{"id":42612,"date":"2020-10-23T07:31:44","date_gmt":"2020-10-23T07:31:44","guid":{"rendered":"https:\/\/\/convertisseur-dc-dc-buck-boost-avec-un-courant-de-repos-ultra-faible\/"},"modified":"2020-10-23T07:31:44","modified_gmt":"2020-10-23T07:31:44","slug":"convertisseur-dc-dc-buck-boost-avec-un-courant-de-repos-ultra-faible","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/convertisseur-dc-dc-buck-boost-avec-un-courant-de-repos-ultra-faible\/","title":{"rendered":"Convertisseur DC\/DC Buck-Boost avec un courant de repos ultra-faible"},"content":{"rendered":"<p>Le r\u00e9gulateur a commutation buck-boost ISL9122A int\u00e8gre un r\u00e9glage dynamique de la tension (DVS) par paliers de 25 mV programmables via I2C pour optimiser la consommation \u00e9lectrique du syst\u00e8me. L\u2019augmentation de puissance du r\u00e9gulateur jusqu\u2019\u00e0 5,375 V maximise les capacit\u00e9s RF des \u00e9quipements IdO sur toute la plage de la batterie. Son pilotage en PFM et PWM maximisent l&rsquo;efficacit\u00e9 sur toute la plage de courant de sortie. En mode PWM forc\u00e9, le r\u00e9gulateur commute toujours \u00e0 une fr\u00e9quence de 2,5 MHz, ce qui am\u00e9liore les performances EMI du syst\u00e8me. De plus, le mode ultrasonique de l\u2019ISL9122A sans commutation inf\u00e9rieure \u00e0 25 kHz supprime le bruit acoustique, \u00e9liminant ainsi tout bourdonnement audible.<\/p>\n<p>\u00ab Avec la croissance explosive des applications de connectivit\u00e9 sans fil IdO, les transitions rapides du r\u00e9gulateur buck-boost ISL9122A de la charge nulle \u00e0 la pleine charge sont id\u00e9ales pour alimenter la derni\u00e8re g\u00e9n\u00e9ration d\u2019appareils \u00bb,&nbsp;a d\u00e9clar\u00e9 Andrew Cowell, vice-pr\u00e9sident, Division March\u00e9s Mobilit\u00e9, infrastructure et puissance des IdO \u00e0 Renesas. \u00ab Nos clients louent la flexibilit\u00e9 de l&rsquo;ISL9122A, le r\u00e9glage dynamique de la tension et la plus faible consommation d&rsquo;\u00e9nergie r\u00e9gul\u00e9e en mode veille. \u00bb<\/p>\n<p>Le r\u00e9gulateur buck-boost ISL9122A rejoint le&nbsp;<a href=\"https:\/\/www.renesas.com\/products\/power-management\/switching-regulators\/integrated-fet-regulators\/device\/ISL9123.html?utm_campaign=power_iot_isl9122&amp;utm_source=press_release&amp;utm_medium=press_release&amp;utm_content=isl9123%20\\t%20_blank\">r\u00e9gulateur buck ISL9123<\/a>&nbsp;r\u00e9cemment lanc\u00e9. Les deux r\u00e9gulateurs \u00e0 commutation \u00e0 IQ ultra-bas peuvent alimenter la&nbsp;<a href=\"https:\/\/www.renesas.com\/products\/microcontrollers-microprocessors\/rl78.html?utm_campaign=power_iot_isl9122&amp;utm_source=press_release&amp;utm_medium=press_release&amp;utm_content=rl78_lp%20\\t%20_blank\">famille RL78<\/a>&nbsp;Renesas de microcontr\u00f4leurs 8\/16 bits \u00e0 tr\u00e8s faible consommation d&rsquo;\u00e9nergie, la&nbsp;<a href=\"https:\/\/www.renesas.com\/products\/microcontrollers-microprocessors\/ra.html?utm_campaign=power_iot_isl9122&amp;utm_source=press_release&amp;utm_medium=press_release&amp;utm_content=ra_lp%20\\t%20_blank\">famille RA<\/a>&nbsp;de microcontr\u00f4leurs 32 bits avec Arm Cortex-M Core et la&nbsp;<a href=\"https:\/\/www.renesas.com\/products\/microcontrollers-microprocessors\/re.html?utm_campaign=power_iot_isl9122&amp;utm_source=press_release&amp;utm_medium=press_release&amp;utm_content=re_lp%20\\t%20_blank\">famille RE<\/a>&nbsp;de contr\u00f4leurs int\u00e9gr\u00e9s pour les appareils portables et les applications de r\u00e9cup\u00e9ration d&rsquo;\u00e9nergie.