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ADP5050ACPZ-R7 데이터시트(PDF) 8 Page - Analog Devices |
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ADP5050ACPZ-R7 데이터시트(HTML) 8 Page - Analog Devices |
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8 / 60 page ![]() ADP5050 Data Sheet Rev. 0 | Page 8 of 60 Parameter Symbol Min Typ Max Unit Test Conditions/Comments CHANNEL 4 SYNC BUCK REGULATOR FB4 Pin Fixed Output Options VOUT4 2.5 5.5 V Fuse trim or I2C interface (5-bit value) Adjustable Feedback Voltage VFB4 0.800 V Feedback Voltage Accuracy VFB4(DEFAULT) −0.55 +0.55 % TJ = 25°C −1.25 +1.0 % 0°C ≤ TJ ≤ 85°C −1.5 +1.5 % −40°C ≤ TJ ≤ +125°C Feedback Bias Current IFB4 0.1 µA SW4 Pin High-Side Power FET On Resistance RDSON(4H) 225 mΩ Pin-to-pin measurement Low-Side Power FET On Resistance RDSON(4L) 150 mΩ Pin-to-pin measurement Current-Limit Threshold ITH(ILIM4) 1.7 2.2 2.55 A Minimum On Time tMIN_ON4 90 120 ns fSW = 250 kHz to 1.4 MHz Minimum Off Time tMIN_OFF4 1/9 × tSW ns fSW = 250 kHz to 1.4 MHz Error Amplifier (EA), COMP4 Pin EA Transconductance gm4 310 470 620 µS Soft Start Soft Start Time tSS4 2.0 ms SS34 connected to VREG Programmable Soft Start Range 2.0 8.0 ms Hiccup Time tHICCUP4 7 × tSS4 ms COUT Discharge Switch On Resistance RDIS4 250 Ω LDO REGULATOR SPECIFICATIONS VIN5 = (VOUT5 + 0.5 V) or 1.7 V (whichever is greater) to 5.5 V; CIN = COUT = 1 µF; TJ = −40°C to +125°C for minimum and maximum specifications, and TA = 25°C for typical specifications, unless otherwise noted. Table 3. Parameter Min Typ Max Unit Test Conditions/Comments INPUT SUPPLY VOLTAGE RANGE 1.7 5.5 V PVIN5 pin OPERATIONAL SUPPLY CURRENT Bias Current for LDO Regulator 30 130 µA IOUT5 = 200 µA 60 170 µA IOUT5 = 10 mA 145 320 µA IOUT5 = 200 mA VOLTAGE FEEDBACK (FB5 PIN) Adjustable Feedback Voltage 0.500 V Feedback Voltage Accuracy −1.0 +1.0 % TJ = 25°C −1.6 +1.6 % 0°C ≤ TJ ≤ 85°C −2.0 +2.0 % −40°C ≤ TJ ≤ +125°C DROPOUT VOLTAGE IOUT5 = 200 mA 80 mV VOUT5 = 3.3 V 100 mV VOUT5 = 2.5 V 180 mV VOUT5 = 1.5 V CURRENT-LIMIT THRESHOLD 250 510 mA Specified from the output voltage drop to 90% of the specified typical value OUTPUT NOISE 92 µV rms 10 Hz to 100 kHz, VPVIN5 = 5 V, VOUT5 = 1.8 V POWER SUPPLY REJECTION RATIO VPVIN5 = 5 V, VOUT5 = 1.8 V, IOUT5 = 1 mA 77 dB 10 kHz 66 dB 100 kHz |
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