{"id":27793,"date":"2025-06-20T09:00:48","date_gmt":"2025-06-20T01:00:48","guid":{"rendered":"https:\/\/techclass.wfjydl.com\/?p=27793"},"modified":"2025-11-13T17:03:52","modified_gmt":"2025-11-13T09:03:52","slug":"%e7%ba%bf%e6%80%a7%e7%a8%b3%e5%8e%8b%e5%99%a8%e7%9a%84%e8%be%93%e5%85%a5%e8%be%93%e5%87%ba%e7%94%b5%e5%ae%b9%e8%ae%be%e8%ae%a1%e5%92%8c%e7%ba%b9%e6%b3%a2%e5%af%b9%e7%ad%96","status":"publish","type":"post","link":"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc-ldo\/17148","title":{"rendered":"\u7ebf\u6027\u7a33\u538b\u5668\u7684\u8f93\u5165\u8f93\u51fa\u7535\u5bb9\u8bbe\u8ba1\u548c\u7eb9\u6ce2\u5bf9\u7b56"},"content":{"rendered":"\\(\\)\n<p>\u672c\u6587\u5c06\u4ecb\u7ecd\u7ebf\u6027\u7a33\u538b\u5668IC\u8bbe\u8ba1\u4e2d\u7684\u57fa\u672c\u7279\u6027\u4e0e\u6ce8\u610f\u4e8b\u9879\u3002\u9664\u8f93\u5165\u8f93\u51fa\u7535\u538b\u5dee\u3001\u77ac\u6001\u54cd\u5e94\u4e0e\u7eb9\u6ce2\u6291\u5236\u6bd4\u4e4b\u95f4\u7684\u5173\u8054\u6027\u5916\uff0c\u8fd8\u4f1a\u8be6\u7ec6\u9610\u8ff0\u8f93\u51fa\u548c\u8f93\u5165\u7535\u5bb9\u5668\u7684\u9009\u578b\u4e0e\u5e03\u5c40\u8981\u70b9\u3002\u53e6\u5916\uff0c\u8fd8\u4f1a\u901a\u8fc7\u6d6e\u52a8\u5de5\u4f5c\u72b6\u6001\u4e0b\u5982\u4f55\u6291\u5236\u7eb9\u6ce2\u7535\u538b\u5347\u9ad8\u3001\u4ee5\u53ca\u8fc7\u7535\u6d41\u4fdd\u62a4\u7684\u5de5\u4f5c\u7279\u6027\u7b49\u4e3b\u9898\uff0c\u4e3a\u6784\u5efa\u7a33\u5b9a\u7684\u7535\u6e90\u7535\u8def\u63d0\u4f9b\u5b9e\u7528\u5efa\u8bae\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"toc1\">\u7ebf\u6027\u7a33\u538b\u5668\u7684\u8f93\u5165\u8f93\u51fa\u7535\u538b\u5dee\u4e0e\u77ac\u6001\u54cd\u5e94\u53ca\u7eb9\u6ce2\u6291\u5236\u6bd4\u7684\u5173\u7cfb<\/h2>\n<p>\u672c\u4e3b\u9898\u6d89\u53ca\u5230\u7684\u89c4\u683c\u503c\u548c\u7279\u6027\u66f2\u7ebf\u867d\u7136\u662f\u4ee5BA1117\u4e3a\u4f8b\u8fdb\u884c\u89e3\u8bf4\u7684\uff0c\u4f46\u539f\u5219\u4e0a\u9002\u7528\u4e8e\u6240\u6709\u7ebf\u6027\u7a33\u538b\u5668IC\u3002\u7ebf\u6027\u7a33\u538b\u5668IC\u82e5\u65e0\u6cd5\u786e\u4fdd\u89c4\u5b9a\u7684\u538b\u964d\u7535\u538b\uff08\u8f93\u5165\u8f93\u51fa\u4e4b\u95f4\u7684\u7535\u538b\u5dee\uff09\uff0c\u5c31\u65e0\u6cd5\u6b63\u5e38\u5de5\u4f5c\u3002\u8f93\u5165\u7535\u538b\u7684\u6700\u5c0f\u503c\uff0c\u9700\u4ece\u6280\u672f\u89c4\u683c\u4e66\u7684\u201c\u538b\u964d\u7535\u538b