<\/p>\n<p><a href=\"https:\/\/www.renesas.com\/products\/power-management\/switching-regulators\/integrated-fet-regulators\/device\/ISL9122A.html?utm_campaign=power_iot_isl9122&amp;utm_source=press_release&amp;utm_medium=press_release&amp;utm_content=isl9122a%20\\t%20_blank\">www.renesas.com\/products\/ISL9122A<\/a><\/p>\n<h3 class=\"title\"><a href=\"https:\/\/www.electronique-eci.com\/news\/recepteur-de-puissance-sans-fil-dote-du-mode-wattshare\">R\u00e9cepteur de puissance sans fil dot\u00e9 du mode WattShare<\/a><\/h3>\n<h3 class=\"title\"><a href=\"https:\/\/www.electronique-eci.com\/news\/memoire-tampon-ddr5-pour-les-serveurs-et-les-services-cloud\">M\u00e9moire tampon DDR5 pour les serveurs et les services Cloud <\/a><\/h3>\n<h3 class=\"title\"><a href=\"https:\/\/www.electronique-eci.com\/news\/solution-cle-en-main-de-mobilite-48v-materielle-et-logicielle\">Solution cl\u00e9 en main de mobilit\u00e9 48V, mat\u00e9rielle et logicielle <\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"<p>Fonctionnant avec une sortie batterie de 1,8 V \u00e0 5,5 V, l&rsquo;ISL9122A propos\u00e9 par Renesas Electronics Corporation prolonge la dur\u00e9e de vie de la batterie des appareils intelligents Internet des objets (IdO) aliment\u00e9s par pile bouton, lithium ou d\u2019autres types de piles alcalines. Les applications cibles comprennent les \u00e9couteurs sans fil, les bracelets de fitness, les montres intelligentes, les compteurs d&rsquo;eau et de gaz, les appareils m\u00e9dicaux portables et une large gamme d&rsquo;appareils IdO intelligents \u00e0 piles.<\/p>\n","protected":false},"author":9,"featured_media":42613,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-42612","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Convertisseur DC\/DC Buck-Boost avec un courant de repos ultra-f...<\/title>\n<meta name=\"description\" content=\"Fonctionnant avec une sortie batterie de 1,8 V \u00e0 5,5 V, l&#039;ISL9122A propos\u00e9 par Renesas Electronics Corporation prolonge la dur\u00e9e de vie de la batterie des...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/42612\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Convertisseur DC\/DC Buck-Boost avec un courant de repos ultra-faible\" \/>\n<meta property=\"og:description\" content=\"Fonctionnant avec une sortie batterie de 1,8 V \u00e0 5,5 V, l&#039;ISL9122A propos\u00e9 par Renesas Electronics Corporation prolonge la dur\u00e9e de vie de la batterie des appareils intelligents Internet des objets (IdO) aliment\u00e9s par pile bouton, lithium ou d\u2019autres types de piles alcalines. Les applications cibles comprennent les \u00e9couteurs sans fil, les bracelets de fitness, les montres intelligentes, les compteurs d&#039;eau et de gaz, les appareils m\u00e9dicaux portables et une large gamme d&#039;appareils IdO intelligents \u00e0 piles.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/42612\/\" \/>\n<meta property=\"og:site_name\" content=\"EENewsEurope\" \/>\n<meta property=\"article:published_time\" content=\"2020-10-23T07:31:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci8865_renesas.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Alain Dieul\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta 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Les applications cibles comprennent les \u00e9couteurs sans fil, les bracelets de fitness, les montres intelligentes, les compteurs d'eau et de gaz, les appareils m\u00e9dicaux portables et une large gamme d'appareils IdO intelligents \u00e0 piles.","og_url":"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/42612\/","og_site_name":"EENewsEurope","article_published_time":"2020-10-23T07:31:44+00:00","og_image":[{"width":1920,"height":1080,"url":"https:\/\/www.ecinews.fr\/wp-content\/uploads\/import\/default\/files\/sites\/default\/files\/images\/eci8865_renesas.jpg","type":"image\/jpeg"}],"author":"Alain Dieul","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Alain Dieul","Est. reading time":"2 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