WL2004
Will Semiconductor Ltd. 1 May. 2010 – Rev1.4
WL2004
300mA, Low noise, High PSRR
ˈ
LDO
Descriptions
The WL2004 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 WL2004 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 WL2004 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 WL2004 regulators are available in
SOT-23-5L packages and SOT-23-3L package.
WL2004 series are Pb-free and Halogen free products.
Features
z Input voltage : 2.2V ~ 5.5V
z Output voltage : 1.2V ~ 3.3V
z Output current : 300mA
z PSRR : 70dB @ 1KHz
z Output noise : 100uV
z Quiescent current : 120A Typ.
z Shut-down current : < 0.1A
z Dropout voltage : 190mV @ 300mA
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 electronics devices
Http://www.willsemi.com
SOT-23-5L SOT-23-3L
Pin Configuration (Top View)
**** ****
For detail marking information please see page 8, 9.
Marking
Order Information
For detail order information please see page 8, 9.
VIN GND EN
NC
VOUT
23
4
5
1
VIN
GND VOUT
2
3
1
WL2004
Will Semiconductor Ltd. 2 May. 2010 – Rev1.4
Typical Application
Block Diagram
Pin Description
PIN Symbol Description
1 VIN Input
2 GND Ground
3 EN Enable (Active high)
4 NC Not connected
5 VOUT Output
PIN Symbol Description
1 GND Ground
2 VOUT Output
3 VIN Input
2
3 4
51
OFF
ON
VIN VOUT
1uF 1uF
VOUT
-
+
Vref
EN
OCP
OTP
VIN
EN
GND
3
1
2
VIN
VOUT
1uF
1uF
WL2004
Will Semiconductor Ltd. 3 May. 2010 – Rev1.4
Absolute Maximum Ratings
Operating Range
Electronics Characteristics
VIN = VEN=3.8V, CIN=1uF, TA=25°C
Parameter Value Unit
Power Dissipation 500 mW
VIN Range -0.36.5 V
VEN Range -0.3VIN V
VOUT Range -0.3VIN V
Lead Temperature Range 260 oC
Storage Temperature Range -65 ~ 150 oC
Operating Junction Temperature Range 150 oC
Parameter Value Unit
Thermal Resistance, RJA 250
oC/W
Operating Temperature Range -4085 oC
Parameter Symbol Condition Min. Typ. Max. Unit
1.170 1.200 1.230
1.270 1.300 1.330
1.470 1.500 1.530
1.764 1.800 1.836
2.450 2.500 2.550
2.744 2.800 2.856
2.940 3.000 3.060
Output Voltage Vout Vin=Vout+1V, Iout=270mA
3.234 3.300 3.366
V
Current Limit ILIM Vin = Vout+1V 400 500 mA
Iout=200mA, Vout=2.8V 120 200
Dropout Voltage VDROP
Iout=300mA, Vout=2.8V 190 300
mV
Line Regulation ƸVLine 3.3Vin6V, Iout=1mA 0.03 0.15 %/V
Load Regulation ƸVLoad Vin=3.8V, Iout = 1~ 300mA 0.8 %
Quiescent Current ,4VEN>1.2V, Iout=0 120 150 A
Shut-down Current ISHDN Vin=3.3V,EN=0V 0.1 1.0
A
F=100Hz ,Iout=10 mA,0.5Vpp 70
Power Supply Rejection Rate PSRR F=10KHz, Iout=10mA,0.5Vpp 67 dB
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 6V 0.1 A
Output Noise Voltage eNO 10Hz to 100KHz,
Iout=200mA, Cout=1F 100
VRMS
Thermal Shutdown Temperature TSD 165
ć
Thermal Shutdown Hysteresis TSD 30
ć
WL2004
Will Semiconductor Ltd. 4 May. 2010 – Rev1.4
Typical Performance Graph
Quiescent Current vs. Temperature
Output Voltage vs. Output Current
EN Shutdown Threshold vs. Temperature
Output Voltage vs. Temperature
PSRR vs. Frequency
Start Up
-50 0 50 100 150
2.6
2.7
2.8
2.9
VIN=3.8V,VOUT=2.8V,IOUT=0mA
Output Voltage(V)
Temperature(CO)
-50 0 50 100 150
40
80
120
160
VIN=3.8V,VOUT=2.8V,IOUT=0mA
Quiescent Current(uA)
Temperature(CO)
0 200 400 600
0.0
0.6
1.2
1.8
2.4
3.0
Output Current(mA)
VIN=VEN=3.8V,VOUT=2.8V
Output Voltage(V)
0.1 1 10
-72
-68
-64
-60
-56
VPP=0.2V
PSRR(dB)
Frequency(KHz)
VIN=3.8V,VOUT=2.8V,Iout=10mA
VPP=0.5V
-50 0 50 100 150
0.4
0.5
0.6
0.7
0.8
VIN=3.8V,VOUT=2.8V,IOUT=0mA
EN Shutdown Threshold(V)
Temperature(CO)
WL2004
Will Semiconductor Ltd. 5 May. 2010 – Rev1.4
Line Regulation
Load Regulation
Line Regulation
Load Regulation
Output Noise (VDD by Battery) Dropout Voltage vs. Output Current
0 50 100 150 200 250 300
0
40
80
120
160
200 Vout=3.3V
TA=-40oC
TA=85oC
TA=25oC
Dropout Voltage(mV)
Output Current(mA)
WL2004
Will Semiconductor Ltd. 6 May. 2010 – Rev1.4
Packaging Information
SOT-23-5L
Dimensions In Millimeters
Symbol Min. Max.
