# LMR38020FSQDDARQ1 (Component)

## Description

Automotive 80 V, 2 A Synchronous Buck Converter IC – Automotive\-grade synchronous step\-down \(buck\) DC\-DC converter optimized for automotive power supplies, industrial automation, battery\-powered systems, distributed power, and embedded applications\. Operates from a 4\.2 V to 80 V input voltage and provides an adjustable output voltage from 1 V to 75 V with up to 2 A continuous output current\. Features an integrated high\-side and low\-side MOSFET, 200 kHz to 2\.2 MHz programmable switching frequency, 40 µA typical quiescent current, 98% maximum duty cycle, forced PWM/light\-load efficiency modes, spread\-spectrum EMI reduction, frequency synchronization, power\-good output, fixed soft\-start, and pre\-biased startup\. Includes comprehensive protection with cycle\-by\-cycle current limiting, hiccup\-mode short\-circuit protection, thermal shutdown, and undervoltage lockout \(UVLO\)\. Qualified to AEC\-Q100 Grade 1, it operates over a −40°C to \+125°C ambient \(−40°C to \+150°C junction\) temperature range and is housed in an 8\-pin SO PowerPAD \(HSOIC\) package\.

\#TexasInstruments \#LMR38020FSQDDARQ1 \#LMR38020Q1 \#BuckConverter \#SynchronousBuck \#DCDCConverter \#PowerManagement \#AutomotiveElectronics \#AECQ100 \#SIMPLESWITCHER \#HSOIC8 \#EmbeddedSystems

## Component Details

- **Owner:** silicon\-yard
- **Created:** 7/27/2026
- **Last Updated:** 9/22/2026
- **Visibility:** Public
- **Symbol Style:** parametric\-v1
- **Manufacturer Name:** Texas Instruments
- **Package or Case Code:** 8\-pin HSOIC PowerPAD
- **Manufacturer Part Number:** LMR38020FSQDDARQ1
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/68a2653a3713f49047d81a75773dc7c282a23d831da748708c5f23b3496f828e\.pdf
- **Part Type:** Linear Regulator
- **Used in:** 114 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/lmr38020fsqddarq1/texas-instruments.html?utm_currency=USD&region=nac) | N/A | N/A |
| [Digi\-Key](https://www.digikey.com/en/products/detail/texas-instruments/LMR38020FSQDDARQ1/20415442) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C20345530.html) | $4\.4209 | 80 |
| [Mouser](https://www.mouser.com/en/ProductDetail/Texas-Instruments/LMR38020FSQDDARQ1?qs=ulEaXIWI0c9yq0Uk8ysL6g%253D%253D) | $4\.56 | 2\.2K |

- **Part Type:** Other
- **Manufacturer:** Texas Instruments
- **MPN:** LMR38020FSQDDARQ1
- **Package / Case Code:** 8\-SO
- **Pin Count:** 9
- **Compliance:** AEC\-Q100
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | GND |  |
| 2 | EN |  |
| 3 | VIN |  |
| 4 | RT/SYNC |  |
| 5 | FB |  |
| 6 | PG |  |
| 7 | BOOT |  |
| 8 | SW |  |
| 9 | EP |  |

---

*Generated from [https://flux\.ai/silicon\-yard/lmr38020fsqddarq1](https://flux.ai/silicon-yard/lmr38020fsqddarq1)*