vs 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alt=\"\u7ebf\u6027\u7a33\u538b\u5668\u7684\u8f93\u5165\u8f93\u51fa\u7535\u538b\u5dee\u4e0e\u77ac\u6001\u54cd\u5e94\u53ca\u7eb9\u6ce2\u6291\u5236\u6bd4\u7684\u5173\u7cfb\" width=\"310\" height=\"321\" 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loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2025\/06\/linear_regulatorics_02_f02.png\" alt=\"\u7ebf\u6027\u7a33\u538b\u5668\u7684\u8f93\u5165\u8f93\u51fa\u7535\u538b\u5dee\u4e0e\u77ac\u6001\u54cd\u5e94\u53ca\u7eb9\u6ce2\u6291\u5236\u6bd4\u7684\u5173\u7cfb\" width=\"355\" height=\"327\" \/><\/p>\n<p>\u5728\u6ce8\u91cd\u6548\u7387\u7684\u60c5\u51b5\u4e0b\uff0c\u5e94\u5c3d\u91cf\u51cf\u5c0f\u8f93\u5165\u8f93\u51fa\u7535\u538b\u5dee\uff0c\u4f46\u53ef\u80fd\u5bfc\u81f4\u65e0\u6cd5\u53d1\u6325\u51fa\u9884\u671f\u7279\u6027\u3002\u5728\u672c\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u57fa\u4e8e\u83b7\u5f97\u9884\u671f\u8d1f\u8f7d\u54cd\u5e94\u6027\u80fd\u548cPSRR\u6240\u9700\u7684\u80fd\u529b\u6765\u63a2\u8ba8\u8f93\u5165\u7535\u538b\uff0c\u5e76\u5bfb\u6c42\u6548\u7387\u4e0e\u5404\u9879\u7279\u6027\u4e4b\u95f4\u7684\u5e73\u8861\u70b9\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"toc2\">\u7ebf\u6027\u7a33\u538b\u5668\u8f93\u51fa\u7535\u5bb9\u76f8\u5173\u7684\u6ce8\u610f\u4e8b\u9879<\/h2>\n<p>\u8f93\u51fa\u7535\u5bb9\u5668\u5bf9\u4e8e\u7ef4\u6301\u7a33\u538b\u5668\u7684\u7a33\u5b9a\u6027\u800c\u8a00\u81f3\u5173\u91cd\u8981\u3002\u4e0b\u9762\u4ee5<a href=\"https:\/\/www.wfjydl.com\/products\/power-management\/linear-regulators\/standard-voltage-regulators\/ba1117fp-product\" target=\"_blank\" rel=\"noopener\">BA1117<\/a>\u4e3a\u4f8b\u5217\u51fa\u4e86\u8f93\u51fa\u7535\u5bb9\u5668\u76f8\u5173\u7684\u6ce8\u610f\u4e8b\u9879\u3002\u5927\u591a\u6570\u6ce8\u610f\u4e8b\u9879\u5e76\u975e\u4ec5\u9650\u4e8eBA1117\uff0c\u800c\u662f\u9002\u7528\u4e8e\u6240\u6709\u7ebf\u6027\u7a33\u538b\u5668\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2025\/06\/linear_regulatorics_02_f03.png\" alt=\"\u7ebf\u6027\u7a33\u538b\u5668\u8f93\u51fa\u7535\u5bb9\u76f8\u5173\u7684\u6ce8\u610f\u4e8b\u9879\" width=\"589\" height=\"337\" \/><\/p>\n<h3 