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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DA9021 датащи(PDF) 33 Page - Dialog Semiconductor |
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DA9021 датащи(HTML) 33 Page - Dialog Semiconductor |
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33 / 142 page  DA9021/22 System PMIC with high efficiency USB power manager Datasheet Revision 2.5 17-Feb-2017 CFR0011-120-00 Rev 5 33 of 142 © 2017 Dialog Semiconductor Parameter Symbol Conditions Min Typ Max Unit Line regulation transient VTRLINE VDD = 3.0 V to 3.6 V IOUT = 500 mA tr=tf=10 µs 3 8 mV Output current IMAX During DVC transitions Between DVC transitions 700 800 Note 2 mA Current limit (programmable) ILIM BUCKPRO_ILIM=00 -20 % 700 20 % mA BUCKPRO_ILIM=01 -20 % 800 20 % mA BUCKPRO_ILIM=10 -20 % 1000 20 % mA BUCKPRO_ILIM=11 -20 % 1200 20 % mA Quiescent current in OFF mode IQOFF 1 µA Quiescent current in synchronous rectification mode IQON 2.2 mA Switching frequency f 2 MHz Switching duty cycle 10 90 % Turn on time TON 2.2 ms Output pull down resistor @ VOUT = 0.5 V, can be switched off via PRO_PD_DIS 200 Ω Efficiency η IOUT=30 mA to IMAX VDD < 4.2 V 85 % On resistance pMOS RpMOS incl. pin and routing 0.5 Ω On resistance nMOS RnMOS incl. pin and routing 0.3 Ω PFM mode Output voltage VBPRO IOUT < 70 mA 0.5 Note 3 2.075 V Typical mode switching current 40 Note 4 mA Output current IMAX 70 mA Current limit ILIM -20 % 150 +30 % mA Quiescent current in PFM mode IQPFM IOUT = 0 20 35 µA Frequency of operation 0 5 MHz Efficiency η IOUT = 10 mA to 70 mA 80 % Mode transition time 16 18 µs Note 1 Minimum tolerance is +/- 30 mV Note 2 VDD > 3.0 V using Coilcraft LPS3015-222ML Note 3 Max. VDD – 1.0 V Note 4 Minimum tolerance is +/- 35 mV |
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