MAX8737 Просмотр технического описания (PDF) - Maxim Integrated
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MAX8737 Datasheet PDF : 15 Pages
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Dual, Low-Voltage Linear Regulator Controllers
with External MOSFETs
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
Linear Regulator UVP Threshold
(Fast)
UVP(FAST) With respect to VREFIN; CS_ = VCC
54
Slow Short-Circuit Timer Duration
Fast Short-Circuit Timer Duration
Discharge-Mode On-Resistance
OUT_ Pin
tUVP(SLOW) With respect to VREFIN; CS_ = VCC
tUVP(FAST) With respect to VREFIN; CS_ = VCC
ROUT
INPUTS AND OUTPUTS
EN_ Input Low Level
EN_ Input High Level
Enable Leakage Current
Rising edge, 200mV (typ) hysteresis
1.6
-1
Power-Good Trip Threshold
(Lower)
With respect to error comparator threshold,
-15
hysteresis = 4% (falling edge)
Power-Good Startup Delay
Power-Good Propagation Delay
tPGOOD
OUT_ forced 2% beyond PGOOD_ trip
threshold
Power-Good Output Low Voltage
Power Good Leakage Current
I GOO
ISINK = 4mA
VOUT_ = 1.0V (PGOOD_ high impedance),
TYP MAX UNITS
60
66
%
75
µs
5
µs
10
Ω
0.6
V
V
+1
µA
-12
-9
%
2
ms
1
µs
0.3
V
1
µA
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
VCC Shutdown Supply Current
REFIN to OUT Offset Voltage
DRIVERS
ICC
VOUT_
EN1 = EN2 = VCC
EN1 = EN2 = GND
1.5
mA
5
µA
-7
+7
mV
DRV_ Output Voltage Swing
(Note 1)
DRV_ Maximum Sourcing Current
DRV_ Maximum Sinking Current
DRV_ Soft-Start Charging Current
ISOFT
Output high; VOUT_ = VREFIN_ - 25mV;
ILOAD = 1mA
Output low; VOUT_ = VREFIN_ + 25mV:
ILOAD = 1mA
VOUT_ = VREFIN_ - 25mV; VDRV = 3V
VOUT_ = VREFIN_ + 25mV; VDRV = 3V
VCC -
0.3
3.5
3.5
40
V
0.3
mA
mA
400
µA
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