id=\"toc3\">\u5728\u5b9e\u88c5\u7535\u8def\u677f\u4e0a\u7684\u914d\u7f6e<\/h3>\n<p>\u8f93\u51fa\u7535\u5bb9\u5668\\(C_{OUT}\\)\u7528\u6765\u4f7f\u53cd\u9988\u73af\u8def\u66f4\u7a33\u5b9a\uff0c\u5e94\u5c3d\u53ef\u80fd\u9760\u8fd1IC\u7684\\(V_{OUT}\\)\u5f15\u811a\u8fdb\u884c\u8fde\u63a5\uff0c\u5e76\u540c\u6837\u8fde\u63a5\u81f3\u90bb\u8fd1\u7684\u63a5\u5730\u7ebf\u3002\u8fd9\u4e00\u70b9\u4e5f\u9002\u7528\u4e8eBA1117\u4ee5\u5916\u7684\u5176\u4ed6\u578b\u53f7\u4ea7\u54c1\u3002<\/p>\n<h3 id=\"toc4\">\u7535\u5bb9\u91cf<\/h3>\n<p>BA1117\u7684\u8f93\u51fa\u7535\u5bb9\u5668\u7684\u7535\u5bb9\u91cf\u9700\u572822\u03bcF\u4ee5\u4e0a\u3002\u7535\u5bb9\u91cf\u8fc7\u5c0f\u53ef\u80fd\u4f1a\u5bfc\u81f4\u632f\u8361\u3002\u7535\u5bb9\u91cf\u8f83\u5927\u65f6\uff0c\u53cd\u9988\u73af\u8def\u7684\u7a33\u5b9a\u6027\u548c\u8f93\u51fa\u77ac\u6001\u54cd\u5e94\u7279\u6027\u4f1a\u5f97\u5230\u63d0\u5347\u3002\u4e0d\u540c\u7ebf\u6027\u7a33\u538b\u5668IC\u7684\u6700\u5c0f\u7535\u5bb9\u91cf\u53ef\u80fd\u6709\u6240\u4e0d\u540c\uff0c\u5177\u4f53\u8bf7\u53c2\u7167\u6240\u7528IC\u7684\u6280\u672f\u89c4\u683c\u4e66\u3002<\/p>\n<p>\u7535\u5bb9\u91cf\u6700\u5927\u503c\u5e76\u65e0\u9650\u5236\uff0c\u4f46\u9700\u6ce8\u610f\u4ee5\u4e0b\u4e8b\u9879\uff1a\u589e\u5927\u7535\u5bb9\u91cf\u4f1a\u4f7f\u7535\u6e90\u5f00\u542f\u65f6\u8f93\u51fa\u7535\u5bb9\u7684\u5145\u7535\u65f6\u95f4\uff08\u8fbe\u5230\u8bbe\u5b9a\u7535\u538b\u6240\u9700\u7684\u65f6\u95f4\uff09\u4ee5\u53ca\u5173\u95ed\u65f6\u7684\u653e\u7535\u65f6\u95f4\uff08\u964d\u81f3\u7ea6\u7b49\u4e8e\u63a5\u5730\u7535\u4f4d\u6240\u9700\u7684\u65f6\u95f4\uff09\u5ef6\u957f\u3002\u9700\u8981\u786e\u8ba4\u8fd9\u4e9b\u65f6\u95f4\u662f\u5426\u6ee1\u8db3\u4f9b\u7535\u8bbe\u5907\u53ca\u7535\u8def\u7684\u7535\u6e90\u76f8\u5173\u53c2\u6570\u8981\u6c42\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u5f53\u5173\u95ed\u8f93\u5165\u7535\u6e90\u65f6\uff0c\u82e5\u51fa\u73b0\u8f93