EVK-ACT8945AQJ303-T Datasheet, PDF (16/42 Pages) Active-Semi, Inc – Advanced PMU for Atmel SAMA5D3 Series & SAM9 Series Processors

ACT8945A
Rev 2, 11-Feb-14
STEP-DOWN DC/DC ELECTRICAL CHARACTERISTICS
(V_VP1 = V_VP2 = V_VP3 = 3.6V, T_A = 25°C, unless otherwise specified.)
PARAMETER
Operating Voltage Range
UVLO Threshold
UVLO Hysteresis
Quiescent Supply Current
Shutdown Current
Output Voltage Accuracy
Line Regulation
Load Regulation
Power Good Threshold
Power Good Hysteresis
Oscillator Frequency
Soft-Start Period
Minimum On-Time
REG1
Maximum Output Current
Current Limit
PMOS On-Resistance
NMOS On-Resistance
SW1 Leakage Current
REG2
Maximum Output Current
Current Limit
PMOS On-Resistance
NMOS On-Resistance
SW2 Leakage Current
REG3
Maximum Output Current
Current Limit
PMOS On-Resistance
NMOS On-Resistance
SW3 Leakage Current
CONDITIONS
Input Voltage Rising
Input Voltage Falling
Regulator Enabled (PWM Mode)
Regulator Enabled (PFM Mode)
V_VP = 5.5V, Regulator Disabled
V_OUT ≥ 1.2V, I_OUT = 10mA
V_OUT < 1.2V, I_OUT = 10mA
V_VP = Max (V_NOM¹ +1, 3.2V) to 5.5V
I_OUT = 10mA to IMAX²
V_OUT Rising
V_OUT Falling
V_OUT ≥ 20% of V_NOM
V_OUT = 0V
I_SW1 = -100mA
I_SW1 = 100mA
V_VP1 = 5.5V, V_SW1 = 0 or 5.5V
I_SW2 = -100mA
I_SW2 = 100mA
V_VP2 = 5.5V, V_SW2 = 0 or 5.5V
I_SW3 = -100mA
I_SW3 = 100mA
V_VP3 = 5.5V, V_SW3 = 0 or 5.5V
MIN
TYP
MAX UNIT
2.7
5.5
V
2.5
2.6
2.7
V
100
mV
4.5
mA
65
µA
0
1
µA
-1%
V_NOM
1%
V
-2%
V_NOM
2%
0.15
%/V
0.0017
%/mA
93
%V_NOM
2
%V_NOM
1.8
2
2.2
MHz
500
kHz
400
µs
75
ns
1.1
A
1.55 1.80 2.05
A
0.16
Ω
0.16
Ω
0
1
µA
1.1
A
1.55 1.80 2.05
A
0.16
Ω
0.16
Ω
0
1
µA
1.2
A
1.55 1.80 2.05
A
0.16
Ω
0.16
Ω
0
1
µA
: V_NOM refers to the nominal output voltage level for V_OUT as defined by the Ordering Information section.
2: IMAX Maximum Output Current.
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