ADP151 Ver la hoja de datos (PDF) - Analog Devices
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ADP151 Datasheet PDF : 24 Pages
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ADP151
Data Sheet
Parameter
START-UP TIME3
CURRENT-LIMIT THRESHOLD4
UNDERVOLTAGE LOCKOUT
Input Voltage Rising
Input Voltage Falling
Hysteresis
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
EN INPUT
EN Input Logic High
EN Input Logic Low
EN Input Pull-Down Resistance
OUTPUT NOISE
Symbol
tSTART-UP
ILIMIT
UVLORISE
UVLOFALL
UVLOHYS
TSSD
TSSD-HYS
VIH
VIL
REN
OUTNOISE
POWER SUPPLY REJECTION RATIO PSRR
VIN = VOUT + 0.5 V
VIN = VOUT + 1 V
Conditions
VOUT = 3.3 V
TJ = 0°C to +125°C
TJ = −40°C to +125°C
TJ rising
2.2 V ≤ VIN ≤ 5.5 V
2.2 V ≤ VIN ≤ 5.5 V
VIN = VEN = 5.5 V
10 Hz to 100 kHz, VIN = 5 V, VOUT = 3.3 V
10 Hz to 100 kHz, VIN = 5 V, VOUT = 2.5 V
10 Hz to 100 kHz, VIN = 5 V, VOUT = 1.1 V
10 kHz, VIN = 3.8 V, VOUT = 3.3 V, IOUT = 10 mA
100 kHz, VIN = 3.8 V, VOUT = 3.3 V, IOUT = 10 mA
10 kHz, VIN = 4.3 V, VOUT = 3.3 V, IOUT = 10 mA
100 kHz, VIN = 4.3 V, VOUT = 3.3 V, IOUT = 10 mA
10 kHz, VIN = 2.2 V, VOUT = 1.1 V, IOUT = 10 mA
100 kHz, VIN = 2.2 V, VOUT = 1.1 V, IOUT = 10 mA
Min Typ Max Unit
180
µs
220 300 400 mA
1.96 V
1.28
V
120
mV
150
°C
15
°C
1.2
0.4
2.6
9
9
9
V
V
MΩ
µV rms
µV rms
µV rms
70
dB
55
dB
70
dB
55
dB
70
dB
55
dB
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.
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 2.2 V.
3 Start-up time is defined as the time between the rising edge of EN and VOUT 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 (that is, 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
0.7
µF
0.001
0.2 Ω
1 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.
Rev. E | Page 4 of 24
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