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MAX1982EUT+T

P1-P3P4-P6P7-P9P10-P12P13-P13
INPUT CURRENT vs. INPUT VOLTAGE
MAX1982/83 toc01
INPUT VOLTAGE (V)
INPUT CURRENT (μA)
4.53.52.5
26
27
28
29
30
25
1.5 5.5
V
BIAS
= 5V
BIAS INPUT CURRENT
vs. INPUT VOLTAGE
MAX1982/83 toc02
INPUT VOLTAGE (V)
BIAS INPUT CURRENT (μA)
4.53.52.5
135
140
145
150
130
1.5 5.5
V
BIAS
= 5V
GROUND CURRENT vs. OUTPUT CURRENT
MAX1982/83 toc03
OUTPUT CURRENT (mA)
GROUND CURRENT (μA)
25020015010050
160
165
170
175
155
0300
V
BIAS
= 5V
V
IN
= 1.8V
Typical Operating Characteristics
(Circuit of Figure 3, T
A
= +25°C, unless otherwise noted.)
MAX1982/MAX1983
Low-Voltage, Low-Dropout Linear Regulators
with External Bias Supply
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 3, V
IN
= 1.8V, V
OUT
= 1.2V, I
LOAD
= 1mA, C
LOAD
= 10µF, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYM B O L
CONDITIONS
MIN MAX UNITS
MAX1983 0.80V
Output Voltage Accuracy
V
OUT
I
OUT
= 1mA to 300mA,
V
OUT
+ 0.5V < V
IN
< 5.5V
-3 +3 %
I
LOAD
= 300mA 350
Dropout Voltage V
DO
I
LOAD
= 150mA 175
mV
Current Limit I
LIM
V
IN
- V
OUT
= 1.3V
330 1400
mA
PGOOD COMPARATOR
Comparator Threshold % of regulated output voltage
-12.5
-6 %
LOGIC AND I/O
SHDN Input High Voltage V
IH
2.4 V
SHDN Input Low Voltage V
IL
0.8 V
SHDN Input Current -1 +1 µA
PGOOD Output Low Voltage PGOOD sinking 1mA 0.1 V
PGOOD Output High Leakage
Current
0 < V
PGOOD
< V
IN
-1 +1 µA
DYNAMICS
PGOOD Propagation Delay t
PD
Rising edge within 5% of regulation level 1 4 ms
Note 1: Specifications over temperature are guaranteed by design, not production tested.
Note 2: V
OUT
is 1.2V for MAX1982. For MAX1983 V
OUT
is set to 1.2V with circuit of Figure 4.
MAX1982/MAX1983
Low-Voltage, Low-Dropout Linear Regulators
with External Bias Supply
_______________________________________________________________________________________
5
INPUT CURRENT vs. TEMPERATURE
MAX1982/83 toc04
TEMPERATURE (°C)
I
IN
(μA)
603510-15
25.5
26.0
26.5
27.0
27.5
28.0
25.0
-40 85
V
BIAS
= 5V
BIAS SUPPLY CURRENT vs. TEMPERATURE
MAX1982/83 toc05
TEMPERATURE (°C)
I
BIAS
(μA)
603510-15
120
125
130
135
140
145
150
115
-40 85
V
BIAS
= 5V
DROPOUT VOLTAGE vs. OUTPUT CURRENT
MAX1982/83 toc06
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE (mV)
25020015010050
50
100
150
200
0
0300
V
BIAS
= 5V
OUTPUT VOLTAGE ERROR
vs. OUTPUT CURRENT
MAX1982/83 toc07
OUTPUT CURRENT (mA)
V
OUT
ERROR (%)
25020050 100 150
-0.75
-0.50
-0.25
0
0.25
0.50
0.75
1.00
-1.00
0300
V
BIAS
= 5V
V
IN
= 1.8V
OUTPUT VOLTAGE ERROR vs. TEMPERATURE
MAX1982/83 toc08
TEMPERATURE (°C)
RELATIVE V
OUT
ERROR (%)
6035-15 10
-0.75
-0.50
-0.25
0
0.25
0.50
0.75
1.00
-1.00
-40 85
V
IN
= 1.8V
I
LOAD
= 300mA
I
LOAD
= 200mA
I
LOAD
= 0mA
SHORT-CIRCUIT CURRENT LIMIT
vs. INPUT VOLTAGE
MAX1982/83 toc09
INPUT VOLTAGE (V)
SHORT-CIRCUIT CURRENT LIMIT (mA)
4.503.502.50
100
200
300
400
500
600
700
800
0
1.50 5.50
POWER-SUPPLY REJECTION RATIO (V
IN
)
vs. FREQUENCY
MAX1982/83 toc11
FREQUENCY (Hz)
PSRR (dB)
100k10k1k100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10 1M
V
IN
= 2.1V
V
P-P
= 0.6V
I
LOAD
= 0
SHORT-CIRCUIT CURRENT LIMIT
vs. TEMPERATURE
MAX1982/83 toc10
TEMPERATURE (°C)
SHORT-CIRCUIT CURRENT LIMIT (mA)
603510-15
550
600
650
700
500
-40 85
Typical Operating Characteristics (continued)
(Circuit of Figure 3, T
A
= +25°C, unless otherwise noted.)
MAX1982/MAX1983
Low-Voltage, Low-Dropout Linear Regulators
with External Bias Supply
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(Circuit of Figure 3, T
A
= +25°C, unless otherwise noted.)
POWER-SUPPLY REJECTION RATIO (V
BIAS
)
vs. FREQUENCY
MAX1982/83 toc12
FREQUENCY (Hz)
PSRR (dB)
100k10k1k100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10 1M
V
BIAS
= 5V
V
P-P
= 0.6V
I
LOAD
= 0
RIPPLE REJECTION RATIO (V
IN
)
vs. FREQUENCY
MAX1982/83 toc13
FREQUENCY (Hz)
PSRR (dB)
100k10k1k100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10 1M
V
IN
= 3V
V
P-P
= 0.4V
I
L
= 300mA
I
L
= 200mA
I
L
= 100mA
LINE TRANSIENT (NO LOAD)
MAX1982/83 toc14
100μs/div
2.4V
1.8V
1mV/div
V
OUT
V
IN
500mV/
div
1mV/
div
LOAD TRANSIENT (1mA TO 300mA)
MAX1982/83 toc15
10μs/div
300mA
I
LOAD
V
OUT
200mA/
div
10mV/
div
LOAD TRANSIENT (300mA TO 1mA)
MAX1982/83 toc16
10μs/div
300mA
I
LOAD
V
OUT
200mA/
div
10mV/
div
LOAD TRANSIENT IN DROPOUT
MAX1982/83 toc17
20μs/div
300mA
I
LOAD
V
OUT
200mA/
div
50mV/
div
P1-P3P4-P6P7-P9P10-P12P13-P13

MAX1982EUT+T

Mfr. #:
Buy MAX1982EUT+T
Manufacturer:
Maxim Integrated
Description:
LDO Voltage Regulators Low-Voltage w/ External Bias Supply
Lifecycle:
New from this manufacturer.
Delivery:
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