Electrical characteristics (continued), Electrical characteristics – Rainbow Electronics MAX8737 User Manual
Page 3
MAX8737
Dual, Low-Voltage Linear Regulator Controllers
with External MOSFETs
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V, EN_ = CS_ = V
CC
, V
REFIN
= 1.0V, T
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Linear Regulator UVP Threshold
(Fast)
UVP
(FAST)
With respect to V
REFIN
; CS_ = V
CC
54
60
66
%
Slow Short-Circuit Timer Duration
t
UVP(SLOW)
With respect to V
REFIN
; CS_ = V
CC
75
µs
Fast Short-Circuit Timer Duration
t
UVP(FAST)
With respect to V
REFIN
; CS_ = V
CC
5
µs
Discharge-Mode On-Resistance
OUT_ Pin
R
OUT
10
Ω
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
2
ms
Power-Good Propagation Delay
t
PGOOD
OUT_ forced 2% beyond PGOOD_ trip
threshold
1
µs
Power-Good Output Low Voltage
I
SINK
= 4mA
0.3
V
Power Good Leakage Current
I
GOO
V
OUT
_ = 1.0V (PGOOD_ high impedance),
1
µA
ELECTRICAL CHARACTERISTICS
(V
CC
= 5V, EN_ = CS_ = V
CC
, V
REFIN
= 1.0V, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
V
CC
4.75
5.50
V
V
CC
Undervoltage Lockout
Threshold
Rising edge 200mV hysteresis (typ)
4.1
4.6
V
V
CC
Quiescent Supply Current
I
CC
EN1 = EN2 = V
CC
1.5
mA
V
CC
Shutdown Supply Current
EN1 = EN2 = GND
5
µA
REFIN to OUT Offset Voltage
V
OUT
_
-7
+7
mV
DRIVERS
Output high; V
OUT
_ = V
REFIN
_ - 25mV;
I
LOAD
= 1mA
V
CC
-
0.3
DRV_ Output Voltage Swing
(Note 1)
Output low; V
OUT
_ = V
REFIN
_ + 25mV:
I
LOAD
= 1mA
0.3
V
DRV_ Maximum Sourcing Current
V
OUT
_ = V
REFIN
_ - 25mV; V
DRV
= 3V
3.5
mA
DRV_ Maximum Sinking Current
V
OUT
_ = V
REFIN
_ + 25mV; V
DRV
= 3V
3.5
mA
DRV_ Soft-Start Charging Current
I
SOFT
40
400
µA