{"id":5474,"date":"2014-10-02T20:00:58","date_gmt":"2014-10-02T13:00:58","guid":{"rendered":"http:\/\/rcl-radio.ru\/?p=5474"},"modified":"2022-04-23T16:09:00","modified_gmt":"2022-04-23T10:09:00","slug":"%d0%b8%d1%81%d0%bf%d0%be%d0%bb%d1%8c%d0%b7%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d0%b5-max1953-1mhz-pwm-%d0%bf%d0%be%d0%bd%d0%b8%d0%b6%d0%b0%d1%8e%d1%89%d0%b8%d0%b9-%d0%ba%d0%be%d0%bd%d1%82%d1%80%d0%be","status":"publish","type":"post","link":"http:\/\/rcl-radio.ru\/?p=5474","title":{"rendered":"\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 MAX1953 1MHz PWM &#8212; \u043f\u043e\u043d\u0438\u0436\u0430\u044e\u0449\u0438\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440"},"content":{"rendered":"<blockquote><p>Design of Graphic Chip and Related Circuitry Power Supplies Using MAX1953 1MHz PWM Step-down Controller<\/p><\/blockquote>\n<p>\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 MAX1953 1MHz PWM &#8212; \u043f\u043e\u043d\u0438\u0436\u0430\u044e\u0449\u0438\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440<\/p>\n<p>\u0410\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u044f: \u041c\u043e\u0449\u043d\u044b\u0435 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0447\u0438\u043f\u044b \u0448\u0438\u0440\u043e\u043a\u043e \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432 \u043f\u0435\u0440\u0441\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0430\u0445 \u0438 \u0438\u0433\u0440\u043e\u0432\u044b\u0445 \u043f\u0440\u0438\u0441\u0442\u0430\u0432\u043a\u0430\u0445. \u0422\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f \u043a \u043f\u0438\u0442\u0430\u043d\u0438\u044e \u0434\u043b\u044f \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430 \u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0441\u0445\u0435\u043c \u043a\u0440\u0430\u0439\u043d\u0435 \u0432\u0430\u0436\u043d\u044b \u0441 \u0442\u043e\u0447\u043a\u0438 \u0437\u0440\u0435\u043d\u0438\u044f \u0437\u0430\u0442\u0440\u0430\u0442 \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u0438. \u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u043c\u044b \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u043f\u0438\u0442\u0430\u043d\u0438\u044f \u0432\u0438\u0434\u0435\u043e\u043a\u0430\u0440\u0442\u044b \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c MAX1953 1MHz \u0448\u0438\u0440\u043e\u0442\u043d\u043e-\u0438\u043c\u043f\u0443\u043b\u044c\u0441\u043d\u044b\u0439 \u043c\u043e\u0434\u0443\u043b\u044f\u0442\u043e\u0440 (PWM) &#8212; \u043f\u043e\u043d\u0438\u0436\u0430\u044e\u0449\u0438\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440.<\/p>\n<div id=\"marketWidget\"><\/div>\n<p>\u041c\u043e\u0449\u043d\u044b\u0435 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0447\u0438\u043f\u044b \u0448\u0438\u0440\u043e\u043a\u043e \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432 \u043f\u0435\u0440\u0441\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0430\u0445 \u0438 \u0438\u0433\u0440\u043e\u0432\u044b\u0445 \u043f\u0440\u0438\u0441\u0442\u0430\u0432\u043a\u0430\u0445. \u041f\u0440\u0438 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u043f\u043e\u0442\u043e\u043a\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u0431\u043e\u043b\u044c\u0448\u0435 500-600 \u041c\u043f\u0438\u043a\u0441\u0435\u043b \/ \u0441, \u043f\u0440\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 20 \u043c\u0438\u043b\u043b\u0438\u043e\u043d\u043e\u0432 \/ \u0441, \u0441\u043e \u0441\u0442\u043e\u0440\u043e\u043d\u044b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0438\u0433\u0440, \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432, \u043f\u0430\u043c\u044f\u0442\u0438, \u0438 \u0434\u0430\u0436\u0435 RAMDACs \u0434\u0438\u0441\u043f\u043b\u0435\u0439\u043d\u044b\u0445 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439, \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u0441\u044f \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f \u043a \u043f\u0438\u0442\u0430\u043d\u0438\u044e \u0434\u043b\u044f \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u043e\u0432 \u0438 \u0432\u0441\u043f\u043e\u043c\u043e\u0433\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0441\u0445\u0435\u043c.<\/p>\n<p>* AGP \u043f\u043e \u0432\u0445\u043e\u0434\u043d\u043e\u043c\u0443 \u0441\u0438\u0433\u043d\u0430\u043b\u0443:<br \/>\n\u043e-3.3V @ 6A = 18.9W<br \/>\n\u043e &#8212; 5.0V @ 2A = 10.0W<br \/>\n\u043e &#8212; 12.0V @ 1A = 12.0W<br \/>\n* \u0422\u0438\u043f\u0438\u0447\u043d\u044b\u0435 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0438\u0442\u0430\u043d\u0438\u044f: Table 1.