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ADP3050AR-5 Arkusz danych(PDF) 2 Page - Analog Devices |
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ADP3050AR-5 Arkusz danych(HTML) 2 Page - Analog Devices |
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2 / 16 page  –2– REV. 0 ADP3050–SPECIFICATIONS (V IN = 10 V, TA = –40 C to +85 C, unless otherwise noted) 1 Parameter Symbol Conditions Min Typ Max Unit FEEDBACK Feedback Voltage VFB Over Line and Temperature ADP3050 1.16 1.20 1.24 V ADP3050-3.3 3.20 3.30 3.40 V ADP3050-5 4.85 5.00 5.15 V Line Regulation VIN = 10 V to 30 V, no load 0.005 %/V Load Regulation ILOAD = 100 mA to 1 A, ADP3050AR Only –1.0 +0.1 +1.0 %/A ADP3050AR-3.3, ADP3050AR-5 –0.5 +0.1 +0.5 %/A Input Bias Current IFB ADP3050AR Only 0.65 2 µA ERROR AMPLIFIER Transconductance2 gm 1250 µMho Voltage Gain 2 AVOL 300 V/V Output Current ADP3050 COMP = 1.0 V, FB = 1.1 V to 1.3 V ±115 µA ADP3050-3.3 COMP = 1.0 V, FB = 3.0 V to 3.6 V ±120 µA ADP3050-5 COMP = 1.0 V, FB = 4.5 V to 5.5 V ±135 µA OSCILLATOR Oscillator Frequency 3 fOSC 170 200 240 kHz Minimum Duty Cycle DMIN 10 % Maximum Duty Cycle DMAX 90 % SWITCH Average Output Current Limit 4 ICL(AVG) ADP3050 BOOST = 15 V, FB = 1.1 V 1.0 1.25 1.5 A ADP3050-3.3 BOOST = 15 V, FB = 3.0 V 1.0 1.25 1.5 A ADP3050-5 BOOST = 15 V, FB = 4.5 V 1.0 1.25 1.5 A Peak Switch Current Limit 5 ICL(PEAK) 1.5 1.7 2.1 A Saturation Voltage BOOST = 15 V, ILOAD = 1 A 0.65 0.95 V Leakage Current 50 nA SHUTDOWN Input Voltage Low 0.4 V Input Voltage High 2.0 V SUPPLY Minimum Input Voltage 6 VIN 3.6 V Minimum BIAS Voltage VBIAS 3.0 V Minimum BOOST Voltage VBOOST 3.0 V IN Supply Current IQ Normal Mode BIAS = 5.0 V 0.7 1.5 mA Shutdown Mode SD = 0 V, V IN ≤ 30 V 15 40 µA BIAS Supply Current IBIAS BIAS = 5.0 V 4.0 6.0 mA BOOST Supply Current IBOOST BOOST = 15 V, ISW = 0.5 A 18 mA BOOST = 15 V, ISW = 1.0 A 20 40 mA NOTES 1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC). 2Transconductance and voltage gain measurements refer to the internal amplifier without the voltage divider. To calculate the transconductance and gain of the fixed voltage parts, divide the values shown by FB/1.20. 3The switching frequency is reduced when the feedback pin is lower than 0.8 FB. 4See Figure 22 for test circuit. 5Switch current limit is measured with no diode, no inductor, and no output capacitor. 6Minimum input voltage is not measured directly, but is guaranteed by other tests. The actual minimum input voltage needed to keep the output in regulation will depend on output voltage and load current. Specifications subject to change without notice. |
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