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MAX18066 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # MAX18066
Description  High-Efficiency, 4A, Step-Down DC-DC Regulators with Internal Power Switches
PDF  22 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX18066 Datasheet(HTML) 4 Page - Maxim Integrated Products

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(VIN = 12V, CVDD = 1µF, CIN = 22µF, TA = TJ = -40°C to +85°C, typical values are at TA = TJ = +25°C, unless otherwise noted.) (Note 4)
Note 4: Specifications are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed by
design and characterization.
Electrical Characteristics (continued)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
INTERNAL LDO OUTPUT (VDD)
VDD Output Voltage
VDD
IVDD = 1mA, VIN = 6.5V to 16V
4.75
5.1
5.45
V
IVDD = 1mA to 25mA, VIN = 6.5V
4.75
5.1
5.45
VDD Short-Circuit Current
VIN = 6.5V
30
90
mA
VDD LDO Dropout Voltage
IVDD = 5mA, VDD drops by 2%
100
mV
VDD Undervoltage Lockout
Threshold
VUVLO_TH
VDD rising, LX starts switching
3.7
3.9
4.1
V
VDD Undervoltage Lockout
Hysteresis
VUVLO_HYST
150
mV
POWER SWITCH
LX On-Resistance
High-side switch, ILX = 0.4A
40
mΩ
Low-side switch, ILX = 0.4A
18.5
High-Side Switch Source
Current-Limit Threshold
IHSCL
5.5
7.7
A
Low-Side Switch Zero-Crossing
Current-Limit Threshold
0.21
A
High-Side Switch Skip Sourcing
Current-Limit Threshold
0.58
A
LX Leakage Current
VBST = 21V, VIN = VLX = 16V
0.01
µA
VBST = 5V, VIN = 16V, VLX = 0V
0.01
BST Leakage Current
VBST = 21V, VIN = VLX = 16V
0.01
µA
BST On-Resistance
IBST = 5mA
10
Ω
HICCUP PROTECTION
Blanking Time
21 x
soft-start
time
THERMAL SHUTDOWN
Thermal Shutdown Threshold
Rising
160
°C
Thermal Shutdown Hysteresis
20
°C
www.maximintegrated.com
Maxim Integrated │ 4
MAX18066/MAX18166
High-Efficiency, 4A, Step-Down DC-DC
Regulators with Internal Power Switches



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