\u51fa\u7535\u538b\u4e0e\u8f93\u5165\u7535\u538b\u53cd\u76f8\uff08\u8f93\u51fa\u7535\u538b\u9ad8\u4e8e\u8f93\u5165\u7535\u538b\uff09\u7684\u60c5\u51b5\uff0c\u53ef\u80fd\u5bfc\u81f4\u5927\u7535\u6d41\u53cd\u5411\u6d41\u5165IC\u5185\u90e8\uff0c\u8fdb\u800c\u9020\u6210\u5668\u4ef6\u635f\u574f\u3002\u5728\u8fd9\u79cd\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u901a\u8fc7\u589e\u8bbe\u9632\u9006\u6d41\u65c1\u8def\u4e8c\u6781\u7ba1\u8fdb\u884c\u89c4\u907f\uff08\u89c1\u4e0a\u56fe\uff09\u3002\u6240\u9009\u7528\u7684\u4e8c\u6781\u7ba1\u5fc5\u987b\u5728\u6bd4IC\u8f93\u51fa\u6676\u4f53\u7ba1\u56e0\u8f93\u5165\u8f93\u51fa\u7535\u538b\u53cd\u76f8\u800c\u5bfc\u901a\u7684\u7535\u538b\u66f4\u4f4e\u7684\u7535\u538b\u4e0b\u5bfc\u901a\uff0c\u4ee5\u65c1\u8def\u53cd\u5411\u7535\u6d41\uff0c\u56e0\u6b64\u9700\u8981\u9009\u7528\u5177\u5907\u6709\u6548\u6b63\u5411\u7535\u538b\\(V_F\\)\u7684\u4e8c\u6781\u7ba1\u3002\u90e8\u5206IC\u5177\u5907\u8fd9\u79cd\u4fdd\u62a4\u529f\u80fd\uff0c\u5177\u4f53\u9700\u8981\u786e\u8ba4\u76f8\u5e94\u7684\u6280\u672f\u89c4\u683c\u4e66\u3002<\/p>\n<h3 id=\"toc5\">ESR\uff08\u7b49\u6548\u4e32\u8054\u7535\u963b\uff09<\/h3>\n<p>BA1117\u8f93\u51fa\u7535\u5bb9\u7684ESR\u9700\u63a7\u5236\u57285\u03a9\u4ee5\u4e0b\u3002ESR\u503c\u8fc7\u5927\u4f1a\u5bfc\u81f4\u53cd\u9988\u73af\u8def\u4e0d\u7a33\u5b9a\uff0c\u4ece\u800c\u5f15\u53d1\u632f\u8361\u95ee\u9898\u3002\u53e6\u5916\uff0c\u8be5ESR\u503c\u662f\u57fa\u4e8eIC\u5355\u4f53\u53ca\u7535\u963b\u8d1f\u8f7d\u7684\u8bc4\u4f30\u7ed3\u679c\u800c\u83b7\u5f97\u7684\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u7531\u4e8e\u4f1a\u53d7\u5230\u7535\u8def\u677f\u8d70\u7ebf\u963b\u6297\u3001\u8f93\u5165\u7aef\u7535\u6e90\u963b\u6297\u53ca\u8d1f\u8f7d\u963b\u6297\u7684\u5f71\u54cd\u800c\u53d1\u751f\u53d8\u5316\uff0c\u56e0\u6b64\u52a1\u5fc5\u5728\u5b9e\u9645\u88c5\u673a\u72b6\u6001\u4e0b\u5145\u5206\u786e\u8ba4\u662f\u5426\u6709\u632f\u8361\u73b0\u8c61\u3002<\/p>\n<p>\u901a\u5e38\uff0c\u4e0d\u4ec5\u8f93\u51fa\u7535\u5bb9\u7684ESR\u8fc7\u5927\u65f6\u4f1a\u5bfc\u81f4\u73af\u8def\u4e0d\u7a33\u5b9a\u5e76\u5f15\u53d1\u632f\u8361\uff0cESR\u8fc7\u5c0f\u65f6\u4e5f\u540c\u6837\u4f1a\u5f15\u53d1\u6b64\u7c7b\u95ee\u9898\u3002ESR\u7684\u4e0a\u9650\u548c\u4e0b\u9650\u56e0IC\u800c\u5f02\uff0c\u5177\u4f53\u9700\u8981\u786e\u8ba4\u5404\u4ea7\u54c1\u7684\u6280\u672f\u89c4\u683c\u4e66\u3002<\/p>\n<h3 