MAX1982 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1982 Datasheet PDF : 13 Pages
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Low-Voltage, Low-Dropout Linear Regulators
with External Bias Supply
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 3, VIN = 1.8V, VOUT = 1.2V, ILOAD = 1mA, CLOAD = 10µF, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX UNITS
MAX1983 0.80V
Output Voltage Accuracy
Dropout Voltage
Current Limit
PGOOD COMPARATOR
Comparator Threshold
LOGIC AND I/O
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input Current
VOUT
VDO
ILIM
IOUT = 1mA to 300mA,
VOUT + 0.5V < VIN < 5.5V
ILOAD = 300mA
ILOAD = 150mA
VIN - VOUT = 1.3V
% of regulated output voltage
VIH
VIL
-3
330
-12.5
2.4
-1
+3
%
350
mV
175
1400 mA
-6
%
V
0.8
V
+1
µA
PGOOD Output Low Voltage
PGOOD sinking 1mA
0.1
V
PGOOD Output High Leakage
Current
0 < VPGOOD < VIN
-1
+1
µA
DYNAMICS
PGOOD Propagation Delay
tPD
Rising edge within 5% of regulation level
1
Note 1: Specifications over temperature are guaranteed by design, not production tested.
Note 2: VOUT is 1.2V for MAX1982. For MAX1983 VOUT is set to 1.2V with circuit of Figure 4.
4
ms
(Circuit of Figure 3, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
INPUT CURRENT vs. INPUT VOLTAGE
30
150
BIAS INPUT CURRENT
vs. INPUT VOLTAGE
GROUND CURRENT vs. OUTPUT CURRENT
175
29
145
28
140
27
135
26
VBIAS = 5V
25
VBIAS = 5V
130
1.5
2.5
3.5
4.5
5.5
1.5
2.5
3.5
4.5
5.5
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
170
165
160
VBIAS = 5V
VIN = 1.8V
155
0 50 100 150 200 250 300
OUTPUT CURRENT (mA)
4 _______________________________________________________________________________________
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