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WillSEMI |
WL2808E
Low noise, High PSRR, High speed, CMOS LDO
Descriptions
The WL2808E series is a high accuracy, low noise,
high speed, low dropout CMOS Linear regulator with
high ripple rejection. The devices offer a new level of
cost effective performance in cellular phones, laptop
and notebook computers, and other portable devices.
The current limiter's fold-back circuit also operates as
a short circuit protection and an output current limiter
at the output pin.
The WL2808E regulators are available in standard
SOT-23-5L packages. Standard products are Pb-free
and Halogen-free.
Features
Input voltage
: 2.5V~5.5V
Output range
: 1.2V~3.3V
Output current : 200mA (@VOUT<2V)(Typ.)
PSRR
300mA (@VOUT>2V)(Typ.)
: 75dB @ 217Hz
Dropout voltage : 170mV @ IOUT=200mA
Quiescent current : 30μA Typ.
Shut-down current : < 1μA
Recommend capacitor : 1uF
Applications
MP3/MP4 Players
Cellphones, radiophone, digital cameras
Bluetooth, wireless handsets
Others portable electronics device
WL2808E
Http://www.sh-willsemi.com
SOT-23-5L
Pin Configuration (Top View)
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For detail marking information, please see page 8.
Marking
Order Information
For detail order information, please see page 8.
Will Semiconductor Ltd. 1 Mar, 2017 – Rev.1.6
Typical Application
VIN
1uF
ON
OFF
15
2
34
VOUT
1uF
Pin Description
WL2808E
PIN Symbol Description
1 VIN Input
2 GND Ground
3 EN Enable (Active high)
4 NC Not connected
5 VOUT Output
Block Diagram
VIN
EN
Current
Limit
VREF
Enable
Control
GND
VOUT
Will Semiconductor Ltd. 2 Mar, 2017 – Rev.1.6
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