鏅傞枔锛�2025/5/21 21:49:03
闁辫畝锛�20
LM2575S-3.3鏄竴娆剧敱寰峰窞鍎�鍣紙TI锛夌敓鐢�(ch菐n)鐨勯浕澹撹绡�(ji茅)鍣ㄨ姱鐗�锛屽爆浜嶭M2575绯诲垪銆傝┎绯诲垪鑺墖鏄竴绋啊鍠槗鐢ㄧ殑闄嶅鍨嬬┅(w臎n)澹撳櫒锛岃兘澶犲皣杓冮珮鐨勮几鍏ラ浕澹撹綁鎻涚偤绌�(w臎n)瀹氱殑3.3V杓稿嚭闆诲銆侺M2575S-3.3鍏х疆浜嗛枊闂滅鍜岃鍎熺恫(w菐ng)绲�锛岀啊鍖栦簡瑷▓寰╅洔搴�锛屽苟涓斿叿鏈夎純楂樼殑鏁堢巼鍜岀┅(w臎n)瀹氭��銆�
銆�銆�LM2575S-3.3閬╃敤浜庨渶瑕侀珮鏁堢巼銆佷綆鍣伈浠ュ強绨″柈闆昏矾瑷▓鐨勬噳鐢ㄥ牬鏅�銆傚叾鍏稿瀷鎳夌敤鍖呮嫭渚挎敎寮忛浕瀛愯ō鍌�銆佸祵鍏ュ紡绯荤当(t菕ng)浠ュ強鍚勭ó宸ユキ(y猫)鎺у埗瑷倷銆�
杓稿叆闆诲鑼冨湇锛�10V~40V
銆�銆�杓稿嚭闆诲锛�3.3V
銆�銆�杓稿嚭闆绘祦锛氭渶澶�700mA
銆�銆�闁嬮棞闋荤巼锛�52kHz
銆�銆�灏佽褰㈠紡锛歍O-263
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40鈩儈125鈩�
銆�銆�绶氭�ц鏁寸巼锛毬�0.8%
銆�銆�璨犺級瑾挎暣鐜囷細卤4%
銆�銆�绱嬫尝闆诲锛氣墹40mV
LM2575S-3.3鐨勪富瑕佺壒鎬у涓嬶細
銆�銆�1. 鍏х疆鍔熺巼闁嬮棞绠�锛岀劇闇�澶栨帴MOSFET锛岀啊鍖栬ō瑷堝苟娓涘皯鍏冧欢鏁�(sh霉)閲�銆�
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銆�銆�3. 杓稿嚭闆诲鍥哄畾鐐�3.3V锛岄仼鍚堢偤澶氱ó鏁�(sh霉)瀛楅浕璺緵闆�銆�
銆�銆�4. 鍏锋湁鐔遍棞鏂蜂繚璀峰拰闄愭祦淇濊鍔熻兘锛屾彁楂樼郴绲�(t菕ng)鐨勫彲闈犳��銆�
銆�銆�5. 绌�(w臎n)瀹氱殑鎬ц兘鍜岃純灏忕殑澶栭儴鍏冧欢闇�姹�锛屼娇瀹冩垚鐐轰綆鎴愭湰闆绘簮瑙ｆ焙鏂规鐨勭悊鎯抽伕鎿囥��
銆�銆�6. 鏀寔瀵寖鍦嶇殑杓稿叆闆诲锛岄仼鎳変笉鍚岀殑鎳夌敤鍫存櫙銆�
銆�銆�7. 灏佽绶婃箠锛屾槗浜庣剨鎺ュ拰瀹夎銆�
LM2575S-3.3寤ｆ硾鎳夌敤浜庝互涓嬮牁鍩燂細
銆�銆�1. 宓屽叆寮忕郴绲�(t菕ng)涓殑闆绘簮妯″銆�
銆�銆�2. 宸ユキ(y猫)鑷嫊鍖栬ō鍌欎腑鐨勮紨鍔╅浕婧愩��
銆�銆�3. 娑堣不椤為浕瀛愮敘(ch菐n)鍝佸鎵嬫寔瑷倷銆佷究鏀滃紡闊抽熆绛夈��
銆�銆�4. 鍚勭ó闇�瑕佺┅(w臎n)瀹�3.3V杓稿嚭鐨勫牬鍚�锛屼緥濡傚柈鐗囨銆丗PGA鎴朅RM铏曠悊鍣ㄤ緵闆�銆�
銆�銆�5. 鏁�(sh霉)鎿�(j霉)閫氫俊鎺ュ彛鐨勪緵闆婚浕璺�銆�
銆�銆�6. LED椹呭嫊闆绘簮浠ュ強鍏朵粬浣庡渚涢浕闇�姹傜殑瑷倷銆�
LM2575-3.3, LM2576-3.3, MP1584EN-3.3
