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STPMIC1APQR 数据表(PDF) 10 Page - STMicroelectronics |
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STPMIC1APQR 数据表(HTML) 10 Page - STMicroelectronics |
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10 / 140 page  Symbol Parameter Test conditions Min. Typ. Max. Unit tOCPDB_BUCK BUCK OCP turn- off delay 5 µs tOVPDB_BST BOOST OVP turn-off delay 1 ms tOCPDB_BST BOOST OCP turn-off delay 2 µs tOCPDB_SW Switches OCP turn-off delay 30 ms tWD Watchdog timer Programmable value, defined in register Table 34. WDG_CR 1 to 256 s Timer programming step 1 NVMEND NVM write cycles endurance 1000 Cycle LDO1, LDO2, LDO5 VLDOIN = 3.6 V, VIN = 3.6 V, VBUCK2IN = 3.6 V, VLDOOUT = 1.8 V, recommended BOM, Tj = -40 °C to +125 °C, unless otherwise specified,VBUCK1IN and VBUCK2IN must always be connected to VIN VLDOIN Main input voltage range 2.8 5.5 V VLDOOUT Output voltage VLDOIN >VLDOOUT+VLDODROP Programmable value. Refer to Table 9. LDO output voltage settings LDO1 LDO2 1.7 to 3.3 V LDO5 1.7 to 3.9 V Voltage programming step 100 mV VLDOOUT-ACC Output voltage accuracy VLDOIN >VLDOOUT+VLDODROP 1 mA<ILDOOUT<350 mA -2 2 % I LDOOUT Continuous output current VLDOIN = 2.8 V to 5.5 V 350 mA ILDOLIM Load current limitation VLDOIN = 2.8 V to 5.5 V 360 450 800 mA ILDOQ Total quiescent current ILDOOUT = 0 mA, TJ = +105 °C total current from all LDO supply pins (VIN, LDOIN, BUCK2IN) 4 20 µA ILDOIN_LKG Input leakage current LDO OFF 0.5 2.5 µA VLDODROP Dropout voltage (1) VLDOOUT = 2.8 V, ILDOOUT = 350 mA 180 300 mV VLDOOUT-LO Load transient regulation ILDOOUT = 5 to 180 mA, ΔVLDOIN = 0, tR = tF ~1 µs 45 mV VLDOOUT-LI Line transient regulation VLDOIN = 3.6 V to 3.0 V, ΔILDO1OUT = 0, tR = tF ~10 μs 10 mV PSRRLDO Power supply rejection ratio ΔVLDOIN = 300 mVPP, f=[0.1:20] kHz 43 dB ΔVLDOIN = 300 mVPP, f=[20:100] kHz 37 tSSLDO Soft-start duration 2.8 V<VLDOIN<5.5 V, 0<ILDOOUT<1 mA COUT=4.7 µF 160 µs tSDLDO Shutdown duration Pull-down enabled, VLDOOUT=1.8 V to VLDOOUT=0.2 V, ILDOOUT= no load 3 ms LDO3 normal mode VLDO3IN = 3.6 V, VIN = 3.6 V, VBUCK2IN = 3.6 V, VLDO3OUT = 1.8 V, recommended BOM, Tj = -40 °C to +12 5 °C, unless otherwise specified STPMIC1 Electrical and timing parameters DS12792 - Rev 7 page 10/140 |
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