LM5143RHAR

$3.51

Description：3.5-V TO 65-V LOW-IQ, DUAL OUTPU
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:7d87a61c474e Category: DC DC Switching Controllers 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

LM5143RHAR is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is 3.5-V TO 65-V LOW-IQ, DUAL OUTPU. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LM5143RHAR

Description：3.5-V TO 65-V LOW-IQ, DUAL OUTPU
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：2
Output Phases：2
Voltage - Supply (Vcc/Vdd)：3.5V ~ 65V
Frequency - Switching：100kHz ~ 2.2MHz
Duty Cycle (Max)：100%
Synchronous Rectifier：Yes
Clock Sync：Yes
Serial Interfaces：-
Control Features：Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount
Package / Case：40-VFQFN Exposed Pad
Supplier Device Package：40-VQFN (6x6)
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for LM5143RHAR

LM5143RHAR

DC DC Switching Controllers Overview

The LM5143RHAR is a dual-output stackable synchronous buck switching controller manufactured by Texas Instruments. It operates within an input voltage range of 3.5 V to 65 V and supports a switching frequency up to 2.2 MHz. The device utilizes a VQFNP-40 surface-mount package and functions as a DC/DC controller with a shutdown feature. It is rated for operation between -40°C and +125°C, drawing a typical operating supply current of 3.5 µA.

DC DC Switching Controllers Feature Summary

Supports dual-output configurations with stackable architecture for multi-phase or independent rail generation
Integrates high-side and low-side gate drivers for direct control of external N-channel MOSFETs
Features programmable switching frequency and adaptive dead-time control to optimize efficiency

DC DC Switching Controllers Applications

Industrial power supplies
Telecommunications equipment
Point-of-load (POL) conversion modules

DC DC Switching Controllers Procurement Notes

Verify the specific suffix RHAR against the manufacturer datasheet to confirm the tape-and-reel packaging configuration and temperature grade. Ensure compatibility with the intended PCB footprint for the VQFNP-40 package. Confirm that the application requirements align with the 65 V maximum input voltage limit and the specified thermal performance envelope.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring dual isolated or non-isolated outputs from a single controller stage. It is suitable for applications demanding high input voltages up to 65 V. Consider the VQFNP-40 package constraints for thermal dissipation and layout complexity compared to larger packages.

DC DC Switching Controllers Part Context

This part belongs to the LM5143 family of wide-input voltage synchronous buck controllers. It shares architectural similarities with automotive-grade variants like the LM5143QRWGRQ1 but lacks AEC-Q100 qualification. The RHAR suffix specifically denotes the commercial grade and reel packaging format.