# LMR50410Y5FQDBVRQ1 (Component) ## Description Buck Switching Regulator IC Positive Fixed 5V 1 Output 1A SOT-23-6 The LMR50410Y5FQDBVRQ1 (part of the LMR50410-Q1 family from Texas Instruments) is a synchronous step-down (buck) DC-DC converter designed for automotive and industrial power applications. It operates over a wide input voltage range of 4 V to 36 V and can deliver up to 1 A output current, making it suitable for converting higher, unregulated voltages into stable lower voltages (e.g., 5 V or 3.3 V rails). The device integrates power switches, control circuitry, and compensation internally, allowing simple design with minimal external components and a compact PCB footprint. Key Features Power & Performance Wide input voltage range: 4 V to 36 V Output current: up to 1 A High switching frequency: 2.1 MHz (enables small inductors) High efficiency with PFM (light load) and FPWM (constant frequency) options Integration & Ease of Use Synchronous rectification (integrated high-side & low-side MOSFETs) Internal compensation (no complex external tuning) Minimal external components required Small SOT-23-6 package for compact designs Protection & Reliability Cycle-by-cycle current limit Short-circuit protection (hiccup mode) Thermal shutdown protection Undervoltage lockout (UVLO) ±1% reference voltage accuracy Automotive & Industrial Capability AEC-Q100 qualified (automotive grade) Operating temperature: Ambient: up to 125°C Junction: up to 150°C Designed for rugged automotive environments Additional Features Soft-start for controlled startup Precision enable pin for system control Monotonic startup with pre-biased output Available in fixed output (e.g., 5 V) variants Typical Applications Automotive electronics (ADAS, infotainment, lighting) Industrial power supplies Distributed power systems General-purpose DC-DC regulation #commonpartslibrary #integratedcircuit #powermanagement #voltageregulator ## Component Details - **Owner:** adrian95 - **Created:** 11/30/2023 - **Last Updated:** 4/27/2026 - **Visibility:** Public - **Part Type:** Integrated Circuit - **Symbol Style:** parametric-v1 - **Manufacturer Name:** Texas Instruments - **License:** https://creativecommons.org/licenses/by/4.0/ - **Manufacturer Part Number:** LMR50410Y5FQDBVRQ1 - **Datasheet URL:** https://www.ti.com/lit/ds/symlink/lmr50410-q1.pdf - **Used in:** 374 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/lmr50410y5fqdbvrq1/texas-instruments?region=asia) | N/A | N/A | | [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/LMR50410Y5FQDBVRQ1/13563002) | N/A | N/A | | [LCSC](https://www.lcsc.com/product-detail/C2871822.html) | $1.8174 | 1.7K | | [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/LMR50410Y5FQDBVRQ1?qs=81r%252BiQLm7BR57cLsTbTr9w%3D%3D) | $1.76 | 4.5K | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Texas Instruments - **MPN:** LMR50410Y5FQDBVRQ1 - **Mount Type:** PCB - **Package / Case Code:** SOT-23-5 - **Pin Count:** 6 - **Logic Function:** AND - **Compliance:** AEC-Q100 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | CB | | | 2 | GND | | | 3 | FB | | | 4 | EN | | | 5 | VIN | | | 6 | SW | | --- *Generated from [https://www.flux.ai/adrian95/lmr50410y5fqdbvrq1~tdn](https://www.flux.ai/adrian95/lmr50410y5fqdbvrq1~tdn)*