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MAX1533AETJ+ Datasheet(PDF) 7 Page - Maxim Integrated Products

Part # MAX1533AETJ+
Description  High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1533AETJ+ Datasheet(HTML) 7 Page - Maxim Integrated Products

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High-Efficiency, 5x Output, Main Power-Supply
Controllers for Notebook Computers
_______________________________________________________________________________________
7
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VIN = 12V, both SMPS enabled, VCC = 5V, FSEL = REF, SKIP = GND, VILIM_ = VLDO5, VINA = 15V, VLDOA = 12V,
ILDO5 = ILDO3 = ILDOA = no load, TA = -40°C to +85°C, unless otherwise noted.) (Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
FSEL = GND
170
230
FSEL = REF
240
330
Operating Frequency (Note 1)
fOSC
FSEL = VCC
375
575
kHz
FSEL = GND
91
FSEL = REF
91
Maximum Duty Factor (Note 1)
DMAX
FSEL = VCC
91
%
Minimum On-Time
tON(MIN)
250
ns
CURRENT LIMIT
ILIM_ Adjustment Range
0.5
VREF
V
Current-Limit Threshold (Fixed)
VLIMIT_
VCSH_ - VCSL_, ILIM_ = VCC
67
83
mV
VILIM_ = 2.00V
170
230
VILIM_ = 1.00V
90
110
Current-Limit Threshold
(Adjustable)
VLIMIT_
VCSH_ - VCSL_
VILIM_ = 0.50V
40
60
mV
INTERNAL FIXED LINEAR REGULATORS
LDO5 Output Voltage
VLDO5
ON3 = ON5 = GND, 6V < VIN < 26V,
0 < ILDO5 < 100mA
4.8
5.1
V
LDO5 Undervoltage-Lockout
Fault Threshold
Rising edge, hysteresis = 1%
3.75
4.30
V
LDO3 Output Voltage
VLDO3
Standby mode, 6V < VIN < 28V,
0 < ILOAD < 100mA
3.20
3.43
V
AUXILIARY LINEAR REGULATOR (MAX1537A ONLY)
LDOA Voltage Range
VLODA
523
V
INA Voltage Range
VINA
624
V
LDOA Regulation Threshold,
Internal Feedback
ADJA = GND, 0 < ILDOA < 120mA,
VINA > 13V
11.40
12.55
V
ADJA Regulation Threshold,
External Feedback
VADJA
0 < ILDOA < 120mA, VLDOA > 5.0V and
VINA > VLDOA + 1V
1.94
2.08
V
ADJA Dual-Mode Threshold
ADJA
0.10
0.25
V
Secondary Feedback
Regulation Threshold
VINA - VLDOA
0.63
0.97
V
INA Quiescent Current
IINA
VINA = 24V, ILDOA = no load
165
µA
REFERENCE (REF)
Reference Voltage
VREF
VCC = 4.5V to 5.5V, IREF = 0
1.97
2.03
V


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