WM8352
Production Data
Test Conditions
VIN = 3.7, VOUT = 1.8V, TA = +25ºC unless otherwise noted.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC-DC3 and DC-DC4
Input Voltage
VIN
2.7
3.7
5.5
3.4
V
V
Output Voltage
VOUT Accuracy
VOUT
VOUT
0.85
VIN = 3.7V
IOUT
0.5A
=
Active
Sleep
+/- 3.0
%
VOUT = 0.85V / 1.8V
/ 3.4V
IOUT
0.005
A
=
-1.5
+4.5
Line Regulation
VIN = 2.7V to
5.5V
I
OUT = 0.25A
Active
+/- 0.4
IOUT
=
Standby
+/-
VOUT = 1.8V
0.025A
(100mA lim)
0.18
VOUT LINE
%
IOUT
0.005A
=
Sleep
+/- 0.4
+/- 0.5
+/- 0.5
Load Regulation
Quiescent Current
Shutdown current
IOUT = 1mA to 500mA
Active
Standby
Sleep
+/- 0.5
+/- 0.2
+/- 0.3
318
VOUT LOAD
IOUT = 0A to 0.05A
%
IOUT = 0A to 0.010A
IQ ACTIVE
IQ STANDBY
IQ SLEEP
ISD
Active ( excluding switching losses)
Standby (excluding switching losses)
Sleep
120
μA
25
0.01
0.29
μA
P-channel On
Resistance
RDSP
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
Ω
N-channel On
Resistance
RDSN
ILXP
ILXN
fSW
0.2
0.02
1.4
Ω
μA
P-channel
leakage current
N-channel
leakage current
μA
Switching
2.0
MHz
Frequency
PD, February 2011, Rev 4.4
20
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
