MAX5091 MAXIM [Maxim Integrated Products], MAX5091 Datasheet - Page 7

• Manufacturer Part Number: MAX5091
• Description: 28V, 100mA, Low-Quiescent-Current LDO with Reset and Power-Fail Input/Output
• Manufacturer: MAXIM [Maxim Integrated Products]

(Typical Application Circuit, V
wise noted.)
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
400
350
300
250
200
150
100
50
0
-40
-40
MAX5091A
V
S
= 4.75V
-5
-5
DROPOUT VOLTAGE
vs. TEMPERATURE
SENSE THRESHOLD
vs. TEMPERATURE
TEMPERATURE (°C)
SI INPUT RISING
TEMPERATURE (°C)
28V, 100mA, Low-Quiescent-Current LDO
SI INPUT FALLING
30
30
_______________________________________________________________________________________
with Reset and Power-Fail Input/Output
I
OUT
I
OUT
65
65
= 10mA
LOAD-TRANSIENT RESPONSE
= 100mA
S
= +14V, C
100
100
200μs/div
C
C
I
STEP
135
135
IN
OUT
= 10μF
= 100μA TO 50mA
= 10μF/10mΩ ESR
IN
= 10µF, C
4.60
4.58
4.56
4.54
4.52
4.50
4.48
4.46
4.44
4.42
4.40
Typical Operating Characteristics (continued)
MAX5091 toc19
5
4
3
2
1
0
-40
1.0
MAX5091A
OUT
V
SI
V
5V AC-COUPLED
100mV/div
50mA
I
20mA/div
100μA
OUT
FALLING
OUT
-5
= 10µF, V
1.1
RESET THRESHOLD
vs. TEMPERATURE
vs. SENSE INPUT
TEMPERATURE (°C)
SENSE OUTPUT
V
SENSE INPUT (V)
OUT
30
RISING
1.2
V
OUT
SI
65
= 0V, V
FALLING
1.3
V
100
SI
RISING
EN
= +2.4V, V
135
1.4
LINE-TRANSIENT RESPONSE
-10
-20
-30
-40
-50
-60
-70
-80
OUT
5
4
3
2
1
0
0
200μs/div
0.01
4.3
= +5V, T
MAX5091A
R
POWER-SUPPLY REJECTION RATIO
RES
V
OUT
= 10kΩ TO OUT
FALLING
vs. OUTPUT VOLTAGE
4.4
vs. SUPPLY CURRENT
0.1
RESET VOLTAGE
A
FREQUENCY (kHz)
MAX5091 toc20
= +25°C, unless other-
V
OUT
4.5
1
(V)
V
5V AC-COUPLED
200mV/div
I
40V
V
10V/div
14V
OUT
OUT
S
= 1mA
V
OUT
4.6
V
I
500mV
10
OUT
IN
= 14V
RISING
= 10mA
P-P
100
4.7
7