Ultra low dropout, 500mA, CMOS LDO
The WL2803E series are ultra low dropout, Low
quiescent current, high PSRR CMOS LDO. The
dropout voltage is 130mV (Typ.) at 500mA load
Using CMOS construction, the quiescent current
consumed by the WL2803E is typically 150uA over the
entire input voltage range, making it attractive for
consumer, networking applications that demand high
output current. The WL2803E series are available in
wide output voltage range version from 1.2V to 3.3V
with 0.1V step.
The WL2803E series offer thermal shutdown (OTP)
and current limit functions, to assure the stability of
chip and power system at wrong condition, and it uses
trimming technique to guarantee output voltage
accuracy within ±2%.
VIN GND EN
Pin Configuration (Top View)
The WL2803E regulators are available in SOT-23-5L
packages. Standard products are Pb-free and
Output voltage : 1.2V, 1.8V, 3.3V
(Or upon request)
Output current : 500mA
: 65dB @ 1KHz
Dropout voltage : 130mV @ IOUT=0.5A
Quiescent current : 150μA Typ.
WS = Device code
** = Voltage code (33: 3.3V)
YY = Year code
WW = Week code
For detail information, Please refer to page 9.
Computer, Graphic card
Network communication equipments
Others portable electronics devices
Will Semiconductor Ltd.
1 May. 2014 – Rev1.6