ACT81460
Rev 1.0, 18-Dec-2018
BUCK-BOOST ELECTRICAL CHARACTERISTICS
(VSYS = 3.6V, Fsw = 2MHz, TA = 25°C, unless otherwise specified)
PARAMETER
TEST CONDITIONS
MIN
2.7
TYP
MAX
5.5
UNIT
V
VINBB, Operating Voltage Range
VBBST, Output Voltage Range
Configurable in 50mV steps
3.2
5.0
V
VBBST >= 4.2V
250
400
mA
mA
µA
µA
%
IBBST, Maximum Output Current
VBBST < 4.2V, (Note 1)
VBBST = 5V, No Load
Regulator Disabled
No Load Input Current
Shutdown Current
0.9
1.2
0.1
3
IOUT = 100mA (PWM), BB Mode
IOUT = 1mA, BB Mode
-3
-5
VNOM
VNOM
Output Voltage Accuracy
5
%
VBBST = 5V, VINBB = 3.0V to 5.0V, 100mA, PWM
Regulation. (Note 2)
Line Regulation
0.03
0.4
92
%/V
%/A
Load Regulation
VBBST = 5V, PWM Regulation, (Note 1)
VBBST Rising
%VNO
M
Power Good Threshold
88
96
%VNO
M
Power Good Hysteresis
VBBST Falling
VBBST Rising
VBBST Falling
3
110
3
%VNO
M
Overvoltage Fault Threshold
Overvoltage Fault Hysteresis
105
115
%VNO
M
V
INBB = 3.6V, VBBST = 5.0V. (Note 1,Note 3)
Freq = 00
3.3
2.5
2.0
1.5
Switching Frequency, PWM Mode Freq = 01
MHz
Freq = 10
Freq = 11
Soft-Start Period TSS
10% to 90% VBBST ramp time (Note 1)
800
1500
0.85
1.2
1200
µs
µs
A
Tstart, Time from EN to PG
Time from enable to PGOOD / POK.
VBBST > 4.2V
Current Limit, Cycle-by-Cycle
Current Limit, Warning
VBBST <= 4.2V, (Note 2)
A
2 consecutive switching cycles at 125% of cycle-by-
cycle current limit.
125
%
Innovative PowerTM
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Copyright © 2018 Active-Semi, Inc.
13
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