max5093 Maxim Integrated Products, Inc., max5093 Datasheet - Page 8

• Manufacturer Part Number: max5093
• Description: 4v To 72v Input Ldos With Boost Preregulator
• Manufacturer: Maxim Integrated Products, Inc.

20mV/div
20V/div
4V to 72V Input LDOs with Boost Preregulator
(V
applicable.)
8
3.36
3.34
3.32
3.30
3.28
3.26
3.24
V
1.0
0.8
0.6
0.4
0.2
OUT
V
IN
0
IN
-40
_______________________________________________________________________________________
0
= V
I
R4 = 165kΩ, FIGURE 6
OUT
BOOST CONVERTER POWER LOSS
INPUT-VOLTAGE STEP RESPONSE
EN
-15
T
50
= 10mA, R5 = 100kΩ,
A
= +105°C: V
V
= 14V, C
OUT
100
10
TEMPERATURE (°C)
(V
vs. TEMPERATURE
BSOUT
V
V
150
I
200ms/div
35
IN
IN
OUT
IN
IN
= 4V
= 5V
= 3.5V
T
(mA)
A
200
= 47µF, C
= 7V)
60
= +25°C: V
250
85
I
OUT
V
V
MAX5092/93 toc25
IN
IN
IN
= 5mA
= 4V
= 5V
300
110
= 3.5V
BSOUT
350
135
72V
3.5V
5V
(AC-COUPLED)
= 22µF, C
Typical Operating Characteristics (continued)
5V/div
5V/div
V
5V/div
OUT
V
5.10
5.05
5.00
4.95
4.90
HOLD
1.2
1.0
0.8
0.6
0.4
0.2
V
OUT
EN
0
-40
0
= 10µF, C
T
V
A
IN
BOOST CONVERTER POWER LOSS
= +105°C: V
= 3.5V
-15
50
ENABLE AND HOLD TIMING
V
OUT
100
10
V
V
VL
IN
IN
IN
TEMPERATURE (°C)
(V
vs. TEMPERATURE
(MAX5092B)
= 5V
= 3.5V
= 4V
BSOUT
= 1µF, T
150
200ms/div
I
35
OUT
V
IN
(mA)
I
= 11V)
200
OUT
= 5V
60
= 1mA, V
V
A
IN
250
= +25°C, unless otherwise noted.) (See Figures 4–7 as
85
= 4V
MAX5092/93 toc26
SET
300
110
= 0V
350
135
0V
0V
0V
100mA/div
50mV/div
V
1500
1250
1000
I
OUT
OUT
750
500
250
40
35
30
25
20
15
10
5
0
0
INTERNAL BOOST DIODE FORWARD DROP
52
0
LDO LOAD-TRANSIENT RESPONSE
GROUND CURRENT DISTRIBUTION
54
0.5
56
(162 UNITS TESTED)
DIODE CURRENT (A)
1.0
58
(MAX5092B)
(MAX5092)
V
NOT SWITCHING
I
2ms/div
IN
GND
60 62
= 8V, BOOST CONVERTER
1.5
(μA)
T
T
A
A
2.0
64 66
= T
= T
J
J
MAX5092/93 toc24
= +125°C
= -40°C
2.5
68
70
3.0
0mA
(AC-COUPLED)