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| ST 78L18 3-Terminal positive voltage regulator 18V * Suitable for TTL, DTL, HTL, C-MOS, Power Supply * Internal Short-Circuit Current Limiting * Internal Thermal Overload Protection * Maximum Output Current of 150mA (Tj=25oC) *Available in the Plastic TO-92 Package TO-92 Plastic Package Weight approx. 0.19g Absolute Maximum Ratings (Ta = 25 oC) Symbol Rating 40 800 -30~75 -55~150 Unit V mW C C Input Voltage Power Dissipation Operating Temperature Storage Temperature Range VIN Ptot Topr Ts SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) (R) Dated : 06/08/2003 ST 78L18 Electrical Characteristics (Unless otherwise specified, VIN=27V, IOUT=40mA, CIN=0.33F, COUT=0.1F, Tj=25C) Symbol Output Voltage Input Regulation Load Regulation Output Voltage VOUT Reg. line Reg. load VOUT VOUT Quiescent Current Quiescent Current Change With load VNO RR VIN-VOUT TCVO 1.0mAIOUT40mA Ta=25C, 10Hzf100KHz Ripple Rejection Dropout Voltage Average Temperature Coefficient of Output Voltage f=120Hz, 23VVIN33V,Tj=25C Tj=25C IOUT=5mA 1.7 -1.5 V mV/C 32 38 dB 150 0.1 V Output Noise Voltage With line IB IB 22VVIN33V 21.4VVIN33V 22VVIN33V 1.0mAIOUT100mA 1.0mAIOUT40mA 21.4VVIN33V 1.0mAIOUT40mA VIN=27V 1.0mAIOUT70mA 3.3 6.5 1.5 mA mA 17.1 18.9 V Test Condition Min. 17.3 17.1 Typ. 18 32 27 30 15 Max. 18.7 325 275 170 75 18.9 V mV Unit V mV SEMTECH ELECTRONICS LTD. (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) (R) Dated : 06/08/2003 |
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