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
50mV/div
LINE-TRANSIENT RESPONSE
(VIN STEP FROM 4V TO 7V)
MAX5092/93 toc09
IOUT = 250mA
5V (AC-COUPLED)
7V
VIN
1V/div
VBSOUT
1V/div
200µs/div
4V
7V (AC-COUPLED)
VIN
50V/div
LINE-TRANSIENT RESPONSE
(VIN STEP FROM 3.5V TO 72V)
MAX5092/93 toc10
IOUT = 5mA 72V
3.5V
VOUT
50mV/div
5V (AC-COUPLED)
VBSOUT
50V/div
72V
7V
40ms/div
SWITCHING WAVEFORMS
VBSOUT PROGRAMMED < (VOUT + VBST_DIS)
MAX5092/93 toc11
LINE-TRANSIENT RESPONSE
(VIN STEP FROM 3.5V TO 14V)
MAX5092/93 toc12
VIN
1V/div
VBSOUT
2V/div
VOUT
100mV/div
VIN = 5V, IOUT = 100mA,
VBSOUT PROGRAMMED TO 7V
ILX
2A/div
100µs/div
DROPOUT VOLTAGE (VBSOUT - VOUT)
vs. LDO LOAD CURRENT
1000
800
600
400
200
0
0
50 100 150 200 250
LDO LOAD CURRENT (mA)
5V
(AC-COUPLED)
7V
(AC-COUPLED)
5V
(AC-COUPLED)
VOUT
100mV/div
VBSOUT
5V/div
VIN
5V/div
0
LDO OUTPUT VOLTAGE
vs. LDO LOAD CURRENT (MAX5092B)
5.15
TA = -40°C: CIN = 10µF, CBSOUT = 4.7µF,
5.10
COUT = 10µF (CERAMIC)
TA = +25°C, +135°C: CIN = 47µF, CBSOUT = 22µF
(ELECTROLYTIC), COUT = 10µF (CERAMIC)
5.05
TA = +25°C, VIN = 4V
TA = +25°C, VIN = 14V
5.00
TA = -40C, VIN = 4V
TA = -40C, VIN = 14V
4.95
4.90
4.85
0
TA = +135°C, VIN = 4V
TA = +135°C, VIN = 14V
100
200
300
LDO LOAD CURRENT (mA)
5V (AC-COUPLED)
14V
7V
14V
3.5V
200µs/div
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
MAX5092/93 toc15
VIN = 14V, IOUT = 10mA
10dB/div
-70
100
1k
10k
100k
1M
FREQUENCY (Hz)
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