id=\"toc6\">\u94dd\u7535\u89e3\u7535\u5bb9\u5668<\/h3>\n<p>\u8f93\u51fa\u7535\u5bb9\u5668\u53ef\u91c7\u7528\u94dd\u7535\u89e3\u7535\u5bb9\u5668\u3002\u94dd\u7535\u89e3\u7535\u5bb9\u5668\u867d\u7136\u4ef7\u683c\u4f4e\u5ec9\u4e14\u80fd\u83b7\u5f97\u8f83\u5927\u5bb9\u91cf\uff0c\u4f46\u9700\u6ce8\u610f\u90e8\u5206\u4ea7\u54c1\u5728\u4f4e\u6e29\u73af\u5883\u4e0b\u4f1a\u51fa\u73b0\u5bb9\u91cf\u6025\u5267\u51cf\u5c11\u53caESR\u4e0a\u5347\u7684\u73b0\u8c61\u3002<\/p>\n<h3 id=\"toc7\">\u9676\u74f7\u7535\u5bb9\u5668<\/h3>\n<p>\u4f7f\u7528\u9676\u74f7\u7535\u5bb9\u5668\u4f5c\u4e3a\u8f93\u51fa\u7535\u5bb9\u65f6\uff0c\u63a8\u8350\u9009\u7528\u6e29\u5ea6\u7279\u6027\u4f18\u5f02\u7684X5R\u548cX7R\u3002Z5U\u3001Y5V\u3001F\u7684\u5bb9\u91cf\u53d8\u5316\u8f83\u5927\uff0c\u8bf7\u52ff\u4f7f\u7528\u3002\u8bf7\u6ce8\u610f\uff0c\u7531\u4e8e\u5bb9\u5dee\u3001\u6e29\u5ea6\u7279\u6027\u548cDC\u504f\u538b\u7279\u6027\u4f1a\u5bfc\u81f4\u7535\u5bb9\u503c\u4e0b\u964d\uff0c\u6240\u4ee5\u9700\u8981\u786e\u4fdd\u5728\u4f7f\u7528\u6761\u4ef6\u4e0b\u6240\u9009\u7535\u5bb9\u5668\u7684\u5bb9\u503c\u4e0d\u4f4e\u4e8e\u6280\u672f\u89c4\u683c\u4e66\u4e2d\u89c4\u5b9a\u7684\u6700\u5c0f\u503c\u3002\u53e6\u5916\uff0cDC\u504f\u538b\u7279\u6027\u8fd8\u53d6\u51b3\u4e8e\u5916\u58f3\u5c3a\u5bf8\uff0c\u968f\u7740\u5c3a\u5bf8\u7684\u51cf\u5c0f\uff0c\u7535\u5bb9\u91cf\u4e0b\u964d\u5e45\u5ea6\u5448\u589e\u5927\u8d8b\u52bf\u3002<\/p>\n<h3 id=\"toc8\">\u8f93\u51fa\u8d1f\u8f7d\u77ac\u6001\u54cd\u5e94<\/h3>\n<p>\u5f53\u8f93\u51fa\u8d1f\u8f7d\u7535\u6d41\u6025\u5267\u6ce2\u52a8\u65f6\uff0c\u8f93\u51fa\u7535\u538b\u53ef\u80fd\u51fa\u73b0\u77ac\u65f6\u6ce2\u52a8\u73b0\u8c61\u3002\u82e5\u6b32\u51cf\u5c0f\u8be5\u7535\u538b\u6ce2\u52a8\uff0c\u8bf7\u589e\u5927\u8f93\u51fa\u7535\u5bb9\u7684\u7535\u5bb9\u91cf\u3002\u7136\u800c\uff0c\u82e5\u589e\u52a0\u8f93\u51fa\u7535\u5bb9\u7684\u5bb9\u91cf\uff0c\u4ece\u8f93\u5165\u7aef\u5411\u8f93