A 1.050 1.250
A1 0.000 0.100
A2 1.050 1.150
b 0.300 0.500
c 0.100 0.200
D 2.820 3.020
E 1.500 1.700
E1 2.650 2.950
e 0.950(Basic)
e1 1.800 2.000
L 0.300 0.600
0o 8
o
WL2004
Will Semiconductor Ltd. 7 May. 2010 – Rev1.4
SOT-23-3L
Dimensions In Millimeters
Symbol Min. Max.
A 1.050 1.250
A1 0.000 0.100
A2 1.050 1.150
b 0.300 0.500
c 0.100 0.200
D 2.820 3.020
E 1.500 1.700
E1 2.650 2.950
e 0.950(Basic)
e1 1.800 2.000
L 0.300 0.600
0o 8
o
WL2004
Will Semiconductor Ltd. 8 May. 2010 – Rev1.4
ORDER INFORMATION
Remark:
1. WL2004ExxG is halogen free product.
2. Marking:
WL** = Device Code
YY = Year
WW = Week
Ordering No. Vout
(V) Package Operating
Temperature Marking Shipping
WL2004E12-5/TR 1.2 SOT-23-5L -40~+85°C WL12
YYWW
Tape and Reel,
3000
WL2004E13-5/TR 1.3 SOT-23-5L -40~+85°C WL13
YYWW
Tape and Reel,
3000
WL2004E15-5/TR 1.5 SOT-23-5L -40~+85°C WL15
YYWW
Tape and Reel,
3000
WL2004E18-5/TR 1.8 SOT-23-5L -40~+85°C WL18
YYWW
Tape and Reel,
3000
WL2004E25-5/TR 2.5 SOT-23-5L -40~+85°C WL25
YYWW
Tape and Reel,
3000
WL2004E28-5/TR 2.8 SOT-23-5L -40~+85°C WL28
YYWW
Tape and Reel,
3000
WL2004E30-5/TR 3.0 SOT-23-5L -40~+85°C WL30
YYWW
Tape and Reel,
3000
WL2004E33-5/TR 3.3 SOT-23-5L -40~+85°C WL33
YYWW
Tape and Reel,
3000
WL2004E12G-5/TR 1.2 SOT-23-5L -40~+85°C WL12
YYWW
Tape and Reel,
3000
WL2004E13G-5/TR 1.3 SOT-23-5L -40~+85°C WL13
YYWW
Tape and Reel,
3000
WL2004E15G-5/TR 1.5 SOT-23-5L -40~+85°C WL15
YYWW
Tape and Reel,
3000
WL2004E18G-5/TR 1.8 SOT-23-5L -40~+85°C WL18
YYWW
Tape and Reel,
3000
WL2004E25G-5/TR 2.5 SOT-23-5L -40~+85°C WL25
YYWW
Tape and Reel,
3000
WL2004E28G-5/TR 2.8 SOT-23-5L -40~+85°C WL28
YYWW
Tape and Reel,
3000
WL2004E30G-5/TR 3.0 SOT-23-5L -40~+85°C WL30
YYWW
Tape and Reel,
3000
WL2004E33G-5/TR 3.3 SOT-23-5L -40~+85°C WL33
YYWW
Tape and Reel,
3000
WL2004
Will Semiconductor Ltd. 9 May. 2010 – Rev1.4
Remark:
3. WL2004NxxG is halogen free product.
4. Marking:
W = Device Code
12 = Voltage Code
* = Month code (A~Z)
Ordering No. Vout
(V) Package Operating
Temperature Marking Shipping
WL2004N12-3/TR 1.2 SOT-23-3L -40~+85°C W12*
Tape and Reel,
3000
WL2004N13-3/TR 1.3 SOT-23-3L -40~+85°C W13*
Tape and Reel,
3000
WL2004N15-3/TR 1.5 SOT-23-3L -40~+85°C W15*
Tape and Reel,
3000
WL2004N18-3/TR 1.8 SOT-23-3L -40~+85°C W18*
Tape and Reel,
3000
WL2004N25-3/TR 2.5 SOT-23-3L -40~+85°C W25*
Tape and Reel,
3000
WL2004N28-3/TR 2.8 SOT-23-3L -40~+85°C W28*
Tape and Reel,
3000
WL2004N30-3/TR 3.0 SOT-23-3L -40~+85°C W30*
Tape and Reel,
3000
WL2004N33-3/TR 3.3 SOT-23-3L -40~+85°C W33*
Tape and Reel,
3000
WL2004N12G-3/TR 1.2 SOT-23-3L -40~+85°C W12*
Tape and Reel,
3000
WL2004N13G-3/TR 1.3 SOT-23-3L -40~+85°C W13*
Tape and Reel,
3000
WL2004N15G-3/TR 1.5 SOT-23-3L -40~+85°C W15*
Tape and Reel,
3000
WL2004N18G-3/TR 1.8 SOT-23-3L -40~+85°C W18*
Tape and Reel,
3000
WL2004N25G-3/TR 2.5 SOT-23-3L -40~+85°C W25*
Tape and Reel,
3000
WL2004N28G-3/TR 2.8 SOT-23-3L -40~+85°C W28*
Tape and Reel,
3000
WL2004N30G-3/TR 3.0 SOT-23-3L -40~+85°C W30*
Tape and Reel,
3000
WL2004N33G-3/TR 3.3 SOT-23-3L -40~+85°C W33*
Tape and Reel,
3000