WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 18

• Manufacturer Part Number: WM8351CGEB/RV
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

WM8351
7.2
Test Conditions
T
DC-DC2
Input voltage
range
Output voltage
range
USB OTG output
voltage
Output current
Switch resistance
Maximum switch
current
Switching
frequency
Maximum duty
cycle
Efficiency
Quiescent current
Regulated
feedback voltage
Undervoltage
detect
Overvoltage
detect
Peak inductor
current limit
On resistance of
NGATE driver
Input capacitor
Inductor
Inductor current
rating
Output capacitor
w
A
PARAMETER
= +25ºC unless otherwise noted.
DC-DC STEP UP CONVERTER ELECTRICAL CHARACTERISTICS
I
f
SYMBOL
SW,MAX
CLK
V
V
V
R
V
V
V
I
V
OUT,USB
D
C
I
R
USB,UV
USB,OV
SAT,Lf
V
NGATE
C
V
FB,OV
OUT
I
CURR
FB,UV
I
L
OUT
Η
MAX
DD
PK
OUT
ON
FB
IN
IN
F
when used as converter
when used as switch
by default
(needs external component configuration)
V
DC2_FBSRC [1:0]=11
V
V
(DC2_ILIM_=1)
V
(DC2_ILIM_=1)
V
V
V
V
V
V
Shutdown or switch configuration
active; no switching
active; pulse skipping
DC2_FBSRC [1:0] = 00
DC2_FBSRC [1:0] = 01 or 10
below feedback voltage
DC2_FBSRC [1:0] = 11
above feedback voltage
DC2_FBSRC [1:0] = 11
V
DC2_ILIM_=1
P-Channel FET (I
N-Channel FET (I
X5R/X7R dielectric
DC2_ILIM_=1
DC2_FBSRC [1:0]= 00 or 11; V
DC2_FBSRC [1:0]= 00; V
DC2_FBSRC [1:0]= 00; V
DC2_FBSRC [1:0]= 01 or 10; V
DC2_FBSRC [1:0]= 01 or 10; V
DC2_FBSRC [1:0]= 01 or 10; V
IN
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
IN
<4.5V; I
=3.3V; V
=1.8V; V
=1.2V; V
=3V; f
=3.8V; V
=3.8V; V
=3V; V
=30V
=20V
=5.0V
CLK
OUT
OUT
=1.0MHz
OUT
OUT
OUT
OUT
OUT
=90%;
<100mA;
=3.2V; +25°C
=1.7V; +25°C
=1.1V; +25°C
=20V; I
=5.0V; I
CONDITIONS
PFET
NFET
=100mA)
=100mA)
OUT
OUT
=20mA
=100mA
OUT
OUT
=10V
=20V
OUT
OUT
OUT
OUT
=5V
=10V
=15V
=20V
-30%
0.84
0.18
MIN
500
320
2.7
1.2
V
1.0
3.7
2.0
1.5
0.9
0
IN
0.26
0.41
0.84
0.47
TYP
260
260
700
450
3.7
5.0
1.0
0.1
0.5
0.5
4.6
5.4
4.6
4.9
2.2
2.2
4.7
2.2
1.5
90
75
88
12
10
10
8
+30%
(100)
MAX
PD, April 2012, Rev 4.5
(30)
(18)
170
700
5.5
4.7
1.0
4.7
20
25
40
22
10
10
UNITS
Production Data
MHz
mA
mA
mA
mA
uA
F
H
F
%
%
%
%
V
V
V
Ω
V
V
V
Ω
18