ADP320(Rev0) Просмотр технического описания (PDF) - Analog Devices
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ADP320 Datasheet PDF : 20 Pages
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ADP320
Parameter
POWER SUPPLY REJECTION RATIO
Symbol
PSRR
Conditions
VIN = 1.8 V, VOUT = 0.8 V, IOUT = 100 mA
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
VIN = 3.8 V, VOUT = 2.8 V, IOUT = 100 mA
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
Min Typ Max Unit
70
dB
70
dB
70
dB
60
dB
40
dB
68
dB
62
dB
68
dB
60
dB
40
dB
1 Based on an end-point calculation using 1 mA and 200 mA loads.
2 Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the nominal output voltage. This applies only for output
voltages above 1.8 V.
3 Start-up time is defined as the time between the rising edge of ENx to VOUTx being at 90% of its nominal value.
4 Current-limit threshold is defined as the current at which the output voltage drops to 90% of the specified typical value. For example, the current limit for a 3.0 V
output voltage is defined as the current that causes the output voltage to drop to 90% of 3.0 V, or 2.7 V.
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
Table 2.
Parameter
MINIMUM INPUT AND OUTPUT CAPACITANCE1
CAPACITOR ESR
Symbol
CMIN
RESR
Conditions
TA = −40°C to +125°C
TA = −40°C to +125°C
Min Typ Max Unit
0.70
μF
0.001
1
Ω
1 The minimum input and output capacitance should be greater than 0.70 μF over the full range of operating conditions. The full range of operating conditions in the
application must be considered during device selection to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended,
Y5V and Z5U capacitors are not recommended for use with LDOs.
Rev. 0 | Page 4 of 20
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