<br \/>\nVoltage Current Solution<br \/>\nGPU (Graphic Processing Unit) 1.2V or 1.5V 5A MAX1953<br \/>\nDDR Memory (VDDQ) 2.5V 3A MAX1953<\/p>\n<p>\u041d\u0438\u0436\u0435 \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u044b \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u043e\u043d\u0438\u0436\u0430\u044e\u0449\u0438\u0445 \u0440\u0435\u0448\u0435\u043d\u0438\u0439 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c MAX1953 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u043f\u0438\u0442\u0430\u043d\u0438\u044f<\/p>\n<p>* \u041d\u0438\u0437\u043a\u043e\u0435 \u0432\u0445\u043e\u0434\u043d\u043e\u0435 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0435 (3,3 \u0412 \u0438 5 \u0412)<br \/>\n* 1 \u041c\u0413\u0446 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u044f\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430, \u043d\u0438\u0437\u043a\u0430\u044f \u0441\u0442\u043e\u0438\u043c\u043e\u0441\u0442\u044c.<br \/>\n* \u041a\u041f\u0414&gt; 90%<\/p>\n<p>\u0420\u0438\u0441\u0443\u043d\u043e\u043a 1 \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 &#8212; \u043f\u043e\u043d\u0438\u0436\u0430\u044e\u0449\u0438\u0439 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0434\u043b\u044f GPU \u0438 \u043d\u0430 \u0440\u0438\u0441\u0443\u043d\u043a\u0435 2 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0434\u043b\u044f \u043f\u0430\u043c\u044f\u0442\u0438 DDR.<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/rcl-radio.ru\/wp-content\/uploads\/2014\/10\/DI145Fig01.gif\" class=\"highslide-image\" onclick=\"return hs.expand(this);\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5475\" src=\"http:\/\/rcl-radio.ru\/wp-content\/uploads\/2014\/10\/DI145Fig01.gif\" alt=\"DI145Fig01\" width=\"490\" height=\"280\" \/><\/a><\/p>\n<p>Figure 1. The MAX1953: 1MHz switching, 1.5V\/5A GPU supply, 3.3V In, 1.5V\/5A out.<br \/>\nFigure 1. The MAX1953: 1MHz switching, 1.5V\/5A GPU supply, 3.3V In, 1.5V\/5A out.<\/p>\n<p><span style=\"font-size: medium;\"><b>Table 2. Component List for 3.3V in, 1.5V\/5A Output at MHz.<\/b><\/span><\/p>\n<table border=\"0\" cellspacing=\"1\" cellpadding=\"2\">\n<tbody>\n<tr class=\"tablehead\">\n<td class=\"tablehead\"><span style=\"font-size: medium;\">Component ID<\/span><\/td>\n<td class=\"tablehead\"><span style=\"font-size: medium;\">Quantity<\/span><\/td>\n<td class=\"tablehead\"><span style=\"font-size: medium;\">Description<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">C1, 2, 3, 4<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">4<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Cap. 10\u00b5F\/6.3V Cer 0805 Taiyo Yuden:JMK212F106ZG<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">C5<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Cap. 180\u00b5F\/4V. Panasonic: EEFUE0G181R<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">C6 <\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Cap. 680pF\/10V Cer 0402 Kemet: C0402C681M8RAC<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">C7<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Cap. 39pF\/10V Cer 0402 Kemet: C0402C390K8GAC<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">D1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Diode, Schottky, 40V, 1A, SOT-23F, Central: CMPSH1-4<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">IC<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">IC, Synch. <span class=\"muted2\">Buck<\/span> controller: MAX1953<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">L1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Inductor, 0.68\u00b5H, 12A, 5m\u03a9. Coilcraft: DO3316P-681HC<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">R1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Resistor, 7.15K, 1%, 0603 case<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">R2<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Resistor, 8.06K, 1%, 0603 case<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">R3<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Resistor, 82K, 5%, 0603 case<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Q1\/2<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Transistor, Dual MOSFET, Fairchild: FDS6898A, 20V, 0.013\u03a9<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: medium;\">Note: For 1.2V output, change R1 to 4.12K, 1%, and R3 to 68K, 5%.