wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 19

• Manufacturer Part Number: wm8351
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

Production Data
7.3
Test Conditions
T
DC-DC1
Input Voltage
Output Voltage
VOUT Accuracy
Line Regulation
Load Regulation
Quiescent Current
Shutdown current
P-channel On
Resistance
N-channel On
Resistance
P-channel
leakage current
N-channel
leakage current
Switching
Frequency
w
A
PARAMETER
= +25ºC unless otherwise noted.
DC-DC STEP DOWN CONVERTER ELECTRICAL CHARACTERISTICS
I
V
SYMBOL
V
Q STANDBY
I
I
Q ACTIVE
OUT LOAD
OUT LINE
QSLEEP
V
V
R
R
I
I
f
V
I
LXP
LXN
SW
OUT
OUT
DSN
SD
DSP
IN
V
V
V
5.5V
V
I
I
I
Active (excluding switching losses)
Standby (excluding switching losses)
Sleep
V
V
V
V
/ 3.4V
OUT
OUT
OUT
IN
OUT
IN
OUT
IN
IN
IN
IN
= 3.7V
= 2.7V to
= 3.7V, I
= 3.7V, I
= 3.7V, L(n) = GND
= 3.7V, L(n) = 3.7V
= 0.001A to 1A
= 0A to 0.1A
= 0A to 0.01A
= 0.85V / 1.8V
= 1.8V
L(n)
L(n)
= 100mA
= 100mA
CONDITIONS
I
I
I
OUT
OUT
OUT
I
0.5A
I
0.005A
= 0.5A
= 0.1A
= 0.005A
OUT
OUT
=
=
Sleep
Active
Standby
Sleep
Active
Standby
Sleep
Active
0.85
MIN
2.7
+/- 0.25
+/- 3.0
+/- 0.5
+/- 0.4
+/- 0.2
+/- 0.2
+/- 0.3
0.167
2.048
+4.5
0.01
0.09
0.01
TYP
-1.5
265
115
3.7
2.8
25
+/- 0.5
+/- 0.5
MAX
5.5
3.4
PD, June 2009, Rev 4.1
UNITS
MHz
μA
μA
μA
μA
%
%
%
Ω
Ω
V
V
WM8351
19