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ACT8931A Datasheet(PDF) 16 Page - Active-Semi, Inc

Part # ACT8931A
Description  Advanced PMU for Rockchip RK2928/RK2926 Processors
PDF  42 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8931A Datasheet(HTML) 16 Page - Active-Semi, Inc

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ACT8931A
Rev 3, 29-Nov-12
Copyright © 2012 Active-Semi, Inc.
Innovative Power
TM
ActivePMU
TM and ActivePathTM are trademarks of Active-Semi.
I
2CTM is a trademark of NXP.
- 16 -
www.active-semi.com
STEP-DOWN DC/DC ELECTRICAL CHARACTERISTICS
(VVP1 = VVP2 = VVP3 = 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
Quiescent Supply Current
Regulator Enabled
65
90
µA
Shutdown Current
VVP = 5.5V, Regulator Disabled
0
1
µA
Output Voltage Accuracy
VOUT ≥ 1.2V, IOUT = 10mA
-1%
VNOM
1%
VOUT < 1.2V, IOUT = 10mA
-2%
VNOM
2%
Line Regulation
VVP = Max (VNOM1 +1, 3.2V) to 5.5V
0.15
%/V
Load Regulation
IOUT = 10mA to IMAX2
0.0017
%/mA
Power Good Threshold
VOUT Rising
93
%VNOM
Power Good Hysteresis
VOUT Falling
2
%VNOM
Oscillator Frequency
VOUT ≥ 20% of VNOM
1.8
2
2.2
MHz
VOUT = 0V
500
kHz
Soft-Start Period
400
µs
Minimum On-Time
75
ns
REG1
Maximum Output Current
1.1
A
Current Limit
1.55
1.80
2.05
A
PMOS On-Resistance
ISW1 = -100mA
0.16
Ω
NMOS On-Resistance
ISW1 = 100mA
0.16
Ω
SW1 Leakage Current
VVP1 = 5.5V, VSW1 = 0 or 5.5V
0
1
µA
REG2
Maximum Output Current
1.1
A
Current Limit
1.55
1.80
2.05
A
PMOS On-Resistance
ISW2 = -100mA
0.16
Ω
NMOS On-Resistance
ISW2 = 100mA
0.16
Ω
SW2 Leakage Current
VVP2 = 5.5V, VSW2 = 0 or 5.5V
0
1
µA
REG3
Maximum Output Current
1.2
A
Current Limit
1.55
1.80
2.05
A
PMOS On-Resistance
ISW3 = -100mA
0.16
Ω
NMOS On-Resistance
ISW3 = 100mA
0.16
Ω
SW3 Leakage Current
VVP3 = 5.5V, VSW3 = 0 or 5.5V
0
1
µA
V
: 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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