<\/span><\/p>\n<p><b>Figure 2<\/b> <span style=\"font-size: medium;\">shows the plot of efficiency versus output current of the 1.5V, 5A circuit.<\/span><\/p>\n<p>&nbsp;<\/p>\n<div align=\"center\"><span style=\"font-size: medium;\"><a href=\"http:\/\/rcl-radio.ru\/wp-content\/uploads\/2014\/10\/DI145Fig02.gif\" class=\"highslide-image\" onclick=\"return hs.expand(this);\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5476\" src=\"http:\/\/rcl-radio.ru\/wp-content\/uploads\/2014\/10\/DI145Fig02.gif\" alt=\"DI145Fig02\" width=\"395\" height=\"218\" \/><\/a><br \/>\n<\/span><\/div>\n<div align=\"center\"><span style=\"font-size: medium;\"><i>Figure 2.<\/i><br \/>\n<\/span><\/div>\n<p style=\"text-align: center;\"><span style=\"font-size: medium;\">\u00a0<a href=\"http:\/\/rcl-radio.ru\/wp-content\/uploads\/2014\/10\/DI145Fig03.gif\" class=\"highslide-image\" onclick=\"return hs.expand(this);\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5477\" src=\"http:\/\/rcl-radio.ru\/wp-content\/uploads\/2014\/10\/DI145Fig03.gif\" alt=\"DI145Fig03\" width=\"478\" height=\"274\" \/><\/a><\/span><\/p>\n<div align=\"center\"><span style=\"font-size: medium;\"><i>Figure 3. The MAX1953: 1MHz switching, 2.5V\/3A memory VDDQ supply.<\/i><br \/>\n<\/span><\/div>\n<p><span style=\"font-size: medium;\"><br \/>\n<b>Table 3. Component List for 5V in, 2.5V\/3A Output at 1MHz.<\/b><\/span><\/p>\n<table border=\"0\" cellspacing=\"1\" cellpadding=\"2\">\n<tbody>\n<tr class=\"tablehead\">\n<td class=\"tablehead\"><span style=\"font-size: medium;\">Component ID<\/span><\/td>\n<td class=\"tablehead\"><span style=\"font-size: medium;\">Quantity<\/span><\/td>\n<td class=\"tablehead\"><span style=\"font-size: medium;\">Description<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">C1, 2, 3<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">3<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Cap. 10\u00b5F\/6.3V Cer 0805 Taiyo Yuden:JMK212F106ZG<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">C4, 5<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">2<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Cap. 10\u00b5F\/4V Cer 0805 Taiyo Yuden:AMK212BJ106MG<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">C6<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Cap. 560pF\/10V Cer 0402 Kemet: C0402C561M8RAC<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">D1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Diode, Schottky, 40V, 1A, SOT-23F, Central: CMPSH1-4<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">IC<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">IC, Synch. Buck controller: MAX1953<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">L1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Inductor, 1.5\u00b5H, 3.4A, 30m\u03a9: Toko# 817FY-1R5M<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">R1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Resistor, 17.4K, 1%, 0603 case<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">R2<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Resistor, 8.06K, 1%, 0603 case<\/span><\/td>\n<\/tr>\n<tr class=\"tablebody\">\n<td class=\"tablebody\"><span style=\"font-size: medium;\">R3<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebody\"><span style=\"font-size: medium;\">Resistor, 33K, 5%, 0603 case<\/span><\/td>\n<\/tr>\n<tr class=\"tablebodyalt\">\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Q1\/2<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">1<\/span><\/td>\n<td class=\"tablebodyalt\"><span style=\"font-size: medium;\">Transistor, Dual MOSFET, Fairchild: FDS6898A, 20V, 0.013\u03a9<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-size: medium;\"><br \/>\n<b>Figure 4<\/b><\/span> <span style=\"font-size: medium;\">shows the plot of efficiency vs. output current for the 2.5V, 3A circuit.<\/span><\/p>\n<p style=\"text-align: center;\">\u00a0<a href=\"http:\/\/rcl-radio.ru\/wp-content\/uploads\/2014\/10\/DI145Fig04.gif\" class=\"highslide-image\" onclick=\"return hs.expand(this);\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5478\" src=\"http:\/\/rcl-radio.ru\/wp-content\/uploads\/2014\/10\/DI145Fig04.gif\" alt=\"DI145Fig04\" width=\"395\" height=\"217\" \/><\/a><\/p>\n<div align=\"center\"><span style=\"font-size: medium;\"><i>Figure 4.<\/i><br \/>\n<\/span><\/div>\n<p><span style=\"font-size: medium;\"><br \/>\n<span id=\"result_box\" class=\"long_text\"><span title=\"The above circuits show that the MAX1953 can  be used to generate both the GPU and the memory supply rails for  graphic cards.