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鎮ㄥソ锛屾杩庝締(l谩i)鍒扮董搴�(k霉)闆诲瓙甯傚牬(ch菐ng)缍�(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺(c猫)

鎮ㄦ墍鍦ㄧ殑浣嶇疆锛�闆诲瓙鍏冨櫒浠堕噰璩�(g貌u)缍�(w菐ng) > IC鐧剧 > LP3947

LP3947 鐧�(f膩)甯冩檪(sh铆)闁� 鏅�(sh铆)闁擄細2025/4/30 9:37:33 鏌ョ湅 闁辫畝锛�30

LP3947鏄竴娆剧敱TI锛堝痉宸炲剙鍣級鎺ㄥ嚭鐨勯洐閫氶亾銆佷綆鍣伈銆佷綆澹撳樊绶氭�х┅(w臎n)澹撳櫒锛圠DO锛�銆傝┎鑺墖瑷�(sh猫)瑷�(j矛)鐢ㄤ簬鐐烘晱鎰熺殑妯℃摤闆昏矾鍜屾暩(sh霉)瀛楅浕璺彁渚涚┅(w臎n)瀹氱殑闆绘簮闆诲锛岀壒鍒ラ仼鍚堜簬闇�瑕侀珮闆绘簮鎶戝埗姣旓紙PSRR锛夊拰浣庡櫔鑱茬殑鎳�(y墨ng)鐢ㄥ牬(ch菐ng)鏅�傚畠鍏锋湁鐛�(d煤)绔嬬殑鍏╁��(g猫)杓稿嚭閫氶亾锛屾瘡鍊�(g猫)閫氶亾閮藉彲浠ュ柈鐛�(d煤)閰嶇疆杓稿嚭闆诲锛岄潪甯搁仼鍚堝璺緵闆婚渶姹傜殑渚挎敎寮忚ō(sh猫)鍌�銆�
銆�銆�LP3947閲囩敤鍏堥��(j矛n)鐨凜MOS宸ヨ棟鍒堕�狅紝鑳藉鍦ㄨ純瀵殑杓稿叆闆诲鑼冨湇鍏�(n猫i)宸ヤ綔锛屽苟涓斿叿鍌欏揩閫熺灛鎱�(t脿i)闊挎噳(y墨ng)鑳藉姏浠ュ強鍑鸿壊鐨勮矤(f霉)杓夊拰绶氳矾瑾�(di脿o)绡�(ji茅)鎬ц兘銆�

鍙冩暩(sh霉)

杓稿叆闆诲鑼冨湇锛�2.7V鑷�5.5V
銆�銆�杓稿嚭闆诲鑼冨湇锛�0.8V鑷�3.3V锛堝彲瑾�(di脿o)锛�
銆�銆�杓稿嚭闆绘祦锛氭瘡閫氶亾鏈�澶�200mA
銆�銆�闈滄厠(t脿i)闆绘祦锛氬吀鍨嬪��25渭A
銆�銆�闂�(gu膩n)鏂烽浕娴侊細鍏稿瀷鍊�1渭A
銆�銆�闆绘簮鎶戝埗姣旓紙PSRR锛夛細鍦�1kHz鏅�(sh铆)楂橀仈(d谩)80dB
銆�銆� dropout闆诲锛氬吀鍨嬪��270mV
銆�銆�灏佽褰㈠紡锛歁SOP-10

鐗规��

LP3947鐨勪富瑕佺壒鎬у寘鎷細
銆�銆�1. 楂橀浕婧愭姂鍒舵瘮锛圥SRR锛夛紝鑳藉鏈夋晥闄嶄綆闆绘簮鍣伈灏�(du矛)闆昏矾鐨勫奖闊�銆�
銆�銆�2. 闆欓�氶亾鐛�(d煤)绔嬭几鍑猴紝鏀寔鍏╄矾涓嶅悓鐨勯浕澹撹ō(sh猫)缃�銆�
銆�銆�3. 瓒呬綆鍣伈瑷�(sh猫)瑷�(j矛)锛岄仼鐢ㄤ簬灏�(du矛)闆绘簮绱斿噲搴﹁姹傛サ楂樼殑鎳�(y墨ng)鐢�锛屽灏勯牷闆昏矾銆侀煶闋婚浕璺瓑銆�
銆�銆�4. 蹇�熺灛鎱�(t脿i)闊挎噳(y墨ng)锛岀⒑淇濆湪璨�(f霉)杓夎畩鍖栨檪(sh铆)杓稿嚭闆诲淇濇寔绌�(w臎n)瀹�銆�
銆�銆�5. 鍏�(n猫i)缃煭璺繚璀�(h霉)鍜岄亷(gu貌)婧繚璀�(h霉)鍔熻兘锛屾彁鍗囩郴绲�(t菕ng)鍙潬鎬�銆�
銆�銆�6. 灏忓瀷灏佽锛岀瘈(ji茅)鐪丳CB绌洪枔锛屼究浜庡竷灞�鑸囧竷绶�銆�
銆�銆�7. 鏀寔浣胯兘寮曡叧鎺у埗锛屽厑瑷辩敤鎴堕�氶亷(gu貌)澶栭儴淇¤櫉(h脿o)瀵�(sh铆)鐝�(xi脿n)鑺墖鐨勯枊鍟熸垨闂�(gu膩n)闁夛紝寰炶�岄仈(d谩)鍒扮渷闆荤殑鐩殑銆�

鎳�(y墨ng)鐢�

LP3947閬╃敤浜庝互涓嬫噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅細
銆�銆�1. 渚挎敎寮忛浕瀛愯ō(sh猫)鍌欙紝渚嬪鏅鸿兘鎵嬫(j墨)銆佸钩鏉块浕鑵�銆佷究鏀滃紡濯掗珨鎾斁鍣ㄧ瓑銆�
銆�銆�2. 鐒�(w煤)绶氶�氫俊瑷�(sh猫)鍌欙紝濡傝棈(l谩n)鐗欐ā濉�銆乄i-Fi妯″鍜孏PS鎺ユ敹鍣�銆�
銆�銆�3. 闊抽牷铏曠悊瑷�(sh猫)鍌�锛屽寘鎷�虫(j墨)鏀惧ぇ鍣ㄣ�丏AC/ADC闆昏矾绛�銆�
銆�銆�4. 閱�(y墨)鐧傞浕瀛愯ō(sh猫)鍌欙紝濡傝澹撹▓(j矛)銆佽绯栧剙绛�銆�
銆�銆�5. 宸ユキ(y猫)鑷嫊(d貌ng)鍖栧剙琛ㄥ強鍌虫劅鍣ㄤ緵闆�銆�
銆�銆�6. 浠讳綍闇�瑕佷綆鍣伈銆侀珮PSRR闆绘簮瑙ｆ焙鏂规鐨勫湴鏂�銆�

鏇夸唬鍨嬭櫉(h脿o)

TPS7A49, LP5947

lp3947鎺ㄨ枽渚涙噳(y墨ng)鍟� 鏇村>

  • 鐢�(ch菐n)鍝佸瀷铏�(h脿o)
  • 渚涙噳(y墨ng)鍟�
  • 鏁�(sh霉)閲�
  • 寤犲晢
  • 灏佽/鎵硅櫉(h脿o)
  • 瑭㈠児(ji脿)

lp3947璩囨枡 鏇村>

  • 鍨嬭櫉(h脿o)
  • 鎻忚堪
  • 鍝佺墝
  • 闁辫涓嬭級