MAX5093(2006) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX5093 Datasheet PDF : 23 Pages
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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.)
LDO LOAD-TRANSIENT RESPONSE
(MAX5092B)
MAX5092/93 toc22
INPUT-VOLTAGE STEP RESPONSE
MAX5092/93 toc23
IOUT = 5mA
VOUT
50mV/div
IOUT
100mA/div
2ms/div
(AC-COUPLED)
0mA
VOUT
20mV/div
VIN
20V/div
200ms/div
5V (AC-COUPLED)
72V
3.5V
ENABLE AND HOLD TIMING
MAX5092/93 toc24
INTERNAL BOOST DIODE FORWARD DROP
(MAX5092)
1500
VEN
5V/div
VHOLD
5V/div
VOUT
5V/div
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)
1250
0V
1000
0V
750
500
0V
250
VIN = 8V, BOOST CONVERTER
NOT SWITCHING
0
0 0.5 1.0 1.5 2.0 2.5 3.0
DIODE CURRENT (A)
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)
GROUND CURRENT DISTRIBUTION
(162 UNITS TESTED)
40
TA = TJ = +125°C
35
TA = TJ = -40°C
30
25
20
15
10
5
0
52 54 56 58 60 62 64 66 68 70
IGND (µA)
8 _______________________________________________________________________________________
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