\">\u0412\u044b\u0448\u0435\u00a0 \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u0430 \u0441\u0445\u0435\u043c\u0430 \u0441 MAX1953 \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0430 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u043f\u0438\u0442\u0430\u043d\u0438\u044f GPU \u0438 \u043f\u0430\u043c\u044f\u0442\u0438 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043a\u0430\u0440\u0442. <\/span><span title=\"The capability of operating down to 3V input  of the MAX1953 allows the total output power to be drawn from both  input supplies, 3.3V and 5V, so that neither of these rails is  overloaded.\">\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u043e\u043d\u0438\u0437\u0438\u0442\u044c \u043f\u0438\u0442\u0430\u043d\u0438\u0435 \u0434\u043e 3V \u0432\u044b\u0445\u043e\u0434\u0430 MAX1953 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043e\u0431\u0449\u0430\u044f \u0432\u044b\u0445\u043e\u0434\u043d\u0430\u044f \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0438\u0437\u0432\u043b\u0435\u043a\u0430\u0435\u0442\u0441\u044f \u0438\u0437 \u043e\u0431\u0435\u0438\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0439 3,3 \u0412 \u0438 5\u0412, \u0447\u0442\u043e \u0431\u044b \u043d\u0435 \u043e\u0434\u0438\u043d \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a \u044d\u0442\u043e\u0433\u043e \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u044f \u043d\u0435 \u0431\u044b\u043b \u043f\u0435\u0440\u0435\u0433\u0440\u0443\u0436\u0435\u043d. <\/span><span title=\"The 1MHz switching frequency helps reduce filter inductor  and capacitors size and cost.\">1MHz \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u044f\u044f \u0447\u0430\u0441\u0442\u043e\u0442\u0430 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0441\u043d\u0438\u0437\u0438\u0442\u044c \u0438\u043d\u0434\u0443\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u0438 \u0435\u043c\u043a\u043e\u0441\u0442\u044c \u043a\u043e\u043d\u0434\u0435\u043d\u0441\u0430\u0442\u043e\u0440\u043e\u0432 \u0444\u0438\u043b\u044c\u0442\u0440\u043e\u0432.<\/span><\/span><\/span><\/p>\n<p>\u0418\u0441\u0442\u043e\u0447\u043d\u0438\u043a &#8212; http:\/\/www.maxim-ic.com\/app-notes\/index.mvp\/id\/1044 <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Design of Graphic Chip and Related Circuitry Power Supplies Using MAX1953 1MHz PWM Step-down Controller \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 MAX1953 1MHz PWM &#8212; \u043f\u043e\u043d\u0438\u0436\u0430\u044e\u0449\u0438\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u043b\u0435\u0440 \u0410\u043d\u043d\u043e\u0442\u0430\u0446\u0438\u044f: \u041c\u043e\u0449\u043d\u044b\u0435 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0447\u0438\u043f\u044b \u0448\u0438\u0440\u043e\u043a\u043e \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u044b \u0432 \u043f\u0435\u0440\u0441\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u044c\u044e\u0442\u0435\u0440\u0430\u0445 \u0438 \u0438\u0433\u0440\u043e\u0432\u044b\u0445 \u043f\u0440\u0438\u0441\u0442\u0430\u0432\u043a\u0430\u0445. \u0422\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f \u043a \u043f\u0438\u0442\u0430\u043d\u0438\u044e \u0434\u043b\u044f \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430 \u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0441\u0445\u0435\u043c \u043a\u0440\u0430\u0439\u043d\u0435 \u0432\u0430\u0436\u043d\u044b \u0441 \u0442\u043e\u0447\u043a\u0438 \u0437\u0440\u0435\u043d\u0438\u044f \u0437\u0430\u0442\u0440\u0430\u0442 \u043c\u043e\u0449\u043d\u043e\u0441\u0442\u0438. \u0412 \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u043c\u044b \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-5474","post","type-post","status-publish","format-standard","hentry","category-11"],"views":4869,"_links":{"self":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/5474","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5474"}],"version-history":[{"count":1,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/5474\/revisions"}],"predecessor-version":[{"id":124848,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=\/wp\/v2\/posts\/5474\/revisions\/124848"}],"wp:attachment":[{"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5474"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rcl-radio.ru\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}