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MAX17506 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # MAX17506
Description  4.5V??0V, 5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
PDF  20 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX17506 Datasheet(HTML) 4 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 refer-
enced to SGND, unless otherwise noted.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS
FEEDBACK (FB)
FB Regulation Voltage
VFB_REG
MODE = SGND or MODE = 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 = +25ºC
-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 (PWM mode)
0.6
SYNC Frequency Capture Range
fSW set bt RRT
1.1 x
fSW
1.4 x
fSW
kHz
SYNC Pulse Width
50
ns
SYNC Threshold
VIH
2.0
V
VIL
0.8
CURRENT LIMIT
Peak Current-Limit Threshold
IPEAK-LIMIT
R
DL = open or RDL = 174kΩ
6.5
7.8
9.1
A
R
DL = 61.9k or RDL = 26.1k
5.85
7
8.15
A
Runaway Current-Limit Threshold
IRUNAWAY-LIMIT
R
DL = open or RDL = 174kΩ
7.33
8.8
10.4
A
R
DL = 61.9k or RDL = 26.1k
6.7
8.05
9.4
A
Negative Current Limit Comparator
Voltage Reference
MODE = open or MODE = VCC
0
mV
MODE = GND
42
50
58
PFM Current-Limit Threshold
IPFM
MODE = open
2
A
RT
Switching Frequency
fSW
RRT = 196kΩ
90
100
110
kHz
RRT = 93.1kΩ
180
200
220
RRT = open
420
450
480
RRT = 6.98kΩ
1950
2200 2450
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
95
160
ns
Minimum Off-Time
tOFF-MIN
140
160
ns
LX Dead Time
22
ns
Maxim Integrated │ 4
MAX17506
4.5V–60V, 5A, High-Efficiency, Synchronous
Step-Down DC-DC Converter
with Internal Compensation
www.maximintegrated.com
Electrical Characteristics (continued)



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