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Will Semiconductor

WL2003E Datasheet Preview

WL2003E Datasheet

RF LDO

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WL2003E
300mA, Low noise, High PSRRˈRF LDO
Descriptions
The WL2003E series are 300mA low dropout
linear regulators and optimized to provide a high
performance solution for battery power system to
deliver low quiescent current. The WL2003E series are
designed for portable RF and wireless applications to
deliver ultra low output noise and high PSRR. The
devices offer a new level of cost effective performance
in cellular phones, laptop and notebook computers,
and other portable devices.
The WL2003E series are designed to make use of
low cost ceramic capacitors which ensure the stability
of the output current, and enhance the efficiency in
order to prolong the battery life of those portable
devices.
The WL2003E regulators are available in standard
SOT-23-5L package. Standard products are Pb-free
and Halogen-free
Features
z Input voltage
: 2.5V ~ 5.5V
z Output voltage
: 1.2V ~ 3.3V
z Output current
: 300mA
z PSRR
: 70dB @ 1KHz
z Output noise
: 100uV
z Quiescent current
: 120ȝA
z Shut-down current
: < 0.1ȝA
z Dropout voltage
: 120mV
z Recommend capacitor
: 1uF
z Operating Temperature : -40 ~ +85 °C
z Over current/over temperature protection
Applications
z MP3/MP4 Players
z Cellphones, radiophone, digital cameras
z Bluetooth, wireless handsets
z Others portable electronics device
WL2003E
Http://www.willsemi.com
SOT-23-5L
VOUT
NC
54
1
23
VIN GND EN
Pin Configuration (Top View)
****
For detail marking information, please see page 7.
Marking
Order Informations
For detail order information, please see page 7.
Will Semiconductor Ltd. 1 May. 2010 – Rev2.0
Free Datasheet http://www.datasheet4u.com/




Will Semiconductor

WL2003E Datasheet Preview

WL2003E Datasheet

RF LDO

No Preview Available !

Typical Applications
VIN
1uF
ON
OFF
15
2
34
VOUT
1uF
Pin Descriptions
WL2003E
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
OTP
GND
VOUT
Will Semiconductor Ltd. 2 May. 2010 – Rev2.0


Part Number WL2003E
Description RF LDO
Maker Will Semiconductor
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