WL2810
WL2810
Low noise, High PSRR, High speed, CMOS
LDO
Http://www.sh-willsemi.com
Descriptions
The WL2810 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
SOT-353
DFN1X1-4L
notebook computers, and other portable devices.
The WL2810 has the fold-back maximum output
current which depends on the output voltage. So the
current limit functions both as a short circuit protection
and as an output current limiter.
The WL2810 regulators are available in standard
SOT-353 package and DFN1x1-4L Package. Standard
products are Pb-free and Halogen-free.
Pin Configuration (Top View)
Features
Input voltage
: 2.2V~5.5V
Output range
: 1.0V~3.3V
Output current
: 300mA
PSRR
: 70dB @ 217Hz
Dropout voltage
: 250mV @ IOUT=300mA
Quiescent current : 42μA Typ.
Shut-down current : < 1μA
Recommend capacitor : 1uF
B*M
B : Package Code
D: Package Code
* : Voltage Code
* : Voltage Code
M: Month(A~Z)
Y : Year Code
W: Week Code
For detail marking information, please see page 10.
Applications
MP3/MP4 Players
Cellphones, radiophone, digital cameras
Bluetooth, wireless handsets
Others portable electronics device
Marking
Order Information
For detail order information, please see page 10.
Will Semiconductor Ltd.
1
Aug, 2017 – Rev 1.9
WL2810
Typical Application
Pin Description
SOT-353
PIN
Symbol
Description
1
VIN
Input
2
GND
Ground
3
EN
Enable (Active high)
4
NC
Not connected
5
VOUT
Output
DFN1X1-4L
PIN
Symbol
1
VOUT
Output
2
GND
Ground
3
EN
Enable (Active high)
4
VIN
Input
EP
Description
GND level, this pin must
connect to GND.
Block Diagram
Will Semiconductor Ltd.
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Aug, 2017 – Rev 1.9
WL2810
Absolute Maximum Ratings
Parameter
Value
Power Dissipation, PD@TA=25℃
400
VIN Range
-0.3~6.5
V
VEN Range
-0.3~VIN
V
VOUT Range
-0.3~VIN
V
IOUT
400
Lead Temperature Range
260
o
Storage Temperature Range
-55 ~ 150
o
Operating Junction Temperature Range
150
o
ESD Ratings
Unit
mW
mA
C
C
C
HBM
8000
V
MM
400
V
Recommend Operating Ratings
Parameter
Value
Operating Supply voltage
2.2~5.5
Operating Temperature Range
-40~85
Thermal Resistance, RθJA (SOT-353)
250
o
Thermal Resistance, RθJA (DFN1x1-4L)
250
o
Will Semiconductor Ltd.
3
Unit
V
C
o
C/W
C/W
Aug, 2017 – Rev 1.9
WL2810
Electronics Characteristics (Ta=25oC, VIN=VOUT+1V, CIN=COUT=1uF, unless otherwise noted)
Parameter
Symbol
Condition
VOUT ≤1.5V, VIN=2.7V, IOUT=1mA
Output Voltage
VOUT
VOUT>1.5V, IOUT=1mA
Current Limit
Dropout Voltage
ILIM
VDROP
VEN=VIN
Min.
0.97
VOUT
0.98
VOUT
Typ.
VOUT
VOUT
Max.
Unit
1.03
VOUT
1.02
V
VOUT
300
mA
VOUT=3.3V, IOUT=300mA
220
330
VOUT=3.0V, IOUT=300mA
240
360
VOUT=2.8V, IOUT=300mA
250
375
VOUT=2.5V, IOUT=300mA
280
420
VOUT=1.8V, IOUT=300mA
400
600
VOUT≤1.5V, IOUT=300mA
Vin-min=2.2V
0.01
0.1
%/V
mV
Line Regulation
△VLINE
VIN=2.7~5.5V, IOUT=1mA
Load Regulation
△VLoad
VOUT=2.8V , IOUT=1~300mA
10
30
mV
Quiescent Current
IQ
VOUT=2.8V, IOUT=0
42
70
μA
Short Current
ISHORT
VEN=VIN, VOUT Short to GND with 1Ω
80
Shut-down Current
ISHDN
VEN=0V
1.0
VIN=(VOUT+1V)DC+0.5VP-P
Power Supply Rejection Rate
PSRR
mA
μA
70
F=217Hz ,Iout=10mA
dB
VIN=(VOUT+1V)DC+0.5VP-P
60
F=10KHz, Iout=10mA
EN logic high voltage
VENH
VIN=5.5V, IOUT=1mA
EN logic low voltage
VENL
VIN=5.5V, VOUT=0V
0.4
V
EN Input Current
IEN
VEN= 0 to 5.5V
1.0
μA
Output Noise Voltage
eNO
10Hz to 100KHz, COUT=1μF
Thermal shutdown threshold
TSD
Thermal shutdown hysteresis
Will Semiconductor Ltd.
△ TSD
4
1.2
V
55
μVRMS
C
165
o
30
o
C
Aug, 2017 – Rev 1.9
WL2810
Typical characteristics (Ta=25oC, VIN=3.8V, VOUT = 2.8V CIN=COUT=1uF, unless otherwise noted)
Quiescent current vs. Supply voltage
Quiescent current vs. Supply voltage
Output voltage vs. Supply voltage
Output voltage vs. Supply voltage
Output voltage vs. Output current
Will Semiconductor Ltd.
Output voltage vs. Output current
5
Aug, 2017 – Rev 1.9
WL2810
Output Voltage vs. Temperature
Output Voltage vs. Temperature
Dropout Voltage vs. Output Current
Will Semiconductor Ltd.
