MAX5092 查看數據表（PDF） - Maxim Integrated
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MAX5092 Datasheet PDF : 23 Pages
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MAX5092/MAX5093
4V to 72V Input LDOs with Boost Preregulator
Typical Operating Characteristics (continued)
(VIN = VEN = 14V, CIN = 47μF, CBSOUT = 22μF, COUT = 10μF, CVL = 1μF, TA = +25°C, unless otherwise noted.) (See Figures 4–7 as
applicable.)
VOUT vs. TEMPERATURE
3.36
VOUT vs. TEMPERATURE
(MAX5092B)
5.10
LDO LOAD-TRANSIENT RESPONSE
(MAX5092B)
MAX5092/93 toc24
3.34
5.05
3.32
VOUT
50mV/div
(AC-COUPLED)
3.30
5.00
3.28
3.26
IOUT = 10mA, R5 = 100kΩ,
R4 = 165kΩ, FIGURE 6
3.24
-40 -15 10 35 60 85
TEMPERATURE (°C)
110 135
4.95
IOUT = 1mA, VSET = 0V
4.90
-40 -15 10 35 60 85 110 135
TEMPERATURE (°C)
IOUT
100mA/div
0mA
2ms/div
VOUT
20mV/div
INPUT-VOLTAGE STEP RESPONSE
MAX5092/93 toc25
IOUT = 5mA
5V
(AC-COUPLED)
72V
VEN
5V/div
VHOLD
5V/div
ENABLE AND HOLD TIMING
MAX5092/93 toc26
0V
0V
INTERNAL BOOST DIODE FORWARD DROP
(MAX5092)
1500
1250
1000
750
VIN
20V/div
3.5V
200ms/div
BOOST CONVERTER POWER LOSS
(VBSOUT = 7V)
1.0
0.8
TA = +105°C: VIN = 3.5V
VIN = 4V
VIN = 5V
0.6
0.4
TA = +25°C: VIN = 3.5V
0.2
VIN = 4V
VIN = 5V
0
0 50 100 150 200 250 300 350
IOUT (mA)
VOUT
5V/div
0V
200ms/div
BOOST CONVERTER POWER LOSS
(VBSOUT = 11V)
1.2
1.0
TA = +105°C: VIN = 4V
VIN = 5V
VIN = 3.5V
0.8
VIN = 4V
0.6
VIN = 3.5V
0.4
0.2
VIN = 5V
0
0 50 100 150 200 250 300 350
IOUT (mA)
500
250
0
0
VIN = 8V, BOOST CONVERTER
NOT SWITCHING
0.5 1.0 1.5 2.0 2.5 3.0
DIODE CURRENT (A)
GROUND CURRENT DISTRIBUTION
(162 UNITS TESTED)
40
35
TA = TJ = +125°C
TA = TJ = -40°C
30
25
20
15
10
5
0
52 54 56 58 60 62 64 66 68 70
IGND (µA)
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