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MAX17524 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # MAX17524
Description  4.5V to 60V, 3A, Dual-Output, High-Efficiency,Synchronous Step-Down DC-DC Converter
PDF  24 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX17524 Datasheet(HTML) 4 Page - Maxim Integrated Products

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(VIN = VEN/UVLO = 24V, RRT = Open (fSW = 450 kHz), CVCC = 2.2μF, VMODE/SYNC = VSGND = VPGND = VEXTVCC = 0V, VFB = 1V,
LX = SS = RESET = Open, VBST to VLX = 5V, TA = -40°C to 125°C, unless otherwise noted. Typical values are at TA = +25°C. All volt-
ages are referenced to SGND and the data is intended for both the converters, unless otherwise noted.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MODE/SYNC
MODE Threshold
VM-DCM
MODE/SYNC = VCC (DCM mode)
VCC - 0.6
V
VM-PFM
MODE/SYNC = Open (PFM mode)
VCC/2
VM-PWM
MODE/SYNC = SGND (PWM mode)
0.6
SYNC Frequency-Capture
Range
fSYNC
fSW set by RRT
1.1 x fSW
1.4 x fSW
SYNC Pulse Width
50
ns
SYNC Threshold
VIH
2
V
VIL
0.8
Number of Pulses Required to
Enter into SYNC Mode
8
CURRENT LIMIT
Peak Current-Limit Threshold
IPEAK-LIMIT
4.2
4.6
5.1
A
Runaway Peak Current-Limit
Threshold
IRUNAWAY-
LIMIT
5.1
5.6
6.3
A
PFM Peak Current-Limit
Threshold
IPFM
MODE/SYNC = Open
1.15
A
Negative Current-Limit
Threshold
VNEG-LIM
MODE/SYNC = OPEN OR MODE/SYNC
= VCC
-8
0
+8
mV
MODE/SYNC = SGND
42
50
60
RT
Switching Frequency
fSW
RRT = 100kΩ
97.5
105
112.5
kHz
RRT = 22.1kΩ
430
454
478
RRT = 8.25kΩ
950
1100
1250
RRT = Open
420
450
480
VFB Undervoltage Trip Level to
Cause Hiccup
VFB-HICF
0.56
0.58
0.61
V
HICCUP Timeout
(Note 4)
32768
Cycles
Minimum On-Time
tON-MIN
90
140
ns
Minimum Off-Time
tOFF-MIN
140
165
ns
LX Dead Time
LXDT
22
ns
Electrical Characteristics (continued)
www.maximintegrated.com
Maxim Integrated │ 4
MAX17524
4.5V to 60V, 3A, Dual-Output, High-Efficiency,
Synchronous Step-Down DC-DC Converter



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