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APW8855 데이터시트(HTML) 17 Page - Anpec Electronics Coropration

부품명 APW8855
상세내용  High Current, High Frequency 7 Outputs Voltage Regulator and Power Management IC for High Performance Tablet and Ultra Notebook Applications
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제조사  ANPEC [Anpec Electronics Coropration]
홈페이지  http://www.anpec.com.tw
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APW8855 데이터시트(HTML) 17 Page - Anpec Electronics Coropration

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Copyright
© ANPEC Electronics Corp.
Rev. A.1 - Dec., 2015
APW8855
www.anpec.com.tw
17
13.4 VR3 Electrical Characteristics
These specifications apply over V
VSYS = 12V, VOUT = 1.8V, TA = 25
oC, unless otherwise noted.
AP W8855 (VR3)
S ymbol
P arame ter
Test Conditions
Min
Typ
Max
Unit
EFFICIENCY
VOUT=1 .8 V, IOUT=5mA to 5 0mA, DCR<25m
Ω
8 8
%
VOUT=1 .4 5V, IO UT=0.1 A to 3A, DCR<25mΩ
8 2
%
VOUT=1 .8V, IOUT=0 .1A to 3 A, DCR<25m
Ω
8 5
%
Efficiency (Re fe r to th e typical
cir cu it)
VOUT=2 .2 5V, IO UT=3A, DCR<2 5mΩ
8 7
%
13.5 VR4 Electrical Characteristics
These specifications apply over V
VSYS = 12V, VOUT = 1.5V, TA = 25
oC, unless otherwise noted.
AP W8855 (VR4)
S ymbol
P arame ter
Test Conditions
Min
Typ
Max
Unit
PWM CONTRO LLE R
S witchi ng Fr eque ncy
A ccu racy
De fa ult is 2MHz
-
±10
%
Ma ximum Duty Cycl e
70
8 0
90
%
Min imum Co ntrollab le On
Time
-
7 0
-
n s
Hig h-side MOS FE T On
Re sistance
V1V5_ALW_IN=5V
5 5
L ow-side MOS FE T On
Re sistance
V1V5_ALW_IN=5V
4 0
Inp ut L eakage Curre nt
VR4 is off, V1V5_ALW_IN=5.5V
1
µA
L X Leakag e Cu rrent
V1V5_ALW_LX =5.5V, V1V5_ALW_IN=5.5V
1
µA
Ze ro Cu rrent Offset
-5
5
mV
PWM OUTPUT V OLTEGE
O utput Vo ltag e Accuracy
TA = 25
°C
-
±0.8
%
O utput Vo ltag e Load
Re gulation
±0.2
%
L oad Transient Drop Volta ge
Tr=200n s, IOUT=0 .81 A to 3A, Refer to the
typical circuit
-3
%
L oad Transient Overshoo t
Vo ltag e
Tf=200n s, IOUT=3A to 0.81 A, Refer to the
typical circuit
+3
%
O utput Step Ramp Rate
A ccu racy
-1 0
+1 0
%
O utput Vo ltag e S oft-start Rate
9
1 0
11
mV/
µs
O utput Dischar ge Re sistance
CTL=0V
1 0
Ω
Fe edback Leakag e Cu rrent
V1V5_ALW_FBP = 5.5V
-
-
10 0
nA


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