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WL2808E25-5/TR [WILLSEMI]

Low noise, High PSRR, High speed, CMOS LDO;
WL2808E25-5/TR
型号： WL2808E25-5/TR
厂家： WILLSEMI    WILLSEMI
描述：

Low noise, High PSRR, High speed, CMOS LDO
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WL2808E  
WL2808E  
Http://www.sh-willsemi.com  
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.  
SOT-23-5L  
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  
Output range  
Output current  
: 2.5V~5.5V  
Pin Configuration (Top View)  
: 1.2V~3.3V  
: 200mA (@VOUT<2V)(Typ.)  
300mA (@VOUT>2V)(Typ.)  
: 75dB @ 217Hz  
****  
PSRR  
****  
Dropout voltage : 170mV @ IOUT=200mA  
Quiescent current : 30μA Typ.  
Shut-down current : < 1μA  
For detail marking information, please see page 8.  
Recommend capacitor : 1uF  
Marking  
Applications  
MP3/MP4 Players  
Cellphones, radiophone, digital cameras  
Bluetooth, wireless handsets  
Order Information  
For detail order information, please see page 8.  
Others portable electronics device  
Will Semiconductor Ltd.  
1
Mar, 2017 – Rev.1.6  
WL2808E  
Typical Application  
Pin Description  
PIN Symbol Description  
VIN  
1uF  
VOUT  
1
2
3
5
4
1
2
3
4
5
VIN  
GND  
EN  
Input  
1uF  
Ground  
Enable (Active high)  
Not connected  
Output  
NC  
ON  
VOUT  
OFF  
Block Diagram  
VOUT  
VIN  
Current  
Limit  
VREF  
Enable  
Control  
EN  
GND  
Will Semiconductor Ltd.  
2
Mar, 2017 – Rev.1.6  
WL2808E  
Absolute Maximum Ratings  
Parameter  
Value  
Unit  
mW  
V
Power Dissipation  
Internal limited  
-0.3～6.5  
-0.3～VIN  
-0.3～VIN  
260  
VIN Range  
VEN Range  
V
VOUT Range  
V
Lead Temperature Range  
Storage Temperature Range  
Operating Junction Temperature Range  
oC  
oC  
oC  
-55 ~ 150  
150  
Recommend Operating Ratings  
Parameter  
Value  
Unit  
V
oC  
Operating Supply voltage  
Operating Temperature Range  
Thermal Resistance, RθJA  
2.5～5.5  
-40～85  
250  
oC/W  
Electronics Characteristics (Ta=25oC, VIN=VOUT+1V, CIN=COUT=1uF, unless otherwise noted)  
Parameter  
Symbol  
Condition  
Min.  
0.97  
VOUT  
0.98  
VOUT  
Typ.  
Max.  
1.03  
VOUT  
1.02  
VOUT  
Unit  
VOUT <2V, VIN=2.7V, IOUT=1mA  
VOUT  
Output Voltage  
VOUT  
V
VOUT  
V
OUT≧2V, IOUT=1mA  
Ref. to Output Voltage vs.  
Output Current Chart  
Current Limit  
ILIM  
VEN=VIN  
mA  
mV  
VOUT=2.8V, IOUT=200mA  
VOUT=2.8V, IOUT=300mA  
VIN=2.7~5.5V, IOUT=1mA  
VOUT=2.8V , IOUT=1~300mA  
VOUT=2.8V, IOUT=0  
170  
250  
0.01  
20  
200  
300  
0.15  
35  
Dropout Voltage  
VDROP  
Line Regulation  
Load Regulation  
Quiescent Current  
△VLINE  
△VLoad  
IQ  
%/V  
mV  
μA  
30  
50  
VEN=VIN,  
Short Current  
ISHORT  
ISHDN  
90  
mA  
VOUT Short to GND with 1Ω  
VEN=0V  
Shut-down Current  
1.0  
μA  
VIN=(VOUT+1V)DC+0.5VP-P  
F=217Hz ,Iout=10mA  
VIN=(VOUT+1V)DC+0.5VP-P  
F=10KHz, Iout=10mA  
VIN=5.5V, IOUT=1mA  
VIN=5.5V, VOUT=0V  
75  
65  
Power Supply Rejection Rate  
PSRR  
dB  
EN logic high voltage  
EN logic low voltage  
EN Input Current  
VENH  
VENL  
IEN  
1.2  
V
V
0.4  
1.0  
VEN= 0 to 5.5V  
μA  
Output Noise Voltage  
eNO  
100  
10Hz to 100KHz, COUT=1μF  
μVRMS  
Will Semiconductor Ltd.  
3
Mar, 2017 – Rev.1.6  
WL2808E  
Typical characteristics (Ta=25oC, VIN=3.8V, VOUT = 2.8V CIN=COUT=1uF, unless otherwise noted)  
40  
35  
30  
25  
20  
15  
10  
5
40  
35  
30  
25  
20  
15  
10  
5
VOUT=2.8V  
IO =0mA  
VOUT=1.2V  
IO =0mA  
0
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
Input Voltage(V)  
Input Voltage(V)  
Quiescent current vs. Supply voltage  
Quiescent current vs. Supply voltage  
1.6  
3.0  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0.0  
2.8  
2.6  
2.4  
2.2  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
