ADP222 Analog Devices, ADP222 Datasheet
ADP222
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ADP222 Summary of contents
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... V, 50 µV rms at V OUT Excellent transient response Low dropout voltage: 170 mV at 300 mA load 65 µA typical ground current at no load, both LDOs enabled Fixed output voltage from 0 3.3 V (ADP222/ADP224) Adjustable output voltage range from 0 5.0 V (ADP223/ADP225) Quick output discharge (QOD)—ADP224/ADP225 ...
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... Current Limit and Thermal Overload Protection ................. 20 Thermal Considerations ............................................................ 20 Printed Circuit Board Layout Considerations........................ 22 Outline Dimensions ....................................................................... 23 Ordering Guide .......................................................................... 23 7/11—Rev Rev. A Added ADP222, ADP224, and ADP225 ......................... Universal Changes to Features Section, Applications Section, General Description Section, and Figure 2 .................................... 1 Changes to Table 1 ............................................................................. 3 Added Figure 4; Renumbered Sequentially ................................... 6 Changes to Table 5 ............................................................................. 6 Changes to Typical Performance Characteristics Section ...
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... IN 2.5 V ≤ V ≤ 5 EN1 = EN2 = V or GND I-LEAKAGE IN EN1 = EN2 = V or GND RISE FALL HYS V = 2.8 V OUT QOD Rev Page ADP222/ADP223/ADP224/ADP225 = 10 mA µF, T OUT2 IN OUT1 OUT2 Min Typ 2.5 65 100 300 0.2 − 5.5 V −2 OUT 0.495 0.500 + 0 ...
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... ADP222/ADP223/ADP224/ADP225 Parameter Symbol OUTPUT NOISE OUT POWER SUPPLY REJECTION RATIO PSRR 1 Accuracy when VOUTx is connected directly to ADJx or SENSEx. When the VOUTx voltage is set by external feedback resistors, the absolute accuracy in adjust mode depends on the tolerances of resistors used. 2 Based on an end-point calculation using 1 mA and 300 mA loads. ...
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... Table 4. Thermal Resistance J ) Package Type D 8-Lead 2 mm × LFCSP ESD CAUTION Rev Page ADP222/ADP223/ADP224/ADP225 ) of the package is JA AN-772 of the package is based on modeling and JB measures the component power flowing JB . Therefore, Ψ thermal paths include ...
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... ADP222/ADP223/ADP224/ADP225 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS ADP222/ ADP224 1 EN1 SENSE1 2 EN2 VOUT1 3 GND VIN 4 SENSE2 VOUT2 NOTES 1. CONNECT EXPOSED PAD TO GND. Figure 3. ADP222/ADP224 Pin Configuration Table 5. Pin Function Descriptions Pin No. ADP222/ADP224 ADP223/ADP225 ...
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... LOAD = 100µA 1.190 LOAD = 1mA LOAD = 10mA 1.185 LOAD = 100mA LOAD = 300mA 1.180 –40 – JUNCTION TEMPERATURE (°C) Figure 8. Output Voltage vs. Junction Temperature, V ADP222/ADP224 3.40 3.38 3.36 3.34 3.32 3.30 3.28 3.26 3.24 3.22 3.20 0.01 0 (mA) LOAD = 3.3 V, OUTx 2.85 2.84 2.83 2.82 2.81 2.80 2.79 2.78 2.77 2.76 2.75 0.01 0 (mA) LOAD = 2.8 V, OUTx 125 = 1.2 V, OUTx 100 1000 ADP222/ADP224 100 1000 ADP222/ADP224 ...
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... LOAD = 10mA LOAD = 100mA 1.785 LOAD = 300mA 1.780 2.30 2.70 3.10 3.50 3.90 4. 1.8 V, OUTx 1.220 1.215 1.210 1.205 1.200 1.195 LOAD = 10µA LOAD = 100µA 1.190 LOAD = 1mA LOAD = 10mA LOAD = 100mA 1.185 LOAD = 300mA 1.180 2.30 2.70 3.10 3.50 3.90 4. 1.2 V, OUTx Data Sheet 5.1 5.3 5.5 ADP222/ADP224 4.70 5.10 5.50 ADP222/ADP224 4.70 5.10 5.50 ADP222/ADP224 ...
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... I (mA) LOAD ADP222/ADP224 LOAD = 10µA LOAD = 10mA LOAD = 100µA LOAD = 100mA LOAD = 1mA LOAD = 300mA 2.70 3.10 3.50 3.90 4.30 4.70 5. 1.2 V, ADP222/ADP224 OUTx LOAD = 10µA LOAD = 10mA LOAD = 100µA LOAD = 100mA LOAD = 1mA LOAD = 300mA 2.70 3.10 3.50 3.90 4.30 4. 1.2 V and 1.8 V, OUTx ADP222/ADP224 1000 5.50 5.10 5.50 ...
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... ADP222/ADP223/ADP224/ADP225 3.40 3.38 3.36 3.34 3.32 3.30 3.28 3.26 3.24 3.22 3.20 –40 –5 25 JUNCTION TEMPERATURE (°C) Figure 23. Output Voltage vs. Junction Temperature, V ADP223/ADP225 2.85 2.84 2.83 2.82 2.81 2.80 2.79 2.78 2.77 2.76 2.75 –40 –5 25 JUNCTION TEMPERATURE (°C) Figure 24. Output Voltage vs. Junction Temperature, V ADP223/ADP225 1.820 1.815 1.810 1.805 1.800 1.795 1.790 1.785 1.780 –40 –5 25 JUNCTION TEMPERATURE (°C) Figure 25. Output Voltage vs. Junction Temperature, V ADP223/ADP225 1 ...
