ACT8865
Rev 2, 11-Feb-14
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)
7.0
Quiescent Supply Current
Shutdown Current
V
VP = 5.5V, Regulator Disabled
0
1
ꢀ
VOUT ≥ 1.2V, IOUT = 10mA
-1%
-2%
VNOM
VNOM
1%
2%
Output Voltage Accuracy
V
ꢀ
VOUT < 1.2V, IOUT = 10mA
Line Regulation
V
VP = Max(VNOM1 +1, 3.2V) to 5.5V
I
OUT = 10mA to IMAX2
0.15
0.0017
93
%/V
%/mA
%VNOM
%VNOM
MHz
kHz
Load Regulation
Power Good Threshold
Power Good Hysteresis
V
V
V
V
OUT Rising
OUT Falling
2
OUT ≥ 20% of VNOM
OUT = 0V
1.8
2
2.2
Oscillator Frequency
500
400
75
Soft-Start Period
Minimum On-Time
REG1
µs
ns
Maximum Output Current
Current Limit
1.15
1.5
A
A
1.8
2.1
1
PMOS On-Resistance
NMOS On-Resistance
SW1 Leakage Current
REG2
I
SW1 = -100mA
SW1 = 100mA
0.16
0.16
ꢀ
I
ꢀ
V
VP1 = 5.5V, VSW1 = 0 or 5.5V
µA
Maximum Output Current
Current Limit
1.15
1.5
A
A
1.8
2.1
1
PMOS On-Resistance
NMOS On-Resistance
SW2 Leakage Current
REG3
I
SW2 = -100mA
SW2 = 100mA
0.16
0.16
ꢀ
I
ꢀ
V
VP2 = 5.5V, VSW2 = 0 or 5.5V
µA
Maximum Output Current
Current Limit
1.30
1.7
A
A
2.1
0.16
0.16
0
2.5
PMOS On-Resistance
I
SW3 = -100mA
ISW3 = 100mA
VP3 = 5.5V, VSW3 = 0 or 5.5V
ꢀ
NMOS On-Resistance
SW3 Leakage Current
ꢀ
V
1
µA
ꢀ: VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section.
2: IMAX Maximum Output Current.
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