\u51fa\u7535\u5bb9\u5668\u5145\u7535\u7684\u7535\u8377\u91cf\u5c06\u4f1a\u589e\u52a0\uff0c\u56e0\u6b64\u5f53\u8f93\u5165\u7aef\u7535\u6e90\u7684\u8d1f\u8f7d\u54cd\u5e94\u7279\u6027\u8f83\u5dee\u65f6\uff0c\u8f93\u5165\u7535\u538b\u540c\u6837\u53ef\u80fd\u51fa\u73b0\u77ac\u65f6\u8dcc\u843d\u73b0\u8c61\u3002\u8981\u60f3\u9632\u6b62\u8fd9\u79cd\u73b0\u8c61\uff0c\u9700\u5c06\u8f93\u5165\u7535\u5bb9\u5668\u7684\u7535\u5bb9\u91cf\u63d0\u5347\u81f3\u4e0e\u8f93\u51fa\u7535\u5bb9\u5668\u7684\u7535\u5bb9\u91cf\u76f8\u5f53\u7684\u7a0b\u5ea6\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"toc9\">\u7ebf\u6027\u7a33\u538b\u5668\u8f93\u5165\u7535\u5bb9\u76f8\u5173\u7684\u7684\u6ce8\u610f\u4e8b\u9879<\/h2>\n<p>\u8f93\u5165\u7535\u5bb9\u5668\u5728\u7535\u8def\u5de5\u4f5c\u65f6\u7528\u6765\u6291\u5236\u8f93\u5165\u7535\u6e90\u7684\u7535\u4f4d\u6ce2\u52a8\uff0c\u4ee5\u4f7f\u7ebf\u6027\u7a33\u538b\u5668IC\u7684\u8f93\u5165\u4fdd\u6301\u7a33\u5b9a\u3002\u5c24\u5176\u5728\u8f93\u5165\u5e03\u7ebf\uff08\u7535\u8def\u677f\u8584\u819c\u5e03\u7ebf\uff09\u8f83\u957f\u6216\u8f93\u5165\u7535\u6e90\u963b\u6297\u8f83\u9ad8\u65f6\uff0c\u53ef\u6709\u6548\u786e\u4fddLDO\u8f93\u5165\u7535\u6e90\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n<p>\u4e0b\u9762\u4ee5<a href=\"https:\/\/www.wfjydl.com\/products\/power-management\/linear-regulators\/standard-voltage-regulators\/ba1117fp-product\" target=\"_blank\" rel=\"noopener\">BA1117<\/a>\u4e3a\u4f8b\uff0c\u4ecb\u7ecd\u8f93\u5165\u7535\u5bb9\u76f8\u5173\u7684\u6ce8\u610f\u4e8b\u9879\u3002\u4e0e\u8f93\u51fa\u7535\u5bb9\u5668\u4e00\u6837\uff0c\u5927\u591a\u6570\u6ce8\u610f\u4e8b\u9879\u5e76\u975e\u4ec5\u9650\u4e8eBA1117\uff0c\u800c\u662f\u9002\u7528\u4e8e\u6240\u6709\u7684\u7ebf\u6027\u7a33\u538b\u5668\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2025\/06\/linear_regulatorics_02_f04.png\" alt=\"\u7ebf\u6027\u7a33\u538b\u5668\u8f93\u5165\u7535\u5bb9\u76f8\u5173\u7684\u7684\u6ce8\u610f\u4e8b\u9879\" width=\"556\" height=\"215\" \/><\/p>\n<h3 