# LM5143RHAR (Component)
## Description
Buck Regulator Positive Output Step-Down DC-DC Controller IC 40-VQFN (6x6) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #DCDC-Switching controller #LM5143
## Component Details
- **Owner:** adrian95
- **Created:** 9/3/2025
- **Last Updated:** 9/3/2025
- **Visibility:** Public
- **Datasheet URL:** https://www.mouser.in/ProductDetail/Texas-Instruments/LM5143RHAR?qs=Znm5pLBrcALnKKCAKA%252Bg0Q%3D%3D
- **Part Type:** Integrated Circuit
- **Manufacturer Part Number:** LM5143RHAR
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Package or Case Code:** QFN50P600X600X100-41N-D
- **Manufacturer Name:** Texas Instruments
- **Used in:** 2 projects
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/lm5143rhar/texas-instruments.html?utm_currency=USD®ion=nac) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C5219297.html) | $4.9957 | 5 |
| [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/LM5143RHAR?qs=Znm5pLBrcALnKKCAKA%252Bg0Q%3D%3D) | $4.68 | 6.7K |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** LM5143RHAR
- **Package / Case Code:** VQFN
- **Pin Count:** 41
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | SS2 | |
| 2 | COMP2 | |
| 3 | FB2 | |
| 4 | CS2 | |
| 5 | VOUT2 | |
| 6 | VCCX | |
| 7 | PG2 | |
| 8 | HOL2 | |
| 9 | HO2 | |
| 10 | SW2 | |
| 11 | HB2 | |
| 12 | LOL2 | |
| 13 | LO2 | |
| 14 | PGND2 | |
| 15 | VCC_1 | |
| 16 | VCC_2 | |
| 17 | PGND1 | |
| 18 | LO1 | |
| 19 | LOL1 | |
| 20 | HB1 | |
| 21 | SW1 | |
| 22 | HO1 | |
| 23 | HOL1 | |
| 24 | PG1 | |
| 25 | VIN | |
| 26 | VOUT1 | |
| 27 | CS1 | |
| 28 | FB1 | |
| 29 | COMP1 | |
| 30 | SS1 | |
| 31 | EN1 | |
| 32 | RES | |
| 33 | DEMB | |
| 34 | MODE | |
| 35 | AGND | |
| 36 | VDDA | |
| 37 | RT | |
| 38 | DITH | |
| 39 | SYNCOUT | |
| 40 | EN2 | |
| 41 | GND | |
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*Generated from [https://www.flux.ai/adrian95/lm5143rhar~85v](https://www.flux.ai/adrian95/lm5143rhar~85v)*