{"id":11725,"date":"2026-07-26T14:04:47","date_gmt":"2026-07-26T14:04:47","guid":{"rendered":"https:\/\/ic-vendor.com\/r1173s001b-e2-f\/"},"modified":"2026-07-26T14:04:47","modified_gmt":"2026-07-26T14:04:47","slug":"r1173s001b-e2-f","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/r1173s001b-e2-f\/","title":{"rendered":"R1173S001B-E2-F"},"content":{"rendered":"<h2>Productos<\/h2>\n<p>The R1173S001B-E2-F from Ricoh is a 1.0V fixed 300 mA ultra-low-noise LDO regulator with only 8 \u00b5VRMS output noise and 80 dB PSRR. The 1.6&#215;1.6mm DFN-4 package targets noise-critical RF and PLL power rails in smartphones and wireless modules.<\/p>\n<h2>Especificaciones<\/h2>\n<table>\n<tr>\n<td>Funci\u00f3n<\/td>\n<td>1.0V fixed, 300mA ultra-low-noise LDO<\/td>\n<\/tr>\n<tr>\n<td>Output Voltage<\/td>\n<td>1.0V fixed<\/td>\n<\/tr>\n<tr>\n<td>Corriente de salida<\/td>\n<td>300 mA<\/td>\n<\/tr>\n<tr>\n<td>Dropout Voltage<\/td>\n<td>180 mV at 300 mA<\/td>\n<\/tr>\n<tr>\n<td>Output Noise<\/td>\n<td>8 \u00b5VRMS<\/td>\n<\/tr>\n<tr>\n<td>PSRR<\/td>\n<td>80 dB at 1 kHz<\/td>\n<\/tr>\n<tr>\n<td>Paquete<\/td>\n<td>DFN-4 (1.6&#215;1.6mm)<\/td>\n<\/tr>\n<\/table>\n<h2>Principio de funcionamiento<\/h2>\n<p>A noise-filtered bandgap reference drives the error amplifier and PMOS pass element. External NR capacitor on the BYPASS pin filters reference noise to achieve 8 \u00b5VRMS. The ultra-small DFN-4 package minimizes parasitic inductance for high-frequency PSRR performance. 180 mV dropout at 300 mA allows operation from a 1.2V input.<\/p>\n<h2>Aplicaciones<\/h2>\n<ul>\n<li>RF transceiver LNA\/PA supply<\/li>\n<li>PLL \/ VCO power<\/li>\n<li>Smartphone RF rail<\/li>\n<li>Wi-Fi \/ BT module power<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The R1173S001B-E2-F from Ricoh is a 1.0V fixed 300 mA ultra-low-noise LDO regulator with only 8 \u00b5VRMS output noise and 80 dB PSRR. The 1.6&#215;1.6mm DFN-4 package targets noise-critical RF and PLL power rails in smartphones and wireless modules. Key Specifications Function 1.0V fixed, 300mA ultra-low-noise LDO Output Voltage 1.0V fixed Output Current [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13],"tags":[3006],"chip_brand":[3005],"class_list":["post-11725","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","tag-r1173s001b-e2-f","chip_brand-ricoh"],"acf":{"brief_explanation":"1.0V 300mA LDO, 8\u00b5VRMS noise, DFN-4","date_code":"","package_case":"DFN-4","in_stock":7246,"datasheet":"https:\/\/www.e-devices.ricoh.co.jp\/en\/products\/pmic\/","price":"","product_introduction":"The R1173S001B-E2-F from Ricoh is a 1.0V fixed 300 mA ultra-low-noise LDO regulator with only 8 \u00b5VRMS output noise and 80 dB PSRR. The 1.6x1.6mm DFN-4 package targets noise-critical RF and PLL power rails in smartphones and wireless modules.","working_principle":"A noise-filtered bandgap reference drives the error amplifier and PMOS pass element. External NR capacitor on the BYPASS pin filters reference noise to achieve 8 \u00b5VRMS. The ultra-small DFN-4 package minimizes parasitic inductance for high-frequency PSRR performance. 180 mV dropout at 300 mA allows operation from a 1.2V input.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Description<\/th><\/tr><tr><td>1<\/td><td>VIN<\/td><td>Input<\/td><\/tr><tr><td>2<\/td><td>GND<\/td><td>Ground<\/td><\/tr><tr><td>3<\/td><td>VOUT<\/td><td>1.0V output<\/td><\/tr><tr><td>4<\/td><td>BYPASS<\/td><td>Noise reduction<\/td><\/tr><\/table>","application_scenarios":"<ul><li>RF transceiver LNA\/PA supply<\/li><li>PLL \/ VCO power<\/li><li>Smartphone RF rail<\/li><li>Wi-Fi \/ BT module power<\/li><\/ul>","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>Key Difference<\/th><\/tr><tr><td>TPS7A10<\/td><td>TI<\/td><td>Similar ultra-low-noise<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/11725","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=11725"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/11725\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=11725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=11725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=11725"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=11725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}