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SC900A Fiches technique(PDF) 5 Page - Semtech Corporation |
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SC900A Fiches technique(HTML) 5 Page - Semtech Corporation |
5 / 23 page 5 © 2005 Semtech Corp. www.semtech.com POWER MANAGEMENT SC900A Electrical Characteristics (Cont.) Parameter Symbol Conditions Min Typ Max Units LDO Regulator D (Cont.) Maximum Output Current IOMAX D 150 mA Default Setting: OFF VO D 3.10 V Line Regulation at 3.10V LINEREG D I OUT = 1mA, VOUT + 0.15V < VIN < 5.5V 2.5 12 mV Load Regulation at 3.10V LOADREG D 1mA < I OUT <150mA -3 -20 mV Dropout Voltage V DD V OUT = 3.3V, IOUT = 150mA 150 190 mV Power Supply Rejection Ratio PSRR D f = 10Hz - 1kHz, C BYP = 0.1mF, I OUT = 50mA, 2.5V ≤ V OUT ≤ 3.3V 60 dB Output Voltage Noise(2) e n-D f = 10Hz - 100kHz, I OUT = 50mA, C VREF = 0.1μF, COUT = 2.2μF, 2.5V ≤ V OUT ≤ 3.3V 55 μV RMS LDO Regulator E Output Voltage Accuracy VOA E 1.75V ≤ V OUT ≤ 3.30V V OUT + 0.15V ≤ VIN ≤ 5.5V I OUT = 1mA, TA = 25°C -3 +3 % Output Voltage Accuracy at 3.10V (DAC = 10111) VOAS E I OUT = 1mA -2 +2 % V OUT + 0.5V ≤ VIN ≤ 5.5V, I OUT = 150mA -3.5 +3.5 % Maximum Output Current IOMAX E 150 mA Default Setting: OFF VO E 3.10 V Line Regulation at 3.10V LINEREG E I OUT = 1mA, VOUT + 0.15V < VIN < 5.5V 2.5 12 mV Load Regulation at 3.10V LOADREG E 1mA < I OUT = 150mA -3 -20 mV Dropout Voltage V DE V OUT = 3.3V, IOUT = 150mA 150 190 mV Power Supply Rejection Ratio PSRR E f = 10Hz - 1kHz, C BYP = 0.1μF, I OUT = 50mA, 2.5V ≤ V OUT ≤ 3.3V 60 dB Output Voltage Noise(2) e n-E f = 10Hz - 100kHz, I OUT = 50mA, C VREF = 0.1μF, COUT = 2.2μF, 2.5V ≤ V OUT ≤ 3.3V 55 μV RMS A RESET Reset Threshold RESET THLD 77 % Reset Active Timeout Delay t RD Delay in default state 75 100 125 ms LDO POWER GOOD PGOOD Threshold PGOOD THLD 77 % PGOOD Active Timeout Delay t PG Delay in default state 75 100 125 ms Notes: 1) Digital outputs are powered from LDOB, so LDOB must be active for operation of LDOPGD and ARST. 2) Below 2.5V: becomes digital regulator. |
Numéro de pièce similaire - SC900A |
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Description similaire - SC900A |
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