ACT88430QJ-T
Rev 1.0, 24-Oct-2018
BUCK2 ELECTRICAL CHARACTERISTICS, REGULATORS:
(VIN_B2 = 3.3V, TA = 25°C, unless otherwise specified.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Operating Voltage Range
2.7
0.6
0.8
2
5.5
3.0
4.0
V
V
V
A
Configured for 9.375mV steps
Configured for 12.5mV steps
Output Voltage Range
Maximum Output Current
Supply Current, Standby
Low Power Mode Enabled
Regulator Only, No Load (VOUT = VSET*1.05)
40
µA
Supply Current, Shutdown
Regulator Disabled
0.1
1
µA
V
Output Voltage Accuracy – PWM
Default output voltage, IOUT = 1A
-1%
-1%
VNOM
1%
Default output voltage, IOUT = 1mA, Average
Ripple Voltage
Output Voltage Accuracy - PFM
Line Regulation
VNOM
0.02
1%
V
Default output voltage, VIN_B2 = 3.3V to 5.5V,
PWM mode
%/V
Load Regulation
Default output voltage, PWM Mode
VOUT_B2 Rising
0.04
93
%/A
Power Good Threshold
Power Good Hysteresis
Overvoltage Fault Threshold
Overvoltage Fault Hysteresis
Switching Frequency
92
94
%VNOM
%VNOM
%VNOM
%VNOM
MHz
VOUT_B2 Falling
3
VOUT_B2 Rising
107.5
110
3
112.5
VOUT_B2 Falling
VOUT_B2 ≥ 20% of VNOM
2.15
150
-25
2.25
2.36
485
+25
Configurable in 50us Steps
10% to 90% VNOM
Soft-Start Period – Programmable Range
Soft-Start Period
300
µs
%
Variation from set point
B2_ILIMSET=00
B2_ILIMSET=01
B2_ILIMSET=10
B2_ILIMSET=11
N/A
4.0
3.0
2.0
Internal High Side Peak Current Limit
(Cycle-by-Cycle) ILIMSET
A
At default ILIMSET
At other set points
-10%
-15%
ILIMSET
ILIMSET
+10%
+15%
Internal High Side Peak Current Limit
(Cycle-by-Cycle) Tolerance
Internal High Side Peak Current Limit,
Shutdown Level
Above ILIMSET = all settings
Below ILIMSET = all settings
16 consecutive clocks at 2.25MHz
+15%
-17.5%
6.78
+22.5%
-25%
+30%
-32.5%
7.44
nternal High Side Peak Current Limit,
IRQ Triggered Level
Internal High Side Peak Current Limit
IRQ Signal Deglitch Time
7.11
µs
PMOS On-Resistance
I
SW = -500mA, VIN_B2 = 3.3V
SW = 500mA, VIN_B2 = 3.3V
0.08
0.05
Ω
Ω
NMOS On-Resistance
I
SW Leakage Current – NMOS
SW Leakage Current – PMOS
VIN_B2 = 5.5V, VSW = 5.5V
VIN_B2 = 5.5V, VSW = 0V
1
1
µA
µA
B2_SLEW=00
B2_SLEW=01
B2_SLEW=10
B2_SLEW=11
Immediate
14.0
Dynamic Voltage Scaling Rate
mV/µs
ns
3.50
0.88
Switching Rise / Fall Times
VIN_B2 = 5V
3 / 5.5
Innovative PowerTM
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ActiveSwitcherTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP
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