PSRR
6
Aug, 2017 – Rev 1.9
WL2810
Soft Start form EN
Soft Start form EN
EN Shutdown
EN Shutdown
Load Step
Load Step
Line Step
Will Semiconductor Ltd.
Line Step
7
Aug, 2017 – Rev 1.9
WL2810
PACKAGE OUTLINE DIMENSIONS
SOT-353
D
θ
e
L1
E
E1
L
e1
C
b
0.2
SIDE VIEW
A
A2
A1
TOP VIEW
SIDE VIEW
Dimensions in Millimeters
Symbol
Min.
Typ.
Max.
A
0.85
-
1.10
A1
0.00
-
0.10
A2
0.80
0.90
1.00
b
0.15
0.25
0.35
c
0.08
-
0.15
D
2.00
2.10
2.20
E
1.15
1.25
1.35
E1
2.15
2.30
2.45
e
0.65 Typ.
e1
1.20
1.30
L
1.40
0.50 Ref.
L1
0.26
0.36
0.46
θ
0︒
-
8︒
Recommend PCB Layout (Unit: mm)
0.65
0.80
0.40
Notes:
1.94
This recommended land pattern is for reference
purposes only. Please consult your manufacturing
group to ensure your PCB design guidelines are met.
1.30
Will Semiconductor Ltd.
8
Aug, 2017 – Rev 1.9
WL2810
TAPE AND REEL INFORMATION
Reel Dimensions
RD
Reel Dimensions
Tape Dimensions
W
P1
Quadrant Assignments For PIN1 Orientation In Tape
Q1
Q2
Q1
Q2
Q3
Q4
Q3
Q4
User Direction of Feed
RD
Reel Dimension
7inch
13inch
W
Overall width of the carrier tape
8mm
12mm
P1
Pitch between successive cavity centers
2mm
4mm
8mm
Pin1
Pin1 Quadrant
Q1
Q2
Q3
Will Semiconductor Ltd.
9
Q4
Aug, 2017 – Rev 1.9
WL2810
Packaging Information
DFN1x1-4L
Dimensions In Millimeters
Symbol
Min.
Typ.
Max.
A
0.34
0.37
0.40
A1
0.00
0.02
0.105
A3
0.10 REF
b
0.17
0.22
0.27
D
0.95
1.00
1.05
E
0.95
1.00
1.05
D2
0.43
0.48
0.53
E2
0.43
0.48
0.53
L
0.20
0.25
0.30
e
0.60
0.65
0.70
K
0.15
-
-
Will Semiconductor Ltd.
10
Aug, 2017 – Rev 1.9
WL2810
TAPE AND REEL INFORMATION
Reel Dimensions
RD
Reel Dimensions
Tape Dimensions
W
P1
Quadrant Assignments For PIN1 Orientation In Tape
Q1
Q2
Q1
Q2
Q3
Q4
Q3
Q4
RD
Reel Dimension
W
Overall width of the carrier tape
P1
Pitch between successive cavity centers
Pin1
Pin1 Quadrant
Will Semiconductor Ltd.
User Direction of Feed
7inch
13inch
1 8mm
12mm
16mm
2mm
4mm
8mm
Q1
Q2
Q3
11
Q4
Aug, 2017 – Rev 1.9
WL2810
ORDER INFORMATION
Ordering No.
Vout
(V)
Package
Operating
Temperature
Marking
WL2810B12-5/TR
1.2
SOT-353
-40~+85°C
BEM
WL2810B15-5/TR
1.5
SOT-353
-40~+85°C
BGM
WL2810B18-5/TR
1.8
SOT-353
-40~+85°C
BHM
WL2810B28-5/TR
2.8
SOT-353
-40~+85°C
BLM
WL2810B30-5/TR
3.0
SOT-353
-40~+85°C
BMM
WL2810B33-5/TR
3.3
SOT-353
-40~+85°C
BNM
WL2810D10-4/TR
1.0
DFN1x1-4L
-40~+85°C
WL2810D105-4/TR
1.05
DFN1x1-4L
-40~+85°C
WL2810D12-4/TR
1.2
DFN1x1-4L
-40~+85°C
WL2810D13-4/TR
1.3
DFN1x1-4L
-40~+85°C
WL2810D15-4/TR
1.5
DFN1x1-4L
-40~+85°C
WL2810D18-4/TR
1.8
DFN1x1-4L
-40~+85°C
WL2810D25-4/TR
2.5
DFN1x1-4L
-40~+85°C
WL2810D28-4/TR
2.8
DFN1x1-4L
-40~+85°C
WL2810D30-4/TR
3.0
DFN1x1-4L
-40~+85°C
WL2810D33-4/TR
3.3
DFN1x1-4L
-40~+85°C
Shipping
Tape and Reel,
3000
Tape and Reel,
3000
Tape and Reel,
3000
Tape and Reel,
3000
Tape and Reel,
3000
Tape and Reel,
3000
DB
Tape and Reel,
YW
10000
DC
Tape and Reel,
YW
10000
DE
Tape and Reel,
YW
10000
DF
Tape and Reel,
YW
10000
DG
Tape and Reel,
YW
10000
DH
Tape and Reel,
YW
10000
DK
Tape and Reel,
YW
10000
DL
Tape and Reel,
YW
10000
DM
Tape and Reel,
YW
10000
DN
Tape and Reel,
YW
10000
Marking:
B* = Device Code
D* = Device Code
M
= Month
Y
= Year
W
= Week
Will Semiconductor Ltd.
12
Aug, 2017 – Rev 1.9