ADM7171ACPZ-R2 Ver la hoja de datos (PDF) - Analog Devices
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ADM7171ACPZ-R2 Datasheet PDF : 23 Pages
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Data Sheet
ADM7171
SPECIFICATIONS
VIN = (VOUT + 0.5 V) or 2.3 V (whichever is greater), EN = VIN, ILOAD = 10 mA, CIN = COUT = 4.7 µF, TA = 25°C for typical specifications,
TJ = −40°C to +125°C for minimum/maximum specifications, unless otherwise noted.
Table 2.
Parameter
INPUT VOLTAGE RANGE
LOAD CURRENT
OPERATING SUPPLY CURRENT
SHUTDOWN CURRENT
OUTPUT VOLTAGE ACCURACY
Fixed Output Voltage Accuracy
Adjustable Output Voltage
Accuracy
REGULATION
Line
Load
SENSE INPUT BIAS CURRENT
DROPOUT VOLTAGE1
OUTPUT NOISE
Noise Spectral Density
POWER SUPPLY REJECTION RATIO
TRANSIENT LOAD RESPONSE
START-UP TIME2
SOFT START CURRENT
CURRENT-LIMIT THRESHOLD3
VOUT PULL-DOWN RESISTANCE
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
UNDERVOLTAGE THRESHOLDS
Input Voltage Rising
Input Voltage Falling
Hysteresis
Symbol
VIN
ILOAD
IGND
IGND-SD
VOUT
VSENSE
∆VOUT/∆VIN
∆VOUT/∆ILOAD
SENSEI-BIAS
VDROPOUT
OUTNOISE
PSRR
tTR-REC
VDEV
VSETTLE
tSTART-UP
ISS
ILIMIT
VOUT-PULL
TSSD
TSSD-HYS
UVLORISE
UVLOFALL
UVLOHYS
Test Conditions/Comments
ILOAD = 0 µA
ILOAD = 1 A
EN = GND, VIN = 5 V
ILOAD = 10 mA, TJ = 25°C
100 μA< ILOAD < 1A VIN = (VOUT + 0.5V) to 6.5 V
ILOAD = 10 mA
10 mA < ILOAD < 2 A, VIN = (VOUT + 0.5 V) to 6.5 V
VIN = (VOUT + 0.5 V) to 6.5 V
ILOAD = 100 μA to 1 A
100 μA< ILOAD < 1 A, VIN = (VOUT + 0.5 V) to 6.5 V
ILOAD = 500 mA, VOUT = 3 V
ILOAD = 1 A, VOUT = 3 V
10 Hz to 100 kHz, all fixed output voltages
100 Hz to 100 kHz, all fixed output voltages
100 Hz, all fixed output voltages
1 kHz, all fixed output voltages
10 kHz, all fixed output voltages
100 kHz, all fixed output voltages
100 kHz, VIN = 4.0 V, VOUT = 3 V, ILOAD = 1 A, CSS = 0 nF
100 kHz, VIN = 3.5 V, VOUT = 3 V, ILOAD = 1 A, CSS = 0 nF
100 kHz, VIN = 3.3 V, VOUT = 3 V, ILOAD = 1 A, CSS = 0 nF
1 MHz, VIN = 4.0 V, VOUT = 3 V, ILOAD = 1 A, CSS = 0 nF
1 MHz, VIN = 3.5 V, VOUT = 3 V, ILOAD = 1 A, CSS = 0 nF
1 MHz, VIN = 3.3 V, VOUT = 3 V, ILOAD = 1 A, CSS = 0 nF
Time for output voltage to settle within ±VSETTLE
from VDEV for a 1 mA to 500 mA load step, load step
rise time = 400 ns
Output voltage deviation due to 1 mA to 500 mA load
step
Output voltage deviation after transient load response
time (tTR-REC) has passed, VOUT = 5 V, COUT = 4.7 µF
VOUT = 5 V, CSS = 0 nF
VOUT = 5 V, CSS = 1 nF
VIN = 5 V
EN = 0 V, VOUT = 1 V
TJ rising
Min
2.3
−0.5
−1.5
1.194
1.182
−0.1
0.5
1.3
1.94
Typ
0.7
4.0
0.25
1.200
0.1
1
42
84
6
5
110
40
20
12
60
53
42
31
30
20
1.5
35
0.1
380
1.0
1
2.1
11
150
15
200
Max
6.5
1
2.0
6.3
3.8
+1
+1.5
1.212
1.218
+0.1
0.4
70
135
1.5
2.7
2.28
Unit
V
A
mA
mA
µA
%
%
V
V
%/V
%/A
nA
mV
mV
µV rms
µV rms
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
dB
dB
dB
dB
dB
dB
μs
mV
%
µs
ms
µA
A
kΩ
°C
°C
V
V
mV
Rev. A | Page 3 of 23
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