# LMR33630BDDAR (Component) ## Description Buck Switching Regulator IC Positive Adjustable 1V 1 Output 3A 8-PowerSOIC (0.154", 3.90mm Width) LMR33630BDDAR – Synchronous step-down (buck) DC-DC converter delivering 1 A output with ultra-low quiescent current. Features adjustable output voltage with integrated MOSFETs, optimized for high-efficiency power conversion from a higher supply voltage to 3.3 V. Ideal for battery-powered and portable electronics, IoT devices, and microcontroller power supplies where low standby current extends battery life. Provides reliable voltage regulation with fast transient response in compact surface-mount packaging. #SynchronousBuck #DCDCConverter #LowIQ #3V3Output #1ARegulator #PowerManagement #EmbeddedElectronics #BatteryEfficient ## Component Details - **Owner:** lcsc - **Created:** 11/2/2024 - **Last Updated:** 6/6/2026 - **Visibility:** Public - **JLCPCB Part Class:** Extended Part - **Manufacturer Part Number:** LMR33630BDDAR - **Manufacturer Name:** TI(德州仪器) - **LCSC Part Number:** C544370 - **Part Type:** DC-DC Converters - **Package or Case Code:** SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP2.8-1 - **Datasheet URL:** https://www.ti.com/lit/ds/symlink/lmr33630.pdf - **Used in:** 77 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/lmr33630bddar/texas-instruments.html?utm_currency=USD&region=nac) | N/A | N/A | | [LCSC](https://www.lcsc.com/product-detail/C544370.html) | $0.7373 | 5K | | [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/LMR33630BDDAR?qs=r5DSvlrkXmLUww9VcarODg%3D%3D) | $2.87 | 63 | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Texas Instruments - **MPN:** LMR33630BDDAR - **Mount Type:** Surface Mount - **Package / Case Code:** 8-SOIC - **Pin Count:** 9 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | PGND | | | 2 | VIN | | | 3 | EN | | | 4 | PG | | | 5 | FB | | | 6 | VCC | | | 7 | BOOT | | | 8 | SW | | | 9 | EP | | --- *Generated from [https://www.flux.ai/lcsc/lmr33630bddar~o51d](https://www.flux.ai/lcsc/lmr33630bddar~o51d)*