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... V, ADP223/ADP225 Figure 32. Output Voltage vs. Input Voltage, V 100 1000 = 1.2 V, ADP223/ADP225 Figure 33. Output Voltage vs. Input Voltage, V LOAD = 100µA LOAD = 1mA LOAD = 10mA LOAD = 50mA LOAD = 100mA LOAD = 300mA 5.10 5.30 5.50 = 3.3 V, ADP223/ADP225 Figure 34. Output Voltage vs. Input Voltage, V OUTx Rev Page ADP222/ADP223/ADP224/ADP225 2.85 2.84 2.83 2.82 2.81 2.80 2.79 2.78 2.77 2.76 2.75 3.50 3.70 3.90 4.10 4.30 4.70 4. 2.8 V, OUTx 1 ...
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... ADP222/ADP223/ADP224/ADP225 300 250 200 150 100 50 0 –40 –5 25 JUNCTION TEMPERATURE (°C) Figure 35. Ground Current vs. Junction Temperature, Single Output, Includes 100 µA for Output Divider, 500 450 400 350 300 250 200 150 100 50 0 –40 –5 25 JUNCTION TEMPERATURE (°C) Figure 36. Ground Current vs. Junction Temperature, Dual Output, Includes 200 µ ...
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... Figure 45. Ground Current vs. Input Voltage in Dropout 2.8 V OUT LOAD = 1mA LOAD = 5mA LOAD = 10mA LOAD = 50mA LOAD = 100mA LOAD = 300mA 3.5 3.6 Figure 46. Ground Current vs. Input Voltage in Dropout 3.3 V OUTx Rev Page ADP222/ADP223/ADP224/ADP225 2.90 2.85 2.80 2.75 2.70 2.65 2.60 2.55 LOAD = 1mA LOAD = 5mA 2.50 LOAD = 10mA LOAD = 50mA 2.45 LOAD = 100mA LOAD = 300mA 2 ...
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... ADP222/ADP223/ADP224/ADP225 50mV RIPPLE V = 4.3V – 3.3V OUT C = 1µF OUT –20 –30 –40 –50 –60 –70 –80 –90 –100 10 100 1k 10k FREQUENCY (Hz) Figure 47. Power Supply Rejection Ratio vs. Frequency 4. 3 OUTx 50mV RIPPLE V = 3.8V – 2.8V OUT C = 1µF OUT –20 – ...
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... Figure 56. Transient Line Response CH4 200mV 10.40 Figure 57. Transient Line Response CH4 200mV 9. Figure 58. Transient Load Response Rev Page ADP222/ADP223/ADP224/ADP225 OUT1 2 V OUT2 3 1 CH1 1V B CH2 10mV B M1µs A CH4 W ...
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... ADP222/ADP223/ADP224/ADP225 LOAD CURRENT ON V OUT1 OUT1 V OUT2 3 CH1 200mA Ω B CH2 50mV B M10µs A CH1 CH3 10.0mV T W Figure 59. Transient Load Response 1 OUTx OUTx LOAD 0.001 0.01 0 (mA) LOAD Figure 60. RMS Output Noise vs. Load Current and Output Voltage, ...
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... V to 5.5 V and provide up to 300 mA of current from each output. Drawing a low 300 μA quiescent current (typical) at full load make the ADP222/ ADP223/ADP224/ADP225 ideal for battery-operated portable equipment. Shutdown current consumption is typically 200 nA. ...
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... The ESR of the output capacitor affects the stability of the LDO control loop. A minimum of 0.7 µF capacitance with an ESR of 1 Ω or less is recommended to ensure the stability of the ADP222/ ADP223/ADP224/ADP225. Transient response to changes in load current is also affected by output capacitance. Using a ...
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... LDO with and without the QOD function. Both LDOs have a 1 kΩ resistor connected to each output. The LDO with the QOD function discharges the output less than 1 ms, whereas the 1 kΩ load takes over the same. Rev Page ADP222/ADP223/ADP224/ADP225 3.5 ENx 3.3V 2.8V 3 ...
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... CURRENT LIMIT AND THERMAL OVERLOAD PROTECTION The ADP222/ADP223/ADP224/ADP225 damage due to excessive power dissipation by current and thermal overload protection circuits. The ADP222/ADP223/ ADP224/ADP225 are designed to current limit when the output load reaches 300 mA (typical). When the output load exceeds 300 mA, the output voltage is reduced to maintain a constant current limit ...
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... Data Sheet The junction temperature of the ADP222/ADP223/ADP224/ ADP225 can be calculated × θ where the ambient temperature the power dissipation in the die, given [(V − × × OUT LOAD IN where the load current. ...
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... PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS Heat dissipation from the package can be improved by increasing the amount of copper attached to the pins of the ADP222/ADP223/ADP224/ADP225. However, as listed in Table 6, a point of diminishing returns is eventually reached beyond which an increase in the copper size does not yield significant heat dissipation benefits. ...
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... ADP222ACPZ-1825-R7 −40°C to +125°C ADP222ACPZ-1827-R7 −40°C to +125°C ADP222ACPZ-1833-R7 −40°C to +125°C ADP222ACPZ-2818-R7 −40°C to +125°C ADP222ACPZ-2827-R7 −40°C to +125°C ADP222ACPZ-3325-R7 −40°C to +125°C ADP222ACPZ-3328-R7 −40°C to +125°C ADP222ACPZ-3330-R7 −40°C to +125°C ADP224ACPZ-2818-R7 − ...
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... ADP222/ADP223/ADP224/ADP225 Model 1 Temperature Range ADP223ACPZ-R7 −40°C to +125°C ADP223CP-EVALZ ADP225CP-EVALZ RoHS Compliant Part. ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Output Voltage (V) VOUT1 VOUT2 Package Description Adjustable Adjustable 8-Lead Lead Frame Chip Scale ...