id=\"toc10\">\u5728\u5b9e\u88c5\u7535\u8def\u677f\u4e0a\u7684\u914d\u7f6e<\/h3>\n<p>\u8f93\u5165\u7535\u5bb9\u5668\\(C_{IN}\\)\u5e94\u5c3d\u53ef\u80fd\u9760\u8fd1\\(V_{IN}\\)\u5f15\u811a\u8fdb\u884c\u8fde\u63a5\uff0c\u5e76\u540c\u6837\u8fde\u63a5\u81f3\u90bb\u8fd1\u7684\u63a5\u5730\u7ebf\u3002\u8bf7\u5c06\u8f93\u5165\u7535\u5bb9\u5668\u914d\u7f6e\u5728\u8ddd\u79bbIC 1cm\u4ee5\u5185\u7684\u8303\u56f4\u5185\u3002\u5982\u524d\u6240\u8ff0\uff0c\u6b64\u4e3e\u65e8\u5728\u964d\u4f4e\u8f93\u5165\u7535\u6e90\u963b\u6297\uff0c\u5e76\u5c3d\u53ef\u80fd\u6d88\u9664\u7535\u8def\u677f\u5bc4\u751f\u5206\u91cf\u7684\u5f71\u54cd\u3002<\/p>\n<h3 id=\"toc11\">\u7535\u5bb9\u91cf<\/h3>\n<p>\u4ee5\u672c\u793a\u4f8b\u4e2d\u7684BA1117\u4e3a\u4f8b\uff0c\u5176\u91c7\u7528\u7684\u662f10uF\u7684\u8f93\u5165\u7535\u5bb9\u3002\u5f53\u8f93\u51fa\u7535\u6d41\u53d1\u751f\u6025\u5267\u53d8\u5316\u65f6\uff0c\u53ef\u901a\u8fc7\u589e\u5927\u8f93\u51fa\u7535\u5bb9\u7684\u7535\u5bb9\u91cf\u6765\u6291\u5236\u7535\u538b\u77ac\u65f6\u6ce2\u52a8\u3002\u4f46\u82e5\u8f93\u5165\u7535\u6e90\u7aef\u7684\u77ac\u65f6\u7535\u6d41\u4f9b\u7ed9\u80fd\u529b\u4e0d\u8db3\uff0c\u5219\u53ef\u80fd\u5bfc\u81f4\u8f93\u5165\u7535\u538b\u4e0b\u964d\u3002\u8981\u60f3\u9632\u6b62\u8fd9\u79cd\u73b0\u8c61\uff0c\u9700\u5c06\u8f93\u5165\u7535\u5bb9\u5668\u7684\u7535\u5bb9\u91cf\u63d0\u5347\u81f3\u4e0e\u8f93\u51fa\u7535\u5bb9\u5668\u7684\u7535\u5bb9\u91cf\u76f8\u5f53\u7684\u7a0b\u5ea6\u3002\u5173\u4e8e\u5927\u5bb9\u91cf\uff08Bulk\uff09\u7535\u5bb9\u5668\uff0c\u94dd\u7535\u89e3\u7535\u5bb9\u5668\u9700\u4e0e\u9676\u74f7\u7535\u5bb9\u5668\u5e76\u8054\u8fde\u63a5\u3002<\/p>\n<h3 id=\"toc12\">ESR\uff08\u7b49\u6548\u4e32\u8054\u7535\u963b\uff09<\/h3>\n<p>\u8f93\u5165\u7535\u5bb9\u5668\u7684\u4e3b\u8981\u76ee\u7684\u662f\u964d\u4f4e\u8f93\u5165\u7535\u6e90\u963b\u6297\uff0c\u56e0\u6b64\u8981\u6c42\u5176ESR\uff08\u7b49\u6548\u4e32\u8054\u7535\u963b\uff09\u8d8a\u5c0f\u8d8a\u597d\u3002\u5982\u679c\u6d41\u5411IC\u7684\u8f93\u5165\u7535\u6d41\u65e0\u7a81\u53d8\u60c5\u51b5\uff0c\u4e5f\u53ef\u9009\u7528\u5176\u4ed6\u7c7b\u578b\u7684\u7535\u5bb9\u5668\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"toc13\">\u9632\u6b62\u6d6e\u52a8\u5de5\u4f5c\u7ebf\u6027\u7a33\u538b\u5668\u7684\u8f93\u51fa\u7eb9\u6ce2\