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ST1S15J18R Datasheet(PDF) 8 Page - STMicroelectronics |
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ST1S15J18R Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 27 page Electrical characteristics ST1S15 8/27 DocID023280 Rev 4 4 Electrical characteristics - 40 °C < TA < 85 °C, CIN = 4.7 µF nominal, COUT = 4.7 µF nominal, L = 470 nH, typical values are at TA = 25 °C, VEN = VIN unless otherwise specified. Table 7: Electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit General section VIN Operating input voltage range 2.3 5.5 V VUVLO Undervoltage lockout threshold VIN rising 2.1 2.2 V VIN falling 1.8 1.9 IQ PFM mode quiescent current No load 45 60 µA PWM mode quiescent current No load 15 mA Shutdown current VEN = 0 0.5 5 µA fSW Switching frequency 5.4 6 6.6 MHz IOUT Continuous output current (1) VIN ≥ VOUT + 0.40 V 500 mA ISC Short-circuit current (2) 1200 mA IPFM-PWM PFM to PWM transition VIN = 3.6 V, VOUT = 1.82 V 200 mA PWM to PFM transition 100 h Efficiency (VIN = 3.6 V, VOUT = 1.82 V) IOUT = 10 mA PFM mode 80 % IOUT = 150 mA 83 tON Start-up time VEN from low to high, VIN = 3.6 V, VOUT = 1.82 V 260 µs TSHDN Thermal shutdown 125 °C Hysteresis 30 °C Output voltage VOUT Accuracy (ST1S15J18) 2.3 ≤ VIN ≤ 5.5 V, IOUT= 10 mA, PWM mode, - 40 ≤ TA ≤ 85 °C 1.78 1.82 1.86 V 2.3 ≤ VIN ≤ 5.5 V, IOUT= 10 mA, PFM mode, - 40 ≤ TA ≤ 85 °C 1.78 1.82 1.86 Load regulation 2.3 ≤ VIN ≤ 5.5 V, VOUT=1.82 V, IOUT = 0 to 500 mA, PWM mode, - 40 ≤ TA ≤ 85 °C -1.5 % VOUT_Ripple Peak-to-peak output voltage ripple PWM mode, IOUT = 150 mA, VIN = 3.6 V, VOUT = 1.82 V 10 mV PFM mode, IOUT = 150 mA, VIN = 3.6 V, VOUT = 1.82 V 30 mV ILKFB FB pin leakage current VFB = 5.5 V 9 µA |
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