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MAX17504 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # MAX17504
Description  4.5V??0V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
PDF  26 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX17504 Datasheet(HTML) 4 Page - Maxim Integrated Products

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(VIN = VEN/UVLO=24V,RRT = 40.2kI(500kHz),CVCC = 2.2µF, VPGND = VSGND = VMODE = VSYNC = 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
referencedtoSGND,unlessotherwisenoted.)(Note2)
Note 2: All limits are 100% tested at +25°C. Limits over temperature are guaranteed by design.
Note 3: See the Overcurrent Protection/HICCUP Mode section for more details.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
RT AND SYNC
Switching Frequency
fSW
RRT=210kΩ
90
100
110
kHz
RRT=102kΩ
180
200
220
RRT=40.2kΩ
475
500
525
RRT=8.06kΩ
1950
2200
2450
RRT = OPEN
460
500
540
SYNCFrequencyCaptureRange
fSWsetbtRRT
1.1 x
fSW
1.4 x
fSW
kHz
SYNC Pulse Width
50
ns
SYNC Threshold
VIH
2.1
V
VIL
0.8
VFB Undervoltage Trip Level to
CauseHiccup
VFB-HICF
0.56
0.58
0.6
V
HICCUPTimeout
(Note 3)
32768
Cycles
Minimum On-Time
tON-MIN
MAX17504
135
ns
MAX17504S
55
80
ns
Minimum Off-Time
tOFF-MIN
140
160
ns
LX Dead Time
5
ns
RESET
RESET Output Level Low
IRESET = 1mA
0.4
V
RESET Output Leakage Current
TA = TJ = +25ºC, VRESET = 5.5V
-0.1
+0.1
µA
VOUT Threshold for RESET
Assertion
VFB-OKF
VFB falling
90.5
92
94
%
VOUT Threshold for RESET
Deassertion
VFB-OKR
VFB rising
93.8
95
97.2
%
RESET Deassertion Delay After FB
Reaches95%Regulation
1024
Cycles
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Temperature rising
165
ºC
ThermalShutdownHysteresis
10
ºC
Electrical Characteristics (continued)
Maxim Integrated │ 4
MAX17504
4.5V–60V, 3.5A, High-Efficiency, Synchronous
Step-Down DC-DC Converter
with Internal Compensation
www.maximintegrated.com



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