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STW4510 データシート(PDF) 37 Page - STMicroelectronics |
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STW4510 データシート(HTML) 37 Page - STMicroelectronics |
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37 / 57 page ![]() Obsolete Product(s) - Obsolete Product(s) STw4510 Electrical and timing characteristics 37/57 4.2.3 Vsdc1 DC/DC step-down converter Table 18. Vsdc1 DC/DC step-down converter Symbol Description Test conditions Min. Typ. Max. Units Vsdc1 regulator in high power mode VBAT Input power supply 2.7 3.6 5.5 V VOUT Programmable output voltage Vsdc1_sel[1:0] = 00 * vsdc1_prg[3:0] 1111 1110 1101 1100 1011 1010 1001 1000 0111 0110 0101 0100 (default) 0011 0010 0001 0000 -5% -5% -5% 1.50 1.40 1.38 1.36 1.34 1.32 1.30 1.28 1.26 1.24 1.22 1.20 1.15 1.10 1.05 1.00 +5% +5% + 5% V VRIPPLE Output voltage ripple Vsdc1 = 1.2 V IOUT = 200 mA 10 mVpp IOUT Output current 600 mA PEFF Power efficiency Vsdc1 = 1.2 V IOUT = 200 mA 86 % ISHORT (1) Short circuit current limitation 0.9 1.2 1.4 A I(2)Q Quiescent current IOUT = 0 mA 5 µA ILKG Power-down current en_vsdc1 = 0 1.5 µA PSRR(1) Power supply rejection Vsdc1 = 1.2 V IOUT = 200 mA Vpp = 0.3 V, F: [0; 20] kHz 40 dB SR Rising slope IOUT = 10 mA 0.55 ms/V Lir Line regulation VBAT: [2.7; 5.5] V 10 mV Ldr Load regulation IOUT: [0.1; 600] mA 10 mV |
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