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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MAX20303 датащи(PDF) 21 Page - Maxim Integrated Products |
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MAX20303 датащи(HTML) 21 Page - Maxim Integrated Products |
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21 / 152 page  (VBAT = +3.7V, TA = -20°C to +70°C, unless otherwise noted. Typical values are at TA = +25°C. CSFOUT = 1µF, CVDIG = 1µF, CCAP = 1µF, CSYS = 10µF, CBK1OUT_EFF = 10µF, CBK2OUT_EFF = 10µF, CL1IN = 1µF, CL2IN = 1µF, CL1OUT = 1µF, CL2OUT = 1µF, CCPP = 27nF, CBSTOUT_EFF = 10µF, CBBOUT_EFF = 10µF, LBK1 = 2.2µH, LBK2 = 2.2µH, LBSTOUT = 4.7µH, LBBOUT = 4.7µH). (Note 1) Electrical Characteristics (continued) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS BUCK1 Input Voltage Range VBK1IN Input voltage = VSYS 2.7 5.5 V Output Voltage Range VBK1OUT 25mV step resolution 0.8 2.375 V Output Voltage UVLO VUVLO_BK1 0.65 V Quiescent Supply Current IQ_BK1 IBK1OUT = 0, VSYS = +3.7V, VBK1OUT = +1.2V 0.8 1.3 µA Dropout Quiescent Supply Current IQ_DO_BK1 IBK1OUT = 0, VSYS – VBK1OUT ≤ +0.1V 250 µA Shutdown Supply Current with Active Discharge Enabled ISD_BK1 Buck 1 disabled, Buck1ActDsc = 1 60 µA Output Average Voltage Accuracy ACC_BK1 IBK1OUT = 1mA -3.2 +2.9 % Peak-to-Peak Ripple VRPP_BK1 Buck1ISet = 0100 (100mA), CBK1OUT_EFF = 2.2µF, IBK1OUT = 1mA 10 mV Peak Current Set Range IPSET_BK1 25mA step resolution. The accuracy of codes below 50mA is limited by tON_MIN_BK1 0 375 mA Load Regulation Error VLOAD_REG_ BK1 Buck1ISet = 0110 (150mA), Buck1IAdptEn = 1, IBK1OUT = 300mA -3 % Line Regulation Error VLINE_REG_ BK1 VBK1OUT = +1.2V, VSYS from +2.7V to +5.5V 2 mV Maximum Operative Output Current IBK1_MAX VSYS = +3.7V, Buck1VSet = 0x10 (+1.2V), Buck1ISet = 1000 (200mA), Buck1IAdptEn = 1, load regulation error = -5% 220 mA BK1OUT Pulldown Current IPD_BK1_E Buck 1 Enabled 100 200 nA BK1OUT Pulldown Resistance with Buck Disabled IPD_BK1_D Buck 1 Disabled, VSYS = +3.6V, Buck1VSet = 0x10 (+1.2V) 12 MΩ PMOS On-Resistance RP_ON_BK1 Buck1FETScale = 0 0.35 0.49 Ω RP_ON_BK1_FS Buck1FETScale = 1 0.7 0.98 NMOS On-Resistance RN_ON_BK1 Buck1FETScale = 0 0.25 0.4 Ω RN_ON_BK1_FS Buck1FETScale = 1 0.5 0.7 Freewheeling On- Resistance RON_BK1_ FRWHL VSYS = +3.7V, Buck1VSet = 0x10 (+1.2V) 7 12 Ω MAX20303 Wearable Power Management Solution www.maximintegrated.com Maxim Integrated │ 21 |
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