APW8855 Datasheet, PDF (15/43 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
13.3 VR2 Electrical Characteristics
These specifications apply over V = 12V, V = 3.3V, T = 25^oC, unless otherwise noted.
VSYS
OUT
A
Symbol
Param eter
Tes t Conditions
AP W88 55(V R2 )
Min
Typ
Max
PWM GATE DRIV ER
Switch ing Frequ ency
Accuracy
VVSYS =5.5 to 2 0V, V OUT=2.6V to 4 V
-
±1 5
Minimum Off Time
20 0
Minimum Controlla ble On
Time
60
80
PWM Sink Re sistance
15
20
PWM Sour ce Resista nce
15
20
PWM Leakag e Cu rrent
V3V3 _ALW_PWM= 5.5V
1 00
P R OT EC TI ON
Under- vol tag e Protection
(UVP)
UVP Deboun ce Time
65
70
75
-
2
-
Over-voltage P rotectio n
(OV P)
125
13 0
1 35
OV P Deb ounce Time
2
-
LDO REG ULATOR
V3V3_ LDO
LDO Regul ato r Un der-voltage
Lockout (UVLO )
LDO Regul ato r Output
Voltage A ccura cy
VVSYS Risin g, en able 3V 3_LDO
Hysteresis
3.8
4 .0
4.2
0.1
0.15
0.2
-1
+1
LDO Dropo ut Voltage
LDO Curren t Limit
IOUT=100mA, V3V3_ALW_ PWM=4 V
1.5
150
20 0
2 50
LDO Disch arge Resista nce
10
LDO Soft-start Time
10 0
VTHBYP_3V3 Bypass Thresh old
PWM Vo lta ge Ri si ng
Hysteresis
91
94
97
2
3
4
Bypass S witch On Resistance
-
1 .5
3
Bypass L eakage Curr ent
EFFICIE NCY
V3V3 _ALW_BYP= 5.5V, VVSYS=0 V
-
-
1 00
VOUT=3.3V, IOUT=5mA to 50mA, DCR<1 0m
Ω
93
Efficien cy (Refer to the typi ca l ^{VOUT=3.3V, IOUT=50mA to 500 mA,}
circuit)
D C R< 10m Ω
93
VO UT=3.3V, IO UT=3A, DCR<1 0mΩ
88
VO UT=3.3V, IO UT=8A, DCR<1 0mΩ
93
Unit
%
ns
ns
Ω
Ω
nA
%
µs
%
µs
%
V
%
V
mA
Ω
us
% VR2
% VR2
Ω
nA
%
%
%
%
Copyright © ANPEC Electronics Corp.
15
Rev. A.1 - Dec., 2015
www.anpec.com.tw