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MAX1973 Fiches technique(PDF) 4 Page - Maxim Integrated Products

No de pièce MAX1973
Description  Smallest 1A, 1.4MHz Step-Down Regulators
PDF  15 Pages
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Fabricant  MAXIM [Maxim Integrated Products]
Site Internet  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1973 Fiches technique(HTML) 4 Page - Maxim Integrated Products

  MAX1973 Datasheet HTML 1Page - Maxim Integrated Products MAX1973 Datasheet HTML 2Page - Maxim Integrated Products MAX1973 Datasheet HTML 3Page - Maxim Integrated Products MAX1973 Datasheet HTML 4Page - Maxim Integrated Products MAX1973 Datasheet HTML 5Page - Maxim Integrated Products MAX1973 Datasheet HTML 6Page - Maxim Integrated Products MAX1973 Datasheet HTML 7Page - Maxim Integrated Products MAX1973 Datasheet HTML 8Page - Maxim Integrated Products MAX1973 Datasheet HTML 9Page - Maxim Integrated Products Next Button
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Smallest 1A, 1.4MHz Step-Down Regulators
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(VIN = VCTL_ = 3.3V, FB = OUT, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
+170
°C
Thermal-Shutdown Hysteresis
20
°C
ELECTRICAL CHARACTERISTICS
(VIN = VFB = VCTL_ = 3.3V, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN
IN Voltage Range
2.6
5.5
V
IN Undervoltage Lockout
Threshold
Rising and falling, hysteresis is 25mV (typ)
2.2
2.5
V
Supply Current
Switching with no load
7.5
mA
Supply Current in Dropout
VOUT set for 3.6V
5
mA
Shutdown Supply Current
VIN = 5.5V
10
µA
FB
MAX1973
1.25
VIN
Output Voltage Range
MAX1974
0.75
VIN
V
FBSEL not connected
1.2375
1.2625
FBSEL = GND
1.7820
1.8180
MAX1973
FBSEL = IN
2.4750
2.5250
FBSEL not connected
0.7425
0.7575
FBSEL = GND
0.99
1.01
FB Regulation Voltage
MAX1974
FBSEL = IN
1.485
1.515
V
FB Regulation Voltage
Positive Voltage Margining
MAX1973, CTL1 = GND, CTL2 = IN
3
5
%
FB Regulation Voltage
Negative Voltage Margining
MAX1973, CTL1 = IN, CTL2 = GND
-3
-5
%
FB Input Resistance to GND in
Preset Output Modes
10
70
k
Ω
FB Input Bias Current
FBSEL not connected
-0.15
+0.15
µA
SS (REFERENCE OUTPUT)
SS Source Current
-25
-15
µA
SS Sink Current
10
35
µA



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