ADP151 Analog Devices, ADP151 Datasheet - Page 4

• Manufacturer Part Number: ADP151
• Description: Ultra Low Noise, 200 mA CMOS Linear Regulator
• Manufacturer: Analog Devices

ADP151
Parameter
START-UP TIME
CURRENT-LIMIT THRESHOLD
UNDERVOLTAGE LOCKOUT
THERMAL SHUTDOWN
EN INPUT
OUTPUT NOISE
POWER SUPPLY REJECTION RATIO
1
2
3
4
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
Table 2.
Parameter
Minimum Input and Output
Capacitor ESR
1
Based on an end-point calculation using 0.1 mA and 200 mA loads. See Figure 8 for typical load regulation performance for loads less than 1 mA.
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 2.2 V.
Start-up time is defined as the time between the rising edge of EN and 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 (that is, 2.7 V).
The minimum input and output capacitance should be greater than 0.7 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 any LDO.
Input Voltage Rising
Input Voltage Falling
Hysteresis
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
EN Input Logic High
EN Input Pull-Down Resistance
V
V
Capacitance
EN Input Logic Low
IN
IN
= V
= V
OUT
OUT
+ 0.5 V
+ 1 V
1
3
4
Symbol
C
R
Symbol
t
I
UVLO
UVLO
UVLO
TS
TS
V
V
R
OUT
PSRR
LIMIT
START-UP
ESR
IH
IL
EN
MIN
SD
SD-HYS
NOISE
RISE
FALL
HYS
Conditions
T
T
Conditions
V
T
T
T
2.2 V ≤ V
2.2 V ≤ V
V
10 Hz to 100 kHz, V
10 Hz to 100 kHz, V
10 Hz to 100 kHz, V
10 kHz, V
100 kHz, V
10 kHz, V
100 kHz, V
10 kHz, V
100 kHz, V
J
J
J
A
A
OUT
IN
= 0°C to +125°C
= −40°C to +125°C
rising
= −40°C to +125°C
= −40°C to +125°C
= V
= 3.3 V
EN
IN
IN
= 5.5 V
IN
IN
IN
OUT
Rev. D | Page 4 of 24
IN
IN
IN
≤ 5.5 V
≤ 5.5 V
= 3.8 V, V
= 4.3 V, V
= 2.2 V, V
= 3.8 V, V
= 4.3 V, V
= 2.2 V, V
being at 90% of its nominal value.
IN
IN
IN
OUT
OUT
OUT
= 5 V, V
= 5 V, V
= 5 V, V
OUT
OUT
OUT
= 3.3 V, I
= 3.3 V, I
= 1.1 V, I
= 3.3 V, I
= 3.3 V, I
= 1.1 V, I
OUT
OUT
OUT
OUT
OUT
OUT
= 3.3 V
= 2.5 V
= 1.1 V
OUT
OUT
OUT
= 10 mA
= 10 mA
= 10 mA
= 10 mA
= 10 mA
= 10 mA
Min
220
1.28
1.2
Min
0.7
0.001
Typ
Typ
180
300
120
150
15
2.6
9
9
9
70
55
70
55
70
55
Max
400
1.96
0.4
Max
0.2
Unit
µF
Ω
Unit
µs
mA
V
V
mV
°C
°C
V
V
MΩ
µV rms
µV rms
µV rms
dB
dB
dB
dB
dB
dB