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
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, VIN = 12V, ILIM = GND, PRESET = GND, TA = -40°C to +85°C, unless otherwise noted.) (Note 4)
PARAMETER
Input Voltage Range
Input Undervoltage Lockout
Threshold
BUCK REGULATOR
SYMBOL
VIN
VUVLO
VIN
VIN rising
VIN falling
CONDITIONS
MIN TYP MAX UNITS
4.5
24
V
3.6
4.4
V
3.5
4.3
FB3 Voltage Accuracy (Preset
Mode)
PRESET = GND
4.85
5.15
V
FB3 Set Voltage (Adjustable
Mode)
VFB3
PRESET = IN
0.97
1.03
V
LX Switch Minimum Off-Time
LX Switch Maximum On-Time
LX Switch On-Resistance
LX Current Limit
LINEAR REGULATORS
LDOIN Input Voltage
LDOIN UVLO
OUT1 Voltage Accuracy (Preset
Mode)
tOFF(MIN)
tON(MAX)
RLX
ILX(PEAK)
VIN = 6V
VIN = 4.5V
ILIM = IN
ILIM = GND
VLDOIN
VUVLO(LDO) VLDOIN rising, hysteresis = 40mV (typ)
VOUT1 PRESET = GND
IOUT1 = 100µA to
160mA
0.22
8
800
425
2.5
2.15
3.20
0.62
µs
12
µs
1.0
Ω
1.2
1200
mA
575
5.5
V
2.40
V
3.40
V
OUT2 Voltage Accuracy (Preset
Mode)
VOUT2 PRESET = GND
IOUT2 = 100µA to
160mA
1.74
1.86
V
FB1, FB2 Set Voltage (Adjustable
Mode)
VFB1, VFB2 PRESET = IN
IOUT_ = 100µA to
160mA
0.97
1.03
V
OUT1, OUT2 Adjustable Output
Voltage Range
VOUT1,
VOUT2
PRESET = IN
1.0
VLDOIN
V
Maximum OUT1 Output Current IOUT1(MAX) Continuous
160
mA
OUT1 Current Limit
160
550
mA
Maximum OUT2 Output Current
OUT2 Current Limit
IOUT2(MAX) Continuous
160
mA
160
550
mA
LDO_ Dropout Voltage
IOUT_ = 80mA (Note 2)
250
mV
LDO_ Line Regulation
VLDOIN = (VOUT_ + 0.4V) or +2.5V
-0.2
to +5.5V, IOUT_ = 1mA
+0.2 %/V
FAULT DETECTION
POK Threshold
OUT1, OUT2, and FB3 rising edge, 1%
hysteresis (Note 3)
-13
-8
%
4 _______________________________________________________________________________________
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