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MAX8737 Fiches technique(PDF) 3 Page - Maxim Integrated Products

No de pièce MAX8737
Description  Dual, Low-Voltage Linear Regulator Controllers with External MOSFETs
Download  15 Pages
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Fabricant  MAXIM [Maxim Integrated Products]
Site Internet  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX8737 Fiches technique(HTML) 3 Page - Maxim Integrated Products

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Dual, Low-Voltage Linear Regulator Controllers
with External MOSFETs
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V, EN_ = CS_ = VCC, VREFIN = 1.0V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Linear Regulator UVP Threshold
(Fast)
UVP(FAST) With respect to VREFIN; CS_ = VCC
54
60
66
%
Slow Short-Circuit Timer Duration
tUVP(SLOW) With respect to VREFIN; CS_ = VCC
75
µs
Fast Short-Circuit Timer Duration
tUVP(FAST) With respect to VREFIN; CS_ = VCC
5µs
Discharge-Mode On-Resistance
OUT_ Pin
ROUT
10
INPUTS AND OUTPUTS
EN_ Input Low Level
0.6
V
EN_ Input High Level
Rising edge, 200mV (typ) hysteresis
1.6
V
Enable Leakage Current
-1
+1
µA
Power-Good Trip Threshold
(Lower)
With respect to error comparator threshold,
hysteresis = 4% (falling edge)
-15
-12
-9
%
Power-Good Startup Delay
2ms
Power-Good Propagation Delay
tPGOOD
OUT_ forced 2% beyond PGOOD_ trip
threshold
1µs
Power-Good Output Low Voltage
ISINK = 4mA
0.3
V
Power Good Leakage Current
I GOO
VOUT_ = 1.0V (PGOOD_ high impedance),
1µA
ELECTRICAL CHARACTERISTICS
(VCC = 5V, EN_ = CS_ = VCC, VREFIN = 1.0V, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
VCC
4.75
5.50
V
VCC Undervoltage Lockout
Threshold
Rising edge 200mV hysteresis (typ)
4.1
4.6
V
VCC Quiescent Supply Current
ICC
EN1 = EN2 = VCC
1.5
mA
VCC Shutdown Supply Current
EN1 = EN2 = GND
5
µA
REFIN to OUT Offset Voltage
VOUT_-7
+7
mV
DRIVERS
Output high; VOUT_ = VREFIN_ - 25mV;
ILOAD = 1mA
VCC -
0.3
DRV_ Output Voltage Swing
(Note 1)
Output low; VOUT_ = VREFIN_ + 25mV:
ILOAD = 1mA
0.3
V
DRV_ Maximum Sourcing Current
VOUT_ = VREFIN_ - 25mV; VDRV = 3V
3.5
mA
DRV_ Maximum Sinking Current
VOUT_ = VREFIN_ + 25mV; VDRV = 3V
3.5
mA
DRV_ Soft-Start Charging Current
ISOFT
40
400
µA


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