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ADP1148AR 데이터시트(PDF) 2 Page - Analog Devices |
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ADP1148AR 데이터시트(HTML) 2 Page - Analog Devices |
2 / 16 page –2– REV. A ADP1148, ADP1148-3.3, ADP1148-5–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter Symbol Conditions2 Min Typ Max Units FEEDBACK VOLTAGE ADP1148 Only V10 VIN = 9 V 1.21 1.25 1.29 V FEEDBACK CURRENT ADP1148 Only I10 0.2 1.0 µA REGULATED OUTPUT VOLTAGE VOUT VIN = 9 V ADP1148-3.3 ILOAD = 700 mA 3.23 3.33 3.43 V ADP1148-5 ILOAD = 700 mA 4.9 5.05 5.2 V OUTPUT VOLTAGE LINE TA = +25 °C, V IN = 7 V to 12 V, REGULATION dVOUT ILOAD = 50 mA –40 +40 mV OUTPUT VOLTAGE LOAD REGULATION dVOUT ADP1148-3.3 5 mA < ILOAD < 2 A 40 65 mV ADP1148-5 5 mA < ILOAD < 2 A 60 100 mV SLEEP MODE OUTPUT RIPPLE dVOUT ILOAD = 0 A 50 mV p-p INPUT DC SUPPLY CURRENT3 IQ TA = +25 °C Normal Mode VIN = 4 V < VIN < 18 V 1.6 2.3 mA Sleep Mode (ADP1148-3.3) VIN = 4 V < VIN < 18 V 160 250 µA Sleep Mode (ADP1148-5) VIN = 4 V < VIN < 18 V 160 250 µA Shutdown VSHUTDOWN = 2.1 V, 10 20 µA 4 V < VIN < 15 V CURRENT SENSE THRESHOLD V8–V7 V9 = VOUT/4 + 25 mV (Forced), VOLTAGE 4 V7 = 5 V, TA = +25 °C25 mV ADP1148 Only V9 = VOUT/4 mV – 25 mV (Forced), V7 = 5 V 130 150 170 mV ADP1148-3.3 V7 = VOUT + 100 mV (Forced) 25 mV V7 = VOUT – 100 mV (Forced) 130 150 170 mV ADP1148-5 V7 = VOUT + 100 mV (Forced 25 mV V7 = VOUT – 100 mV (Forced) 130 150 170 mV SHUTDOWN PIN THRESHOLD ADP1148-3.3, ADP1148-5 V10 TA = +25 °C 0.6 0.8 2.0 V SHUTDOWN PIN INPUT CURRENT I10 0 V < VSHUTDOWN < 8 V, VIN = 18 V 1.2 5 µA CT PIN DISCHARGE CURRENT I4 TA = +25 °C, V OUT in Regulation, V7 = VOUT, 506590 µA VOUT = 0 V 2 10 µA OFF-TIME tOFF CT = 390 pF, ILOAD = 700 mA 4 5 6 µs DRIVER OUTPUT TRANSITION tR, tF CL = 3000 pF (Pins 1, 14) TIMES VIN = 6 V, TA = +25°C 100 200 ns NOTES 1All limits at temperature extremes are guaranteed via correlation using standard Quality Control methods. Specifications subject to change without notice. 2T J is calculated from the ambient temperature T A and power dissipation PD according to the following formulas: ADP1148AR, ADP1148AR-3.3, ADP1148AR-5: TJ = TA + (PD × 110°C/W) ADP1148AN, ADP1148AN-3.3, ADP1148AN-5: TJ = TA + (PD × 70°C/W) 3Dynamic supply current is higher due to the gate charge being delivered at the switching frequency. The allowable operating frequency may be limited by power dissipation at high input voltages. 4The ADP1148 version is tested with external feedback resistors, setting the nominal output voltage to 3.3 V. Specifications subject to change without notice. (0 C ≤ T A ≤ +70 C,1 V IN = 10 V, VSHUTDOWN = 0 V, unless otherwise noted. See Figure 17.) |
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