ACT8846
Rev 4, 25-May-16
STEP-DOWN DC/DC ELECTRICAL CHARACTERISTICS
(VVP1 = VVP2 = VVP3 = VVP4 = 3.6V, TA = 25°C, unless otherwise specified.)
PARAMETER
Operating Voltage Range
UVLO Threshold
CONDITIONS
MIN
2.7
TYP
MAX
5.5
UNIT
V
Input Voltage Rising
Input Voltage Falling
2.5
2.6
100
72
0
2.7
V
UVLO Hysteresis
mV
µA
Standby Supply Current
Shutdown Current
V
V
V
OUT = 103%, Regulator Enabled
VP = 5.5V, Regulator Disabled
OUT ≥ 1.0V, IOUT = 10mA
100
2
µA
-1%
-10
VNOM
1%
10
V
Output Voltage Accuracy
VOUT < 1.0V, IOUT = 10mA
mV
%/V
%/A
%/A
%VNOM
%VNOM
MHz
kHz
µs
Line Regulation
VVP = Max (VNOM +1V, 3.2V) to 5.5V
0.15
1.70
1.00
93
Load Regulation REG1/4
Load Regulation REG2/3
Power Good Threshold
Power Good Hysteresis
I
OUT = 10mA to IMAX
IOUT = 10mA to IMAX
OUT Rising
VOUT Falling
OUT ≥ 20% of VNOM
V
2
V
2
2.25
550
400
75
2.5
Switching Frequency
VOUT = 0V
Soft-Start Period
Minimum On-Time
REG1 AND REG4
Maximum Output Current
Current Limit
ns
1.5
1.8
A
A
2.2
0.11
0.08
0
2.7
2
PMOS On-Resistance
NMOS On-Resistance
SW Leakage Current
Input Capacitor
ISW = -100mA
ꢀ
ISW = 100mA
ꢀ
V
VP = 5.5V, VSW = 0 or 5.5V
µA
µF
µF
µH
4.7
33
Output Capacitor
Power Inductor
1.0
2.2
3.3
REG2 AND REG3
Maximum Output Current
Current Limit
2.8
3.5
A
A
4.2
0.07
0.08
0
PMOS On-Resistance
NMOS On-Resistance
SW Leakage Current
Input Capacitor
I
SW = -100mA
ISW = 100mA
VP = 5.5V, VSW = 0 or 5.5V
ꢀ
ꢀ
V
2
µA
µF
µF
µH
10
Output Capacitor
Power Inductor
44
0.5
1
2.2
: VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section.
: IMAX Maximum Output Current.
Innovative PowerTM
- 18 -
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