUAL 3-A BUCK CONVERT
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:54dfbe54cd7c Category: Voltage Regulators - Linear + Switching Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：AUTOMOTIVE DUAL 3-A BUCK CONVERT
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Topology：Step-Down (Buck) (2), Linear (LDO) (2)
Number of Outputs：4
Frequency - Switching：2MHz
Voltage/Current - Output 1：0.7V ~ 3.36V, 3A
Voltage/Current - Output 2：0.7V ~ 3.36V, 3A
Voltage/Current - Output 3：0.8V ~ 3.3V, 300mA
w/LED Driver：No
w/Supervisor：No
w/Sequencer：Yes
Voltage - Supply：2.8V ~ 5.5V
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount, Wettable Flank
Package / Case：28-VFQFN Exposed Pad
Supplier Device Package：28-VQFN (5x5)
Grade：Automotive
Qualification：AEC-Q100

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LP873344RHDTQ1

Overview

The LP873344RHDTQ1 is an automotive-grade PMIC featuring two 3-A buck converters and two LDOs. It operates with an input voltage range of 2.8 V to 5.5 V. Buck outputs provide up to 3.36 V, while LDOs offer fixed or adjustable regulation. The device supports I2C control, remote sensing, and AEC-Q100 qualification for -40°C to +125°C operation in a 28-pin VQFN package.

Feature Summary

Dual high-current buck converters with integrated linear regulators
I2C serial interface for programmable control and monitoring
Remote voltage sensing capability for improved load accuracy
Automotive reliability qualification for harsh environments

Applications

Automotive camera systems
Automotive radar modules
In-vehicle infotainment processors
ADAS controller power distribution

Procurement Notes

Verify the specific suffix RHDTQ1 against the official Texas Instruments datasheet to confirm pinout, thermal pad configuration, and moisture sensitivity level. Ensure the ordering part number matches the required output voltage options and packaging type. Cross-reference the AEC-Q100 grade and operating temperature range with your system requirements before finalizing procurement.

Selection Notes

Select this component when dual high-current buck conversion is required alongside low-noise LDOs in automotive applications. Consider its I2C controllability and remote sensing features for precise voltage regulation. Evaluate the 28-VQFN footprint against PCB space constraints. Verify that the 5.5 V maximum input voltage aligns with the vehicle's electrical architecture.

Part Context

This device belongs to the LP8733xx-Q1 family of multi-channel PMICs designed for automotive use. It integrates switching regulators and linear regulators into a single compact solution. The series targets complex electronic control units requiring multiple stable voltage rails from a single input source.

Replacement Considerations

Check the LP873344RHDRQ1 for non-automotive grade alternatives. Review LP87332A-Q1 if fewer channels are sufficient. Confirm pin compatibility and thermal performance before substituting.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.