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STPMIC1 数据表(PDF) 11 Page - STMicroelectronics |
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STPMIC1 数据表(HTML) 11 Page - STMicroelectronics |
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11 / 140 page  Symbol Parameter Test conditions Min. Typ. Max. Unit VLDO3IN Main input voltage range 2.8 5.5 V VLDO3OUT Output voltage VLDO3IN >VLDO3OUT+VLDO3DROP programmable value. Refer to Table 9. LDO output voltage settings 1.8 to 3.3 V Voltage programming step 100 mV VLDO3OUT-ACC Output voltage accuracy VLDO3IN >VLDO3OUT+VLDO3DROP 1 mA<ILDO3OUT<50 mA -2 2 % ILDO3OUT Continuous output current VLDO3IN = 2.8 V to 5.5 V 100 mA ILDO3LIM Load current limitation VLDO3IN = 2.8 V to 5.5 V 120 150 mA IQLDO3 Total quiescent current ILDO3OUT = 0 mA, TJ = +105 °C total current from all LDO supply pins (VIN, LDOIN, BUCK2IN) 20 µA ILDO3IN_LKG Input leakage current LDO OFF 1 3 µA VLDO3DROP Dropout voltage VLDO3OUT = 2.8 V, ILDO3OUT = 100 mA 120 200 mV VLDO3OUT-LO Load transient regulation ΔILDO3OUT = 5 mA to 55 mA, ΔVLDO3IN = 0, tR = tF ~10 µs 30 mV VLDO3OUT-LI Line transient regulation VLDOIN = 3.6 V to 3.0 V, ΔILDO3OUT = 0, tR = tF ~10 µs 5 mV PSRRLDO3 Power supply rejection ratio ΔVLDO3IN = 300 mVPP, f=[0.1:20] kHz 45 dB ΔVLDO3IN = 300 mVPP, f=[20:100] kHz 40 tSSLDO3 Soft-start duration 2.8 V<VLDO3IN<5.5 V, 0<ILDO3OUT<1 mA 200 µs tSDLDO3 Shutdown duration (all modes) Pull-down enabled, VLDO3OUT=1.8 V to VLDO3OUT = 0.2 V, ILDO3OUT = no load, VIN=3.6 V, COUT=4.7 µF 3 ms LDO3 sink-source mode VLDO3IN = VOUT2 = 1.35 V, VIN = 5.0 V, VBUCK2IN = 5.0 V, VLDO3OUT = VREFDDR = VOUT2/2, Tj = -40 °C to +125 °C, recommended BOM, unless otherwise specified VLDO3IN-SS Input voltage range 1.1 1.35 1.6 V ILDO3OUT-SS Continuous output current 120 mARMS ILDO3LIM-SS Overcurrent limit ±200 mA IQLDO3_SS Total quiescent current ILDO3OUT = 0 mA, TJ = +105 °C total current from all LDO supply pins (VIN, LDOIN, BUCK2IN) 2 20 µA VLDO3OUT-LO-SS Load transient regulation ΔILDO3OUT = +/- [0:50] mA, ΔVLDO3IN = 0, tR = tF ~250 ns 30 mV VLDO3OUT-LI-SS Line transient regulation VLDO3IN = VOUT2 = 1.35 V, ΔILDO3OUT = 0, tR = tF ~1 μs 5 mV tSSLDO3-SS Soft-start duration 2.8 V <VLDO3IN <5.5 V, 0< ILDO3OUT < 1 mA 21 40 µs tSDLDO3-SS Shutdown duration Pull-down enabled, VLDO3OUT= VOUT2/2 to VLDO3OUT < 0.2 V, ILDO3OUT = no load, VIN = VOUT2, COUT=4.7 µF 3 ms LDO3 bypass mode VLDO3IN = 1.8 V, VLDO3OUT = ~1.8 V, Tj = -40 °C to +125 °C, recommended BOM, unless otherwise specified STPMIC1 Electrical and timing parameters DS12792 - Rev 7 page 11/140 |
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