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MAX17536 数据表(PDF) 3 Page - Maxim Integrated Products

部件名 MAX17536
功能描述  4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
PDF  19 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  https://www.maximintegrated.com/en.html
标志 MAXIM - Maxim Integrated Products

MAX17536 数据表(HTML) 3 Page - Maxim Integrated Products

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(VIN = VEN/UVLO=24V,RRT=open(450kHz),CVCC = 2.2µF, VPGND = VSGND = VMODE/SYNC=0V,LX=SS=RESET = open, VBST
to VLX = 5V, VFB = 1V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C. All voltages are referenced
toSGND,unlessotherwisenoted.)(Note3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
LDO
VCCOutputVoltageRange
VCC
6V < VIN < 60V, IVCC = 1mA
4.75
5
5.25
V
1mA≤IVCC≤45mA
VCC CurrentLimit
IVCC-MAX
VCC = 4.3V, VIN = 6V
50
90
140
mA
VCC Dropout
VCC-DO
VIN = 4.5V, IVCC = 45mA
4.1
V
VCCUVLO
VCC_UVR
VCC rising
4.1
4.2
4.3
V
VCC_UVF
VCC falling
3.7
3.8
3.9
EXT LDO
EXT VCC Switchover Voltage
EXT VCC rising
4.56
4.7
4.84
V
EXT VCCOperatingVoltageRange
4.84
24
V
EXT VCC Switchover Voltage
Hysteresis
0.205 0.232 0.255
V
EXT VCC Dropout
EXT VCC-DO VEXTVCC = 4.75V, IEXT VCC = 45mA
0.4
V
EXT VCCCurrentLimit
EXT IVCC-MAX VCC = 4.3V, EXT VCC = 5V
45
85
140
mA
POWER MOSFET AND LOW-SIDE DRIVER
High-SidenMOSOn-Resistance
RDS-ONH
ILX = 1.0A
45
90
mΩ
LXLeakageCurrent
ILX_LKG
VLX = VIN - 1V, VLX = VPGND + 1V,
TA = +25°C
-4
1
+4
µA
DLPullupResistance
ISOURCE = 100mA
1.9
2.9
Ω
DLPulldownResistance
ISINK = 100mA
1
1.65
Ω
SOFT-START (SS)
Charging Current
ISS
VSS = 0V
4.7
5
5.3
µA
FEEDBACK (FB)
FBRegulationVoltage
VFB_REG
MODE=SGNDorMODE=VCC
0.887
0.9
0.912
V
MODE = open
0.887 0.915 0.936
FB Input Bias Current
IFB
0 < VFB < 1V, TA = +25°C
-75
+75
nA
MODE/SYNC
MODE Threshold
VM-DCM
MODE = VCC (DCM mode)
VCC -
0.6
V
VM-PFM
MODE = open (PFM mode)
VCC/2
VM-PWM
MODE=GND(PWMmode)
0.6
SYNCFrequencyCaptureRange
fSWsetbyRRT
1.1 x
fSW
1.4 x
fSW
kHz
SYNC Pulse Width
50
ns
SYNC Threshold
VIH
2.0
V
VIL
0.8
Maxim Integrated │ 3
MAX17536
4.5V to 60V, 4A, High-Efficiency, Synchronous
Step-Down DC-DC Converter
with Internal Compensation
www.maximintegrated.com
Electrical Characteristics
Electrical Characteristics



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