# LM5146RGYR (Component)
## Description
Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-VQFN (3.5x4.5)
#LM5146RGYR #TexasInstruments #IntegratedCircuit #PowerManagementIC #PMIC #DCDCController #BuckController #StepDownController #SwitchingController #SynchronousBuck #PowerElectronics #VoltageRegulator #VQFN20 #SurfaceMount #CategoryIntegratedCircuits #CategoryPowerManagement #CategoryDCDCSwitchingControllers #CommonPartsLibrary
## Component Details
- **Owner:** silicon-yard
- **Created:** 6/30/2026
- **Last Updated:** 6/30/2026
- **Visibility:** Public
- **Manufacturer Name:** Texas Instruments
- **Symbol Style:** parametric-v1
- **Part Type:** Integrated Circuits
- **Manufacturer Part Number:** LM5146RGYR
- **Package or Case Code:** 20-VQFN
- **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/6ac49a59dc3328d1dc6e36f010929f9cce267ac2cb6078ee88c4d819dc804486.pdf
- **Used in:** 1 project
## 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/lm5146rgyr/texas-instruments.html?utm_currency=USD®ion=nac) | N/A | N/A |
| [HQonline](https://www.hqonline.com/product-detail/dc-dc-power-supply-chips-ti-lm5146rgyr-1021239869) | N/A | N/A |
| [Mouser](https://www.mouser.com/en/ProductDetail/Texas-Instruments/LM5146RGYR?qs=QNEnbhJQKvb1sM4DnKk1TA%3D%3D) | $4.36 | 2.1K |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** LM5146RGYR
- **Package / Case Code:** 20-VQFN
- **Pin Count:** 21
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 20 | VIN | |
| 17 | BST | |
| 14 | VCC | |
| 19 | SW | |
| 7 | SYNCOUT | |
| 8 | SYNCIN | |
| 2 | RT | |
| 9 | NC_1 | |
| 16 | NC_2 | |
| 4 | COMP | |
| 5 | FB | |
| 11 | ILIM | |
| 1 | EN/UVLO | |
| 3 | SS/TRK | |
| 10 | PGOOD | |
| 13 | LO | |
| 18 | HO | |
| 21 | EP_2 | |
| 15 | EP_1 | |
| 6 | AGND | |
| 12 | PGND | |
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*Generated from [https://www.flux.ai/silicon-yard/lm5146rgyr](https://www.flux.ai/silicon-yard/lm5146rgyr)*