MAX1534 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1534
Maxim Integrated
MAX1534 Datasheet PDF : 16 Pages
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High-Efficiency, Triple-Output, Keep-Alive
Power Supply for Notebook Computers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = +12V, PRESET = GND, TA = +25°C, unless otherwise noted.)
LDO DROPOUT VOLTAGE
vs. LOAD CURRENT
100
90
80
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80
IOUT1 (mA)
LDO DROPOUT VOLTAGE vs. VOUT1
120
100
80
60
40
20
IOUT1 = 80mA
0
2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3
VOUT1 (V)
70
60
50
40
30
20
10
0
0.01
LDO PSRR vs. FREQUENCY
100Ω LOAD
0.1
1
10
100
FREQUENCY (kHz)
LDO LOAD TRANSIENT
MAX1534 toc15
VOUT1
20mV/div
AC-COUPLED
150mA
0
20µs/div
VLDOIN = 5V, IOUT1 = 10mA TO 150mA
IOUT1
50mA/div
STARTUP WAVEFORMS
MAX1534 toc16
SHDN
5V/div
0
VOUT3
2V/div
VOUT1
0
2V/div
0
VOUT2
2V/div
0
POK
0
5V/div
1A
ILX
0
1A/div
100µs/div
VIN = 12V, ROUT1 = 33Ω, ROUT2 = 18Ω, ROUT3 = 50Ω
SHUTDOWN WAVEFORMS
MAX1534 toc17
SHDN
5V/div
0
4V
VOUT3
VOUT1
VOUT2
0
VOUT_
2V/div
0
POK
5V/div
1A
0
ILX
1A/div
100µs/div
VIN = 12V, ROUT1 = 33Ω, ROUT2 = 18Ω, ROUT3 = 50Ω
_______________________________________________________________________________________ 7
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