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ACT8870 Datasheet(PDF) 16 Page - Active-Semi, Inc

Part # ACT8870
Description  Advanced PMU for Microcontrollers and Solid State Drive Applications
PDF  38 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8870 Datasheet(HTML) 16 Page - Active-Semi, Inc

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ACT8870QJ-T
REV 0 23-DEC-2016
Innovative PowerTM
ActiveSwitcherTM is a trademark of Active-Semi.
16
LDO1 ELECTRICAL CHARACTERISTICS
(VIN_LDO1 = 5V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Operating Voltage Range
2.4
5.5
V
Output Voltage Range–VSET
Configurable in 25mV steps
0.8
4.0
V
Output Current
VIN_LDO1 = 2.8V to 5.5V, LDO1_ILIM=11
0.75
A
Output Current
VIN_LDO1 = 2.4V to 2.8V, LDO1_ILIM=1x
0.4
A
Output Voltage Accuracy
VIN_LDO1 - VLDO1_OUT > 0.4V
-1
VSET
1
%
Line Regulation
VIN_LDO1 - VLDO1_OUT > 0.4V
VIN_LDO1 = 2.8V to 5.5V
ILDO1_OUT = 1mA
0.005
% / V
Load Regulation
ILDO1_OUT = 1mA to 750mA, LDO1_ILIM=11
0.15
% / A
Power Supply Rejection Ratio
f = 1kHz, ILDO1_OUT = 20mA, VLDO1_OUT = 2.5V
54
dB
f = 10kHz, ILDO1_OUT = 20mA, VLDO1_OUT = 2.5V
53
f = 2.25MHz, ILDO1_OUT = 20mA, VLDO1_OUT = 2.5V
44
Supply Current per Output
Regulator Enabled No Load
25
42
µA
Regulator Disabled
0
1
Soft-Start Period
VLDO1_OUT = 1.8V Setting (10% to 90%)
LDO1 SS_RAMP=00
LDO1 SS_RAMP=01
LDO1 SS_RAMP=10
LDO1 SS_RAMP=11
240
330
450
575
µs
VLDO1_OUT = 2.5V Setting (10% to 90%)
LDO1 SS_RAMP=00
LDO1 SS_RAMP=01
LDO1 SS_RAMP=10
LDO1 SS_RAMP=11
Not allowed
385
465
600
VLDO1_OUT = 3.3V Setting (10% to 90%)
LDO1 SS_RAMP=00
LDO1 SS_RAMP=01
LDO1 SS_RAMP=10
LDO1 SS_RAMP=11
Not allowed
450
525
660
Power Good Threshold
VLDO1_OUT Rising
92
93
94
%VNOM
Power Good Hysteresis
VLDO1_OUT Falling
3
%VNOM
Overvoltage Fault Threshold
VLDO1_OUT Rising
105
110
114
%VNOM
Overvoltage Fault Hysteresis
VLDO1_OUT Falling
3
%VNOM
Discharge Resistance
10
25
75
Ω
Dropout Voltage
ILDO1_OUT = 200mA
200
mV
Dropout Voltage
ILDO1_OUT = 400mA, LDO1_ILIM=1x
300
mV
Dropout Voltage
ILDO1_OUT = 750mA VIN_LDO1 > 2.8
LDO_ILIM=11
400
mV
Output Current Limit
LDO1_ILIM=00
LDO1_ILIM=01
LDO1_ILIM=10
LDO1_ILIM=11 (800mA min)
-15%
350
500
630
1000
+15%
mA
Startup Delay
Additional startup delay required before soft start ramp
LDO1_SS_RAMP=00
31
44
65
µs



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