ADP320 Analog Devices, ADP320 Datasheet - Page 4

• Manufacturer Part Number: ADP320
• Description: Triple, 200 mA, Low Noise, High PSRR Voltage Regulator
• Manufacturer: Analog Devices

ADP320
Parameter
POWER SUPPLY REJECTION RATIO
1
2
3
4
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
Table 2.
Parameter
MINIMUM INPUT AND OUTPUT CAPACITANCE
CAPACITOR ESR
1
Based on an end-point calculation using 1 mA and 200 mA loads.
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.
Start-up time is defined as the time between the rising edge of ENx to V
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.
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.
Symbol
PSRR
1
Conditions
V
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
V
100 Hz
1 kHz
10 kHz
100 kHz
1 MHz
IN
IN
= 1.8 V, V
= 3.8 V, V
OUTx
Symbol
C
R
Rev. A | Page 4 of 20
ESR
MIN
being at 90% of its nominal value.
OUT
OUT
= 0.8 V, I
= 2.8 V, I
Conditions
T
T
OUT
OUT
A
A
= −40°C to +125°C
= −40°C to +125°C
= 100 mA
= 100 mA
Min
0.70
0.001
Min
Typ
Typ
70
70
70
60
40
68
62
68
60
40
Max
1
Max
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Unit
µF
Ω