Datasheet

(V
IN
= V
EN
= 14V, C
IN
= 47μF (low ESR), C
OUT
= 15μF, V
OUT
= 5V, SET = GND, T
A
= +25°C, unless otherwise specied.)
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
MAX5087 toc02
TEMPERATURE (°C)
I
GND
(A)
11095-25 -10 5 35 50 6520 80
50
40
30
20
10
60
70
80
90
100
110
120
0
-40 125
V
IN
= +45V
V
IN
= +14V
V
IN
= +6.5V
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX5087 toc03
TEMPERATURE (°C)
I
SHDN
(A)
12511080 95-10 5 20 35 50 65-25
2
4
6
8
10
12
14
16
18
20
0
-40 140
OUTPUT VOLTAGE
vs. TEMPERATURE
MAX5087 toc04
TEMPERATURE (°C)
V
OUT
(V)
12511080 95-10 5 20 35 50 65-25
4.80
4.85
4.90
4.95
5.00
5.05
5.10
5.15
5.20
5.25
4.75
-40 140
I
OUT
= 5mA
GROUND CURRENT
vs. TEMPERATURE (PULSED LOAD)
MAX5087 toc05
TEMPERATURE (°C)
I
GND
(mA)
1251109580655035205-10-25
1
2
3
4
5
6
0
-40 140
V
IN
= +6.5V
I
OUT
= 50mA
I
OUT
= 100mA
I
OUT
= 400mA
OUTPUT VOLTAGE
vs. LOAD CURRENT AND TEMPERATURE
MAX5087 toc06
TEMPERATURE (°C)
V
OUT
(V)
12511080 95-10 5 20 35 50 65-25
4.80
4.85
4.90
4.95
5.00
5.05
5.10
5.15
5.20
5.25
4.75
-40 140
V
IN
= +6.5V
I
OUT
= 100mA
I
OUT
= 50mA
I
OUT
= 400mA
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX5087 toc07
I
OUT
(mA)
V
DROPOUT
(V)
350300200 25050 100 150
0.15
0.30
0.45
0.60
0.75
0.90
1.05
1.20
1.35
1.50
0
0 400
V
OUT
= +5V
OUTPUT VOLTAGE vs.
INPUT VOLTAGE
MAX5087 toc01
V
IN
(V)
V
OUT
(V)
4515 20 25 30 35 405 10
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
0
I
OUT
= 0
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX5087 toc08
FREQUENCY (kHz)
PSRR (dB)
100101
-70
-60
-50
-40
-30
-20
-10
0
-80
0.1 1000
C
OUT
= 15F
I
OUT
= 10mA
LOAD-TRANSIENT RESPONSE
MAX5087 toc09
400s/div
V
OUT
200mV/div
AC-COUPLED
I
OUT
200mA/div
5mA
400mA
I
OUT
= 5mA
MAX5087 45V, 400mA, Low-Quiescent-Current
Linear Regulator with Adjustable Reset Delay
Maxim Integrated │ 4
www.maximintegrated.com
Typical Operating Characteristics