ACT8946AQJ203-T
Rev 1.0, 08-Jul-16
STEP-DOWN DC/DC ELECTRICAL CHARACTERISTICS
(VVP1 = VVP2 = VVP3 = 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
2.5
2.6
100
4.5
65
2.7
V
UVLO Hysteresis
Input Voltage Falling
mV
mA
µA
µA
Regulator Enabled (PWM Mode)
Regulator Enabled (PFM Mode)
VVP = 5.5V, Regulator Disabled
VOUT ≥ 1.2V, IOUT = 10mA
VOUT < 1.2V, IOUT = 10mA
VVP = Max (VNOM +1, 3.2V) to 5.5V
IOUT = 10mA to IMAX
VOUT Rising
Quiescent Supply Current
Shutdown Current
0
1
-1%
-2%
VNOM
VNOM
1%
2%
Output Voltage Accuracy
V
Line Regulation
0.15
0.0017
93
%/V
%/mA
%VNOM
%VNOM
MHz
kHz
Load Regulation
Power Good Threshold
Power Good Hysteresis
VOUT Falling
2
VOUT ≥ 20% of VNOM
1.8
2
2.2
Oscillator Frequency
VOUT = 0V
500
400
75
Soft-Start Period
µs
Minimum On-Time
REG1
ns
Maximum Output Current
Current Limit
1.1
A
A
1.55
1.80
0.16
0.16
0
2.05
1
PMOS On-Resistance
NMOS On-Resistance
SW1 Leakage Current
REG2
ISW1 = -100mA
Ω
ISW1 = 100mA
Ω
VVP1 = 5.5V, VSW1 = 0 or 5.5V
µA
Maximum Output Current
Current Limit
1.1
A
A
1.55
1.80
0.16
0.16
0
2.05
1
PMOS On-Resistance
NMOS On-Resistance
SW2 Leakage Current
REG3
ISW2 = -100mA
Ω
ISW2 = 100mA
Ω
VVP2 = 5.5V, VSW2 = 0 or 5.5V
µA
Maximum Output Current
Current Limit
1.2
A
A
1.55
1.80
0.16
0.16
0
2.05
PMOS On-Resistance
NMOS On-Resistance
SW3 Leakage Current
ISW3 = -100mA
Ω
ISW3 = 100mA
Ω
VVP3 = 5.5V, VSW3 = 0 or 5.5V
1
µA
: VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section.
: IMAX Maximum Output Current.
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