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ACT8712 датащи(PDF) 17 Page - Active-Semi, Inc

номер детали ACT8712
подробное описание детали  Four Channel Integrated Power Management IC for Handheld Portable Equipment
PDF  36 Pages
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производитель  ACTIVE-SEMI [Active-Semi, Inc]
домашняя страница  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8712 датащи(HTML) 17 Page - Active-Semi, Inc

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STEP-DOWN DC/DC CONVERTERS
Rev0, 25-Feb-08
ACT8712
Innovative Products. Active Solutions.
- 17 -
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
ActivePMU
TM is a trademark of Active-Semi.
I
2CTM is a trademark of Philips Electronics.
ELECTRICAL CHARACTERISTICS
(VVP2 = 3.6V, TA = 25°C, unless otherwise specified.)
: VNOM2 refers to the nominal output voltage level for VOUT2 as defined by the Ordering Information section.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VP2 Operating Voltage Range
3.1
5.5
V
VP2 UVLO Threshold
Input Voltage Rising
2.9
3
3.1
V
VP2 UVLO Hysteresis
Input Voltage Falling
80
mV
Standby Supply Current
130
200
µA
Shutdown Supply Current
ON1 = GA, VVP2 = 4.2V
0.1
1
µA
Output Voltage Regulation Accuracy
VNOM2 < 1.3V, IOUT2 = 10mA
-2.4%
VNOM2
+1.8%
VNOM2 ≥ 1.3V, IOUT2 = 10mA
-1.2%
VNOM2
+1.8%
Line Regulation
VVP2 = Max(VNOM2 + 1V, 3.2V) to 5.5V
0.15
%/V
Load Regulation
IOUT2 = 10mA to 750mA
0.0017
%/mA
Current Limit
0.85
1.1
A
Oscillator Frequency
VOUT2 ≥ 20% of VNOM2
1.35
1.6
1.85
MHz
VOUT2 = 0V
530
kHz
PMOS On-Resistance
ISW2 = -100mA
0.28
0.50
Ω
NMOS On-Resistance
ISW2 = 100mA
0.20
0.35
Ω
SW2 Leakage Current
VVP2 = 5.5V, VSW2 = 5.5V or 0V
1
µA
Power Good Threshold
94
%VNOM2
Minimum On-Time
70
ns
V



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