# TPS54KB21RZRR (Component)
## Description
Buck Switching Regulator IC Positive Adjustable 0.5V 1 Output 25A 16-PowerWFQFN #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Voltage-Regulator #Switching-regulator #TPS54
## Component Details
- **Owner:** adrian95
- **Created:** 8/9/2024
- **Last Updated:** 8/9/2024
- **Visibility:** Public
- **Manufacturer Name:** Texas Instruments
- **Part Type:** Integrated Circuit
- **Manufacturer Part Number:** TPS54KB21RZRR
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Datasheet URL:** https://www.ti.com/lit/ds/symlink/tps54kb20.pdf
- **Used in:** 3 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/tps54kb21rzrr/texas-instruments.html?utm_currency=USD®ion=nac) | N/A | N/A |
| [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/TPS54KB21RZRR/22539631) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C32186783.html) | $5.2844 | 8 |
| [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/TPS54KB21RZRR?qs=ZcfC38r4Posypq55kthShw%3D%3D) | $4.61 | 2.6K |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** TPS54KB21RZRR
- **Pin Count:** 16
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | EN | |
| 2 | AGND | |
| 3 | VIN | |
| 4 | PGND | |
| 5 | BOOT | |
| 6 | SW | |
| 7 | VCC | |
| 8 | PGND | |
| 9 | VIN | |
| 10 | PG | |
| 11 | MSEL | |
| 12 | ILIM | |
| 13 | GOSNS | |
| 14 | FB | |
| 15 | SS | |
| 16 | PGND | |
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*Generated from [https://www.flux.ai/adrian95/tps54kb21rzrr~lc6](https://www.flux.ai/adrian95/tps54kb21rzrr~lc6)*