WM8352 Datasheet, PDF (19/336 Pages) Wolfson Microelectronics plc – Wolfson AudioPlus™ Stereo CODEC with Power Management

Production Data
WM8352
7.3 DC-DC STEP DOWN CONVERTER ELECTRICAL CHARACTERISTICS
Test Conditions
VIN = 3.7, VOUT = 1.8V, TA = +25ºC unless otherwise noted.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
DC-DC1 and DC-DC6
Input Voltage
Output Voltage
VOUT Accuracy
VIN
VOUT
VOUT
Line Regulation
VOUT LINE
Load Regulation
VOUT LOAD
Quiescent Current
Shutdown current
P-channel On
Resistance
N-channel On
Resistance
P-channel
leakage current
N-channel
leakage current
Switching
Frequency
IQ ACTIVE
IQ STANDBY
IQSLEEP
ISD
RDSP
RDSN
ILXP
ILXN
fSW
VIN = 3.7V
VOUT = 0.85V / 1.8V
/ 3.4V
IOUT =
0.5A
IOUT =
0.005A
Active
Sleep
VIN = 2.7V to
5.5V
VOUT = 1.8V
IOUT = 0.5A
IOUT = 0.1A
Active
Standby
IOUT = 0.005A Sleep
IOUT = 0.001A to 1A
Active
IOUT = 0A to 0.1A
IOUT = 0A to 0.01A
Standby
Sleep
Active (excluding switching losses)
Standby (excluding switching losses)
Sleep
VIN = 3.7V, IL(n) = 100mA
VIN = 3.7V, IL(n) = 100mA
VIN = 3.7V, L(n) = GND
VIN = 3.7V, L(n) = 3.7V
2.7
0.85
3.7
5.5
3.4
+/- 3.0
-1.5
+4.5
+/- 0.5
+/-
0.25
+/- 0.4
+/- 0.2
+/- 0.2
+/- 0.3
265
115
25
0.01
0.09
+/- 0.5
+/- 0.5
0.167
0.01
2.8
2.0
UNITS
V
V
%
%
%
μA
μA
Ω
Ω
μA
μA
MHz
w
PD, February 2011, Rev 4.4
19