APW8855 Datasheet, PDF (13/43 Pages) Anpec Electronics Coropration – High Current, High Frequency 7 Outputs Voltage Regulator and Power Management IC for High Performance Tablet and Ultra Notebook Applications

APW8855
13.2 VR1 Electrical Characteristics
These specifications apply over V_VSYS = 12V, V_{5V_ALW} = 5.06V, TA = 25^oC, unless otherwise noted.
S ymb ol
Parame ter
Test Conditions
AP W8855 (VR1)
Min
Typ
Max
PWM OUTPUT V OLTAGE
O utput Vo ltag e Accuracy
O utput Vo ltag e Line/Lo ad
Re gulation
L oad Transient Drop Volta ge
L oad Transient Overshoo t
Vo ltag e
O utput Step Ramp Rate
Accu racy
TA = 25°C
Vin=7.5V to 2 0V, I_OUT=1.08A to 4 A
Tr=200n s, IOUT=1 .08 A to 4A, Refer to the
typical circuit
Tf=200n s, IOUT=4A to 1.08 A, Refer to the
typical circuit
-
-
±0.8
±0.2
-4
+4
-1 0
+1 0
O utput Vo ltag e S oft-start Rate
9
10
11
O utput Dischar ge Re sistance
10
Fe edback Leakag e Cu rrent
PWM GATE DRIV ER
V5V_ALW_FBP = 5 .5V
-
-
10 0
Switchi ng Fr eque ncy
Accu racy
Switchi ng Fr eque ncy
VVSYS =7.5 to 20 V, V OUT=4V to 5.5V
VVSYS =5.5V, VOUT= 5.06V
-
-
±15
30 0
Min imum Off Time
200
Min imum Co ntrollab le On
Time
60
80
PWM Sink Resista nce
15
20
PWM Source Resistance
15
20
PWM L eakage Curre nt
V5V_ALW_PWM=5.5V
10 0
PROTE CTION
Un der-voltage P rotectio n
( UVP)
65
70
75
UV P Deb ounce Time
-
2
-
O ver-voltage Pro te ction
( OVP )
12 5
130
13 5
O VP Debo unce Time
2
-
Unit
%
%
%
%
%
mV/µs
Ω
nA
%
kHz
ns
ns
Ω
Ω
nA
%
µs
%
µs
Copyright © ANPEC Electronics Corp.
13
Rev. A.1 - Dec., 2015
www.anpec.com.tw