u7535\u538b\u589e\u52a0<\/h2>\n<p>\u672c\u8282\u662f\u6709\u5173\u914d\u5907ADJ\u5f15\u811a\u7684\u6d6e\u52a8\u5de5\u4f5c\u7ebf\u6027\u7a33\u538b\u5668\u7684\u5185\u5bb9\u3002\u968f\u7740\u8f93\u51fa\u7535\u538b\u5347\u9ad8\uff0c\u8f93\u5165\u7eb9\u6ce2\u4f1a\u88ab\u653e\u5927\uff0c\u4ece\u800c\u5bfc\u81f4IC\u7684\u7eb9\u6ce2\u6291\u5236\u6bd4\u6076\u5316\u3002\u4f5c\u4e3a\u5bf9\u7b56\uff0c\u53ef\u5728ADJ\u5f15\u811a\u4e0e\u63a5\u5730\u4e4b\u95f4\u6dfb\u52a0\u7535\u5bb9\u5668\\(C_{ADJ}\\)\uff0c\u4ee5\u6291\u5236\u7eb9\u6ce2\u88ab\u653e\u5927\u5e76\u9632\u6b62\u7eb9\u6ce2\u6291\u5236\u6bd4\u6076\u5316\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2025\/06\/linear_regulatorics_02_f05.png\" alt=\"\u9632\u6b62\u6d6e\u52a8\u5de5\u4f5c\u7ebf\u6027\u7a33\u538b\u5668\u7684\u8f93\u51fa\u7eb9\u6ce2\u7535\u538b\u589e\u52a0\" width=\"453\" height=\"215\" \/><\/p>\n<p>\u4e3a\u9632\u6b62\u7eb9\u6ce2\u6291\u5236\u6bd4\u6076\u5316\uff0c\u5982\u4e0b\u9762\u7684\u516c\u5f0f\u6240\u793a\uff0c\u5728\u6240\u6709\u7eb9\u6ce2\u9891\u7387\u4e0b\uff0c\\(C_{ADJ}\\)\u7684\u963b\u6297\u5e94\u4f4e\u4e8e\\(R_1\\)\u3002<br \/>\n<span class=\"mathjax-text\">\\(\\displaystyle \\frac{1}{2\\pi \\times f_{\\text{RIPPLE}} \\times C_{\\text{ADJ}}} &lt; R_1\\)<\/span><\/p>\n<p>\\(f_{RIPPLE}\\) \uff1a\u7eb9\u6ce2\u9891\u7387\uff3bHz\uff3d<br \/>\n\u4e0b\u56fe\u662fBA1117\u7684\\(C_{ADJ}\\)\u4e0e\u7eb9\u6ce2\u6291\u5236\u6bd4\u7684\u53d8\u5316\u5173\u7cfb\u66f2\u7ebf\uff0c\u4ece\u4e2d\u53ef\u4ee5\u770b\u5230\\(C_{ADJ}\\)\u7684\u6548\u679c\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2025\/06\/linear_regulatorics_02_f06.png\" alt=\"\u9632\u6b62\u6d6e\u52a8\u5de5\u4f5c\u7ebf\u6027\u7a33\u538b\u5668\u7684\u8f93\u51fa\u7eb9\u6ce2\u7535\u538b\u589e\u52a0\" width=\"486\" height=\"397\" \/><\/p>\n<h2 id=\"toc14\">\u7ebf\u6027\u7a33\u538b\u5668\u7684\u8d1f\u8f7d\u4e0e\u542f\u52a8\u76f8\u5173\u7684\u6ce8\u610f\u4e8b\u9879<\/h2>\n<p><a href=\"https:\/\/www.wfjydl.com\/products\/power-management\/linear-regulators\/standard-voltage-regulators\/ba1117fp-product\" target=\"_blank\" 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