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LM317LDR2G Scheda tecnica(PDF) 5 Page - ON Semiconductor |
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LM317LDR2G Scheda tecnica(HTML) 5 Page - ON Semiconductor |
5 / 12 page LM317L http://onsemi.com 5 *Pulse Testing Required: 1% Duty Cycle is suggested. Line Regulation (%/V) = VOH − VOL x 100 * VCC VIH VIL Vin Vout VOH VOL RL + 1 mF CO 240 1% R1 Adjust R2 1 % Cin 0.1 mF LM317L IAdj Figure 1. Line Regulation and DIAdj/Line Test Circuit VOL *Pulse Testing Required: 1% Duty Cycle is suggested. Load Regulation (mV) = VO (min Load) −VO (max Load) Load Regulation (% VO) = VO (min Load) − VO (max Load) X 100 VO (min Load) VO (max Load) LM317L Cin 0.1 mF Adjust R2 1% CO 1.0 mF + * RL (max Load) RL (min Load) Vout R1 240 1% Vin*Vin IAdj IL Figure 2. Load Regulation and DIAdj/Load Test Circuit VO (min Load) Pulse Testing Required: 1% Duty Cycle is suggested. LM317L Vin Vout Adjust R1 240 1% + 1 mF CO RL Cin R2 1% To Calculate R2: Vout = ISET R2 + 1.250 V Assume ISET = 5.25 mA IL IAdj ISET Vref VO VI 0.1 mF Figure 3. Standard Test Circuit |
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