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STPMIC25BPQR 数据表(PDF) 16 Page - STMicroelectronics |
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STPMIC25BPQR 数据表(HTML) 16 Page - STMicroelectronics |
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16 / 145 page  Symbol Parameter Test conditions Min. Typ. Max. Unit tSDLDO-SS Shutdown duration Pull-down enabled, VLDOOUT = VREFDDR to VLDOOUT = 0.2 V, ILDOOUT = no load 1.5 ms LDO3 bypass mode (lpDDR VDD1 supply) VLDOIN = 1.8 V, VLDOOUT = ~1.8 V, Tj = -40 °C to +125 °C, recommended BOM, unless otherwise specified VLDOIN-BP Input voltage range 1.7 2 V ILDOOUT-BP Continuous output current 1.7 V < VLDOIN < 2 V (no overcurrent protection in bypass mode TBV) 80 mA RDSONLDO-BP Bypass on resistance 1.7 V < VLDOIN < 2 V, ILDOOUT = 40 mA 360 mΩ tSSLDO-BP Soft-start duration 1.7 V < VLDOIN < 2 V, 0 < ILDOOUT < 1 mA COUT = 4.7 µF, 100 µs tSDLDO-BP Shutdown duration Pull-down enabled, VLDOOUT = 1.8 V to VLDOOUT = 0.2 V, ILDOOUT = no load 1.5 ms 3.4.7 LDO4 Table 13. Electrical and timing parameter specifications (LDO4) Symbol Parameter Test conditions Min. Typ. Max. Unit LDO4 VLDOIN Main input voltage range VLDOIN from VIN or VBUS pins 2.8 5.5 V VLDOOUT-ACC Output voltage accuracy VLDOIN = 3.6 V to 5.0 V 100 µA < ILDOOUT < 30 mA 3.23 3.3 3.40 ILDOLIM Output current limitation VLDOIN = 3.6 V to 5.5 V 40 80 mA ILDOQ Quiescent current ILDOOUT = 0 mA 20 25 µA VLDODROP Dropout voltage from VIN pin ILDOOUT = 30 mA 45 90 mV VLDOOUT-LO Load transient regulation ILDOOUT = 1 to 30 mA, tR = tF = 1 µs 40 VLDOOUT-LI Line transient regulation VIN = 3.6 V, VBUS = from 0 V to 5 V (internal mux), ILDOOUT = 10 mA 10 PSRRLDO Power supply rejection ratio ΔVLDOIN = 300 mVPP, f = [0.1:20] kHz, Tj = 25 °C, ILDOOUT = 25 mA 55 dB ΔVLDOIN = 300 mVPP, f = [20:100] kHz, Tj = 25 °C, ILDOOUT = 25 mA 40 tSSLDO Soft-start duration 3.6 V < VLDOIN < 5.5 V, 0 < ILDOOUT < 1 mA, COUT = 4.7 µF 100 µs VLDOOUT-SO Startup overshoot 3.6 V < VLDOIN < 5.5 V, ILDOOUT < 10 µA 1 % tSDLDO Shutdown duration Pull-down enabled, VLDOOUT = 3.3 V to VLDOOUT = 0.2 V, ILDOOUT = no load 1.5 ms STPMIC25 Electrical and timing characteristics DS14278 - Rev 3 page 16/145 |
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