VOUT=2.8V  
IO = 1mA  
VOUT=1.2V  
IO=1mA  
IO=200mA  
IO = 200mA  
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5  
Input Voltage(V)  
Input Voltage(V)  
Output voltage vs. Supply voltage  
Output voltage vs. Supply voltage  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
1.4  
o
TA = -40 C  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
o
TA = -40 C  
VOUT=2.8V  
VIN=3.8V  
VIN=5V  
VOUT=1.2V  
VIN=2.5V  
VIN=5V  
0
50 100 150 200 250 300 350 400 450  
Output Current(mA)  
0
50 100150200250300350400450500550600  
Output Current(mA)  
Output voltage vs. Output current  
Output voltage vs. Output current  
Will Semiconductor Ltd.  
4
Mar, 2017 – Rev.1.6  
WL2808E  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
o
TA = 25 C  
o
TA = 25 C  
VOUT=1.2V  
VIN=2.5V  
VIN=5V  
VOUT=2.8V  
VIN=3.8V  
VIN=5V  
0
50  
100 150 200 250 300 350  
Output Current(mA)  
0
50 100 150 200 250 300 350 400 450 500  
Output Current(mA)  
Output Voltage vs. Output Current  
Output Voltage vs. Output Current  
1.4  
3.0  
o
TA = 85 C  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0.0  
o
TA = 85 C  
VOUT=2.8V  
VIN=3.8V  
VIN=5V  
VOUT=1.2V  
VIN=2.5V  
VIN=5V  
0
50 100 150 200 250 300 350 400  
Output Current(mA)  
0
50  
100  
150  
200  
250  
300  
Output Current(mA)  
Output Voltage vs. Output Current  
Output Voltage vs. Output Current  
0.800  
0.795  
0.790  
0.785  
0.780  
0.775  
0.770  
0.765  
0.760  
350  
300  
250  
200  
150  
100  
50  
IOUT=1mA  
0
3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00  
Input Voltage(V)  
0
30 60 90 120 150 180 210 240 270 300  
Output Current(mA)  
Dorpout Voltage vs. Output Current  
ENH Voltage vs. Supply Voltage  
Will Semiconductor Ltd.  
5
Mar, 2017 – Rev.1.6  
WL2808E  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
VIN=3.0VDC+0.5VP-PAC  
VOUT=1.2V,IO=10mA  
10  
100  
1000  
10000  
Frequency(HZ)  
PSRR  
Start Up  
Shutdown  
Load Step  
Line Step  
Will Semiconductor Ltd.  
6
Mar, 2017 – Rev.1.6  
WL2808E  
ORDER INFORMATION  
Vout  
(V)  
Operating  
Ordering No.  
WL2808E12-5/TR  
WL2808E15-5/TR  
WL2808E18-5/TR  
WL2808E25-5/TR  
WL2808E28-5/TR  
WL2808E30-5/TR  
WL2808E33-5/TR  
Package  
SOT-23-5L  
SOT-23-5L  
SOT-23-5L  
SOT-23-5L  
SOT-23-5L  
SOT-23-5L  
SOT-23-5L  
Marking  
Shipping  
Temperature  
WL12  
EYWW  
WLBF  
EYWW  
WLBJ  
EYWW  
WLCF  
EYWW  
WL28  
Tape and Reel,  
3000  
1.2  
1.5  
1.8  
2.5  
2.8  
3.0  
3.3  
-40~+85°C  
Tape and Reel,  
3000  
-40~+85°C  
-40~+85°C  
-40~+85°C  
-40~+85°C  
-40~+85°C  
-40~+85°C  
Tape and Reel,  
3000  
Tape and Reel,  
3000  
Tape and Reel,  
3000  
EYWW  
WLDA  
EYWW  
WLDD  
EYWW  
Tape and Reel,  
3000  
Tape and Reel,  
3000  
Marking:  
WL**  
Y
= Device Code  
= Year  
Will Semiconductor Ltd.  
7
Mar, 2017 – Rev.1.6  
WL2808E  
PACKAGE OUTLINE DIMENSIONS  
SOT-23-5L  
Dimensions in Millimeters  
Symbol  
Min.  
-
Typ.  
Max.  
1.45  
0.15  
1.30  
0.50  
0.21  
3.05  
3.00  
1.80  
A
A1  
A2  
b
-
0.00  
0.90  
0.30  
0.10  
2.72  
2.60  
1.40  
-
1.10  
0.40  
c
-
D
-
E
2.80  
E1  
e
1.60  
0.95 BSC  
0.95 BSC  
-
e1  
L
0.30  
0.60  
θ
8︒ Ref.  
Will Semiconductor Ltd.  
8
Mar, 2017 – Rev.1.6  
WL2808E  
TAPE AND REEL INFORMATION  
Reel Dimensions  
Tape Dimensions  
P1  
Quadrant Assignments For PIN1 Orientation In Tape  
Q1 Q2  
Q3  
Q1 Q2  
Q3  
Q4  
Q4  
User Direction of Feed  
RD  
W
Reel Dimension  
7inch  
8mm  
2mm  
Q1  
13inch  
Overall width of the carrier tape  
Pitch between successive cavity centers  
12mm  
4mm  
Q2  
16mm  
8mm  
Q3  
P1  
Q4  
Pin1 Pin1 Quadrant  
Will Semiconductor Ltd.  
9
Mar, 2017 – Rev.1.6  

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