WM8326
Production Data
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Current Limit
VOUT = 0V
ICL
230
mA
(Switch mode)
Start-up time
No load, Output cap 2.2 µF, 90% of VOUT
No load, Output cap 2.2 µF, 10% of VOUT
tstart_up
10
s
Shutdown time
tshut_down
10
ms
LDO7, LDO8
Unless otherwise noted: VIN = 3.8V, VOUT = 1.8V, TJ = -40°C to +125°C; Typical values are at TJ = +25ºC
PARAMETER
SYMBOL
VIN
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage
1.71
5.5
V
Programmable
Output Voltage
VOUT
1.0
3.5
V
VOUT Step Size
VOUT = 1.0V to 1.6V
VOUT_STEP
50
mV
VOUT = 1.7V to 3.5V
Normal mode
100
Output Current
IOUT
0
0
200
50
mA
Low Power mode
VOUT Accuracy
Line Regulation
I
LOAD = 1mA
IN = (VOUT + 0.5) to 5.5V, ILOAD = 100mA
Note that VIN must be >= 1.71V
VOUT_ACC
VOUT LINE
-2.5
+2.5
%
V
0.025
%/V
Load Regulation
Dropout Voltage
I
I
LOAD =1mA to 200mA
VOUT LOAD
VIN - VOUT
0.003
95
%/mA
mV
LOAD =100mA, VOUT =1.8V
ILOAD =100mA, VOUT =2.5V
ILOAD =100mA, VOUT =3.3V
65
60
Undervoltage
level
VOUT Falling
VOUT
IQ
93
%
Quiescent
Current
Normal mode, no load
Low Power mode, no load
ILOAD = 1mA to 200mA
110
70
A
IQ (no load) + 0.1% of load
Power Supply
Rejection Ratio
ILOAD = 100mA, <= 1kHz
PSRR
VOUT
70
67
dB
VRMS
m
ILOAD = 100mA, 10kHz
ILOAD = 100mA, 100kHz
48
Output noise
voltage
f=10Hz to 100kHz; VOUT=2.8V, ILOAD = 1mA
f=10Hz to 100kHz; VOUT=2.8V, ILOAD = 10mA
f=10Hz to 100kHz; VOUT=2.8V, ILOAD = 100mA
30
32
32
On Resistance
(Switch mode)
VIN = 1.71V, ILOAD = 100mA
RDSON
550
500
330
250
320
VIN = 1.8V, ILOAD = 100mA
VIN = 2.5V, ILOAD = 100mA
VIN = 3.5V, ILOAD = 100mA
Current Limit
VOUT = 0V
ICL
mA
(Switch mode)
Start-up time
No load, Output cap 4.7 µF, 90% of VOUT
No load, Output cap 4.7 µF, 10% of VOUT
tstart_up
50
s
Shutdown time
tshut_down
10
ms
LDO9, LDO10
Unless otherwise noted: VIN = 3.8V, VOUT = 1.8V, TJ = -40°C to +125°C; Typical values are at TJ = +25ºC
PARAMETER
SYMBOL
VIN
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage
1.71
5.5
V
Programmable
Output Voltage
VOUT
1.0
3.5
V
VOUT Step Size
VOUT = 1.0V to 1.6V
VOUT_STEP
50
mV
VOUT = 1.7V to 3.5V
Normal mode
100
Output Current
IOUT
0
0
150
50
mA
Low Power mode
PD, June 2012, Rev 4.0
20
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
