ACT81460
Rev 1.0, 18-Dec-2018
Buck1 = 1.8V
Buck2 =1.2V
3100
3500
0.6
ILIM_SET = 0
ILIM_SET = 1
A
A
Current Limit, Cycle-by-Cycle
(accuracy is valid at a CMI’s
default setting)
1.2
2 consecutive switching cycles of 125% of cycle-by-
cycle current limit.
Current Limit, Warning
Current Limit, Shutdown
125
125
%
%
8 consecutive switching cycles of 125% of cycle-by-
cycle current limit.
PMOS On-Resistance
NMOS On-Resistance
SW Leakage Current
ISW = -0.2A, VIN = 5.0V
250
200
mΩ
mΩ
ISW = 0.2A, VIN = 5.0V
VIN = 5.5V, VSW = 0 or 5.5V, Tj < 60OC
0.1
50
µA
Dynamic Voltage Scaling Rate
5
mV/us
Pull Down Enabled when the regulator is turned off.
Output Pull Down Resistance
Recommended Max Duty Cycle
32
Ohms
%
V
OUTBX = 0.1.
85
Note1: L = 1uH, DCR = 80 mΩ, COUT_effective =10uF. If the user desires different VOUT configurations, from the default CMI, they
should consult with active-semi Applications staff for proper setup of the device. Default CMI is what sets the output voltages of the
regulators on POR event. Parts can be ordered with different CMI settings, to fit the specific customer output voltages in the appli-
cation.
Note2: For heavy loads and high frequency settings, may need to use different VFFResSelect [2:0] setting for a stable switching
frequency. Load may be limited when above 200mA, in order to keep the switch pin at a stable frequency Please consult with Appli-
cations for proper setup of different frequencies, and different output voltage settings.
Innovative PowerTM
ActiveSwitcherTM is a trademark of Active-Semi
www.active-semi.com
Copyright © 2018 Active-Semi, Inc.
12
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
