WL2003E.pdf 데이터시트 (총 7 페이지) - 파일 다운로드 WL2003E 데이타시트 다운로드

No Preview Available !

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/

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

No Preview Available !

Absolute Maximum Ratings
Parameter
Power Dissipation
VIN Range
VEN Range
VOUT Range
Lead Temperature Range
Storage Temperature Range
Operating Junction Temperature Range
ESD Rating (HBM)
ESD Rating (MM)
ESD Rating (CDM)
WL2003E
Value
500
-0.3̚6.5
-0.3̚VIN
-0.3̚VIN
260
-55 ~ 150
150
±8000
±1000
±4000
Unit
mW
V
V
V
oC
oC
oC
V
V
V
Recommend Operating Ratings
Parameter
Thermal Resistance, RșJA
Operating Temperature Range
Value
250
-40̚85
Unit
oC/W
oC
Electronics Characteristics (TA=25°C, VIN =VOUT+1V, CIN=COUT=1uF, Unless otherwise noted)
Parameter
Symb
Condition
Min. Typ. Max. Unit
ol
Output Voltage Accuracy
Current Limit
VOUT
ILIM
VOUT < =1.5V
VOUT > 1.5V
VIN = Vout+1V
±30
±2
400
mV
%
mA
Dropout Voltage
VDROP
IOUT=200mA, Vout=2.8V
IOUT=300mA, Vout=2.8V
120 200
mV
190 300
Line Regulation
ƸVLINE VIN=2.5~5.5V, IOUT=1mA
0.03 0.15 %/V
Load Regulation
ƸVLoad VIN=3.8V, IOUT = 1~ 300mA
22 30 mV
Quiescent Current
Shut-down Current
IQ
ISHDN
VEN>1.2V, OUT=0
VIN=3.3V,EN=0V
120 150 uA
0.1 1.0 uA
Power Supply Rejection Rate
PSRR
F=100Hz ,IOUT=10 mA,0.5Vpp
F=10KHz, IOUT=10mA,0.5Vpp
70
dB
67
EN logic high voltage
VENH
VIN=VOUT+1V, Start-up
1.2
V
EN logic low voltage
VENL
VIN=VOUT+1V, Shutdown
0.4 V
EN Input Current
IEN VEN= 0 to 5V
1.0 uA
Output Noise Voltage
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
eNO
TSD
ǻTSD
10Hz to 100KHz, IOUT=200mA,
COUT=1uF
100 uVp-p
165 oC
30 oC
Will Semiconductor Ltd. 3 May. 2010 – Rev2.0

No Preview Available !

Typical Characteristics
180
V =3.8V,V =2.8V,I =0mA
IN
OUT
OUT
160
140
120
100
80
-50
0 50 100
Temperature(CO)
150
Quiescent Current vs. Temperature
WL2003E
2.9
V =3.8V,V =2.8V,I =0mA
IN
OUT
OUT
2.8
2.7
2.6
-50 0
50 100
Temperature(CO)
Output Voltage vs. Temperature
150
3.0
2.4 V =V =3.8V,V =2.8V
IN EN
OUT
1.8
1.2
0.6
0.0
0
200 400 600
Output Current(mA)
Output Voltage vs. Output Current
0.8
V =3.8V,V =2.8V,I =0mA
IN
OUT
OUT
0.7
V =3.8V,V =2.8V,I =10mA
-56 IN
OUT
out
-60
V =0.2V
PP
-64
V =0.5V
-68 PP
-72
0.1 1
Frequency(KHz)
PSRR vs. Frequency
10
0.6
0.5
0.4
-50
0 50 100
Temperature(CO)
150
EN Shutdown Threshold vs. Temperature
Will Semiconductor Ltd.
4
Start Up
May. 2010 – Rev2.0

No Preview Available !

WL2003E
Line Regulation
Line Regulation
Load Regulation
Load Regulation
Will Semiconductor Ltd.
Output Noise (VDD by Battery)
5
May. 2010 – Rev2.0