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L5970D013TR Datasheet(PDF) 6 Page - STMicroelectronics |
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L5970D013TR Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 10 page L5970D 6/10 Figure 10. Demoboard schematic Part list demoboard Reference Part Number Description Manufacturer C1 10 µF, 25V TOKIN C2 POSCAP 10TPB100M 100 µF, 10V Sanyo C3 C1206C221J5GAC 220pF, 5%, 50V KEMET C4 C1206C223K5RAC 22nF, 10%, 50V KEMET R1 5.6K, 1%, 0.1W 0603 Neohm R2 3.3K, 1%, 0.1W 0603 Neohm R3 4.7K, 1%, 0.1W 0603 Neohm D1 STPS2L25U 2A, 25V STMicroelectronics L1 DO3316P-333 33 µH, 2A COILCRAFT D03IN1437 8 2 4 5 1 7 L5970D C1 10 µF 25V CERAMIC C2 100 µF 10V VOUT=3.3V VIN = 4.4V to 25V R1 5.6K R2 3.3K R3 4.7K C4 22nF C3 220pF 3 6 D1 STPS2L25U 3.3V INH. SYNC. COMP VCC VREF OUT FB GND L1 33 µH Figure 11. Efficiency vs. Output Current Figure 12. Efficiency vs. Output Current 70 72 74 76 78 80 82 84 86 88 90 92 94 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Io (A) Vo=3.3V Vo=2.5V Vo=1.8V Vcc=5V 70 72 74 76 78 80 82 84 86 88 90 92 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Io (A) Vcc=12V Vo=5V Vo=3.3V Vo=2.5V |
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