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ACT8849 Datasheet(PDF) 17 Page - Active-Semi, Inc

Part # ACT8849
Description  Advanced PMU for Multi-core Application Processors
PDF  35 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8849 Datasheet(HTML) 17 Page - Active-Semi, Inc

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ACT8849
Rev PrB, 12-Jun-14
Innovative PowerTM
- 17 -
www.active-semi.com
Copyright © 2014 Active-Semi, Inc.
Active-Semi Confidential―Do Not Copy or Distribute
ActivePMU
TM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
STEP-DOWN DC/DC ELECTRICAL CHARACTERISTICS
(VVP1 = VVP2 = VVP3 = VVP4 = 3.6V, TA = 25°C, unless otherwise specified.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Operating Voltage Range
2.7
5.5
V
UVLO Threshold
Input Voltage Rising
2.5
2.6
2.7
V
UVLO Hysteresis
Input Voltage Falling
100
mV
Standby Supply Current
VOUT = 103%, Regulator Enabled
72
100
µA
Shutdown Current
VVP = 5.5V, Regulator Disabled
0
2
µA
VOUT ≥ 1.0V, IOUT = 10mA
-1%
VNOM
1%
V
VOUT < 1.0V, IOUT = 10mA
-10
10
mV
Line Regulation
VVP = Max (VNOM1 +1V, 3.2V) to 5.5V
0.15
%/V
Load Regulation REG2/3
IOUT = 10mA to IMAX2
1.00
%/A
Power Good Threshold
VOUT Rising
93
%VNOM
Power Good Hysteresis
VOUT Falling
2
%VNOM
Switching Frequency
VOUT ≥ 20% of VNOM
2
2.25
2.5
MHz
VOUT = 0V
550
kHz
Soft-Start Period
400
µs
Minimum On-Time
75
ns
REG1 AND REG4
Maximum Output Current
1.5
A
Current Limit
1.8
2.2
2.7
A
PMOS On-Resistance
ISW = -100mA
0.11
Ω
NMOS On-Resistance
ISW = 100mA
0.08
Ω
SW Leakage Current
VVP = 5.5V, VSW = 0 or 5.5V
0
2
µA
Input Capacitor
4.7
µF
Output Capacitor
33
µF
Power Inductor
1.0
2.2
3.3
µH
REG2 AND REG3
Maximum Output Current
2.8
A
Current Limit
3.5
4.2
A
PMOS On-Resistance
ISW = -100mA
0.07
Ω
NMOS On-Resistance
ISW = 100mA
0.08
Ω
SW Leakage Current
VVP = 5.5V, VSW = 0 or 5.5V
0
2
µA
Input Capacitor
10
µF
Output Capacitor
44
µF
Power Inductor
0.5
1
2.2
µH
Output Voltage Accuracy
Load Regulation REG1/4
IOUT = 10mA to IMAX2
1.70
%/A
: VNOM refers to the nominal output voltage level for VOUT as defined by the Ordering Information section.
2
: IMAX Maximum Output Current.



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