{"product_id":"stmicroelectronics-l4971d-1-5a-3-3v-to-50v-step-down-switching-regulator-schaltspannungsregler","title":"Regulador comutado redutor STMicroelectronics L4971D 344pcs","description":"\u003cp\u003eSTMicroelectronics L4971D — Regulador de comutação redutor de 1,5 A, entrada de 8–55 V, saída ajustável de 3,3–50 V, até 300 kHz, SO16W, SMD — tubo com 344 peças. Um conversor buck monolítico de tecnologia BCD com um transistor de potência D-MOS interno (R\u003csub\u003eDS(on)\u003c\/sub\u003e DS(on) típico de 0,25 Ω) fornecendo até 1,5 A com uma eficiência de até 93%. Inclui avanço da tensão, limitação de corrente pulso a pulso, proteção contra curto-circuito em modo hiccup, arranque suave e desligamento térmico — adequado para uma vasta gama de aplicações industriais e de consumo de conversão CC-CC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisponível em stock\u003c\/strong\u003e — expedido no prazo de 3 dias após o pagamento.\u003c\/p\u003e\n\u003ch3\u003eVisão geral do produto\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; font-size:12px;\"\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px; width:40%;\"\u003e\u003cstrong\u003eNúmero de peça\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eL4971D\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eFabricante\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eSTMicroelectronics\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eTipo de dispositivo\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eRegulador de comutação redutor (buck)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eGama de tensão de entrada\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e8 V a 55 V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eGama de tensão de saída\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eAjustável de 3,3 V a 50 V (através de divisor resistivo externo)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eTensão de referência interna\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e3,3 V ± 1%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eCorrente de saída\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eAté 1,5 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eLimite de corrente\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e2–3 A (limitação pulso a pulso e modo hiccup)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eFrequência de comutação\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eAjustável até 300 kHz (100 kHz típicos)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eEficiência (típica)\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eAté 93% (V\u003csub\u003eO\u003c\/sub\u003e = 12 V, I\u003csub\u003eO\u003c\/sub\u003e = 1,5 A, f\u003csub\u003eSW\u003c\/sub\u003e = 100 kHz)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eTensão de dropout\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e0,44 V típico (V\u003csub\u003eCC\u003c\/sub\u003e = 10 V, I\u003csub\u003eO\u003c\/sub\u003e = 1,5 A)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eCorrente de repouso\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e4–6 mA em funcionamento; 100–200 µA em standby (inibição ativa)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eFuncionalidades de proteção\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eDesligamento térmico, arranque suave, inibição, proteção contra desligamento do feedback, avanço da tensão\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eTemperatura de funcionamento\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e0 °C a +125 °C (junção); −40 °C a +150 °C (armazenamento)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eResistência térmica\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e110 °C\/W de resistência térmica entre a junção e o ambiente (SO16W, montado na placa)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eEncapsulamento\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eSO16W (corpo largo, 16 terminais)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eMontagem\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eSMD (montagem à superfície)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eQuantidade por tubo\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e344 peças\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003e\u003cstrong\u003eEstado\u003c\/strong\u003e\u003c\/td\u003e\n \u003ctd style=\"padding:6px 8px;\"\u003eNovo — tubo original selado (OVP)\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAplicações\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eConversão de potência CC-CC industrial a partir de tensões de barramento de 8–55 V\u003c\/li\u003e\n \u003cli\u003eRegulação no ponto de carga em sistemas embebidos e placas de controlo\u003c\/li\u003e\n \u003cli\u003eEletrónica automóvel e de transportes que requer uma ampla gama de tensão de entrada\u003c\/li\u003e\n \u003cli\u003eControladores lógicos programáveis, acionamentos de motores e fontes de alimentação para instrumentação\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eExpedição\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eExpedição no prazo de 3 dias após o pagamento\u003c\/li\u003e\n \u003cli\u003eEmbalagem segura para uma entrega segura do tubo\u003c\/li\u003e\n \u003cli\u003eEntrega gratuita na Alemanha\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGarantia e conformidade\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eGarantia de 12 meses incluída\u003c\/li\u003e\n \u003cli\u003eO produto cumpre integralmente as normas da indústria da UE\u003c\/li\u003e\n \u003cli\u003eFatura com IVA incluída em todas as encomendas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e(GPSR (UE) 2023\/988): Contacte-nos para obter os dados de contacto de segurança do produto do fabricante\/entidade responsável na UE.\u003c\/p\u003e","brand":"STMICROELECTRONICS","offers":[{"title":"Default Title","offer_id":50570033103112,"sku":"TMA-103539","price":766.38,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/7566\/1973\/files\/00_SMD-FullTubes-Main_793fa234-7163-4ed3-af94-9f0e0bd44f12.png?v=1717903260","url":"https:\/\/liquistoaxcess.com\/pt\/products\/stmicroelectronics-l4971d-1-5a-3-3v-to-50v-step-down-switching-regulator-schaltspannungsregler","provider":"LiquistoAxcess","version":"1.0","type":"link"}