鏅傞枔锛�2025/4/30 16:07:01
闁辫畝锛�29
L71121C-3.3鏄竴娆剧敱STMicroelectronics锛堟剰娉曞崐灏庨珨锛夌敓鐢�(ch菐n)鐨勭窔鎬х┅(w臎n)澹撳櫒锛圠DO锛夈�傝┎鑺墖灏堢偤闇�瑕侀珮绮惧害杓稿嚭闆诲鍜屼綆鍔熻�楃殑鎳夌敤鑰岃ō瑷�锛屽吀鍨嬭几鍑洪浕澹撶偤3.3V銆傚畠閲囩敤鍏堥�茬殑CMOS鎶�琛撳埗閫�锛屽叿鏈夊嚭鑹茬殑闆绘簮鎶戝埗姣旓紙PSRR锛夊拰浣庨潨鎱�(t脿i)闆绘祦鐗规�э紝闈炲父閬╁悎渚挎敎寮忚ō鍌�銆侀浕姹犱緵闆荤郴绲�(t菕ng)浠ュ強灏嶅櫔鑱叉晱鎰熺殑闆昏矾銆�
銆�銆�瑭插櫒浠惰兘澶犲湪杓冨鐨勮几鍏ラ浕澹撹寖鍦嶅収(n猫i)宸ヤ綔锛屽苟鎻愪緵绌�(w臎n)瀹氱殑杓稿嚭闆诲锛屽悓鏅傚叿鍌欓亷娴佷繚璀峰拰閬庢韩淇濊鍔熻兘锛岀⒑淇濆叾鍦ㄥ悇绋浠朵笅鐨勫畨鍏ㄩ亱琛�銆�
杓稿叆闆诲鑼冨湇锛�2.3V 鑷� 5.5V
銆�銆�杓稿嚭闆诲锛�3.3V锛堝浐瀹氾級
銆�銆�杓稿嚭闆绘祦锛氭渶澶�250mA
銆�銆�闈滄厠(t脿i)闆绘祦锛�60uA锛堝吀鍨嬪�硷級
銆�銆� dropout闆诲锛�300mV锛堟渶澶у�硷紝鍦↖out=100mA鏅傦級
銆�銆�闆绘簮鎶戝埗姣旓紙PSRR锛夛細60dB锛園1kHz锛�
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +85掳C
銆�銆�灏佽褰㈠紡锛歋OT-23, SOT-89
L71121C-3.3鍏锋湁浠ヤ笅椤憲鐗归粸锛�
銆�銆�1. 楂樼簿搴﹁几鍑洪浕澹擄細杓稿嚭闆诲绮惧害閬斿埌卤2%锛岀⒑淇濅簡鍦ㄥ悇绋矤杓夊拰婧害姊濅欢涓嬬殑绌�(w臎n)瀹氭�с��
銆�銆�2. 浣庨潨鎱�(t脿i)闆绘祦锛氬儏鐐�60uA锛屾湁鍔╀簬寤堕暦闆绘睜澹藉懡锛屽挨鍏堕仼鍚堜綆鍔熻�楁噳鐢�銆�
銆�銆�3. 蹇�熺灛鎱�(t脿i)闊挎噳锛氳兘澶犲揩閫熸噳灏嶈矤杓夐浕娴佺殑璁婂寲锛屼繚鎸佽几鍑洪浕澹撶┅(w臎n)瀹�銆�
銆�銆�4. 鍏�(n猫i)缃繚璀峰姛鑳斤細鍖呮嫭闄愭祦淇濊鍜岀啽闂滄柗鍔熻兘锛屾彁鍗囦簡绯荤当(t菕ng)鐨勫彲闈犳�у拰瀹夊叏鎬�銆�
銆�銆�5. 灏忓瀷灏佽锛氭敮鎸丼OT-23鍜孲OT-89灏佽锛岀瘈(ji茅)鐪丳CB绌洪枔锛屼究浜庤ō瑷堝竷灞�銆�
銆�銆�6. 瀵几鍏ラ浕澹撹寖鍦嶏細鏀寔寰�2.3V鍒�5.5V鐨勮几鍏ラ浕澹擄紝閬╂噳澶氱ó闆绘簮鍫存櫙銆�
銆�銆�7. 绌�(w臎n)瀹氭�у挤锛氬収(n猫i)缃鍎熼浕璺�锛岀劇闇�澶栭儴鍏冧欢鍗冲彲瀵︾従(xi脿n)绌�(w臎n)瀹氭�с��
L71121C-3.3閬╃敤浜庡绋綆鍔熻�楀拰楂樻�ц兘瑕佹眰鐨勬噳鐢ㄥ牬鏅�锛屽寘鎷細
銆�銆�1. 渚挎敎寮忛浕瀛愯ō鍌欙細濡傜Щ鍕曢浕瑭便�丳DA銆佹暩(sh霉)纰肩浉姗熺瓑銆�
銆�銆�2. 闆绘睜渚涢浕绯荤当(t菕ng)锛氬鐒＄窔鍌虫劅鍣ㄧ恫(w菐ng)绲＄瘈(ji茅)榛�銆佹墜鎸佽ō鍌欑瓑銆�
銆�銆�3. 灏嶅櫔鑱叉晱鎰熺殑闆昏矾锛氬灏勯牷妯″銆侀煶闋绘斁澶у櫒銆佹暩(sh霉)鎿�(j霉)杞夋彌鍣ㄧ瓑銆�
銆�銆�4. 宸ユキ(y猫)鎺у埗锛氱偤寰帶鍒跺櫒鎴栧偝鎰熷櫒鎻愪緵绌�(w臎n)瀹氱殑闆绘簮銆�
銆�銆�5. 娑堣不椤為浕瀛愮敘(ch菐n)鍝侊細濡傞仚鎺у櫒銆佽棈鐗欒ō鍌�銆佹櫤鑳藉灞呯敘(ch菐n)鍝佺瓑銆�
銆�銆�L71121C-3.3鎲戝�熷叾楂樻晥鑳藉拰鍙潬鎬�锛屾垚鐐虹溇澶氫綆鍔熻�楁噳鐢ㄧ殑鐞嗘兂閬告搰銆�
L78L33ABV, LD1117V33, AMS1117-3.3
