WL2836D
WL2836D
Low noise, High PSRR, High speed, CMOS
LDO
Http://www.sh-willsemi.com
Descriptions
The WL2836D series is a high accuracy, low noise,
high speed, high PSRR, low dropout CMOS Linear
regulator with high ripple rejection. The devices offer a
DFN1x1-4L
new level of cost effective performance in cellular
phones, laptop and notebook computers, and other
portable devices.
The WL2836D 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 WL2836D regulators are available in standard
Pin Configuration (Top View)
DFN1x1-4L Package. Standard products are Pb-free
and Halogen-free.
Features
Input Voltage Range
:1.4V~5.5V
Output Voltage Range
: 0.9V~3.3V
Output current
Quiescent current
: 50μA Typ.
Shut-down current
: < 1μA
Dropout voltage
PSRR
Low Output Voltage Noise
Output Voltage Tolerance
Recommend capacitor
Thermal-Overload and Short-Circuit Protection
I : Device Code
: 300mA
* : Voltage Code
Y : Year Code
W: Week Code
: 140mV @ IOUT=0.3A
: 78dB @ 1kHz, VOUT=1.8V
For detail marking information, please see page 14.
Marking
: 13×VOUT μVRMS
:±1% @ VOUT>2V
: 1μF
Order Information
Applications
For detail order information, please see page 14.
MP3/MP4 Players
Cellphones, radiophone, digital cameras
Bluetooth, wireless handsets
Others portable electronics device
Will Semiconductor Ltd.
1
Apr, 2021 – Rev 1.9
WL2836D
Typical Application
Pin Description
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.
2
Apr, 2021 – Rev 1.9
WL2836D
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
Internally Limited
Lead Temperature Range
260
o
Storage Temperature Range
-55 ~ 150
o
Operating Junction Temperature Range
150
o
MSL
Level-1
ESD Ratings
Unit
mW
C
C
C
HBM
7500
V
MM
300
V
Recommend Operating Ratings
Parameter
Value
Operating Supply voltage
1.4~5.5
Operating Temperature Range
-40~85
Thermal Resistance, RθJA (DFN1x1-4L)
250
Will Semiconductor Ltd.
3
Unit
V
C
o
C/W
o
Apr, 2021 – Rev 1.9
WL2836D
Electronics Characteristics
(Ta=25oC, VIN=VOUT+1V, CIN=COUT=1μF, IOUT=1mA,unless otherwise noted)
Parameter
Symbol
Condition
VOUT ≤2V
Output Voltage
VOUT
Input Voltage
VIN
Current Limit
ILIM
Dropout Voltage
VDROP
Min.
Typ.
Max.
Unit
-20
VOUT
+20
mV
0.99×
VOUT>2V
VOUT
VOUT
1.4
VEN=VIN
1.01×
V
VOUT
5.5
300
V
mA
VOUT=3.3V, IOUT=300mA
118
185
VOUT=3V, IOUT=300mA
122
192
VOUT=2.8V, IOUT=300mA
130
204
VOUT=2.5V, IOUT=300mA
140
220
VOUT=1.6V, IOUT=300mA
205
320
VOUT=1V, IOUT=300mA
370
555
mV
Line Regulation
△VLINE
VIN=VOUT+0.5V~5.5V
1
5
mV
Load Regulation
△VLoad
IOUT=1~300mA
15
28
mV
Quiescent Current
IQ
VOUT=2.8V, IOUT=0
50
90
μA
Short Current
ISHORT
VEN=VIN, VOUT Short to GND
120
Shut-down Current
ISHDN
VEN=0V
1.0
VIN=(VOUT+1V)DC+
Power Supply Rejection Rate
PSRR
mA
0.5VP-P
IOUT=10mA,
VOSET=1.8V
μA
f=100Hz
80
dB
f=1kHz
78
dB
f=10kHz
65
dB
f=100kHz
56
dB
f=1MHz
43
dB
EN logic high voltage
VENH
VIN=5.5V, IOUT=1mA
EN logic low voltage
VENL
VIN=5.5V, VOUT=0V
EN Input Current
IEN
VEN= 0 to 5.5V
Output Noise Voltage
eNO
10Hz to 100KHz, COUT=1μF
Thermal shutdown threshold
TSD
160
℃
Thermal shutdown hysteresis
△ TSD
30
℃
120
Ω
Auto-discharge Nch Tr, ON
Resistance
Will Semiconductor Ltd.
RLOW
1
V
0.4
120
VIN=4V, VCE=0V, VOUT=2.8V
4
13×
VOUT
V
nA
μVRMS
Apr, 2021 – Rev 1.9
Typical characteristics (Ta=25oC, VIN=VOUT+1V, IOUT=1mA,CIN=COUT=1μF, unless otherwise noted)
VOUT=1.2V
VOUT=1.8V
VOUT=2.8V
Will Semiconductor Ltd.
5
Apr, 2021 – Rev 1.9
VOUT=1.8V
Quiescent Current(uA)
50
48
46
VIN=EN=2.8V
IO=0mA
44
-40
-20
0
20
40
60
80
100
120
140
o
Temperature(C )
Quiescent Current vs. Temperature
VOUT=1.8V
VOUT=2.8V
VOUT=3.3V
160
160
140
140
Dropout Voltage (mV)
Dropout Voltage (mV)
VOUT=3.0V
120
100
80
60
40
VOUT*0.98
20
0
0
50
100
150
200
250
100
80
60
40
VOUT*0.98
20
0
300
Output Current (mA)
Dropout Voltage vs.Output Current
Will Semiconductor Ltd.
120
0
50
100
150
200
250
300
Output Current (mA)
Dropout Voltage vs.Output Current
6
Apr, 2021 – Rev 1.9
Vout=1.2V
Vout=1.8V
Vout=2.8V
VOUT=1.05V
Will Semiconductor Ltd.
7
Apr, 2021 – Rev 1.9
VOUT=1.8V
VOUT=2.8V
100
90
PSRR (dB)
80
70
60
50
40
30
VIN=3.8VDC+0.5VPP
VOUT=2.8V COUT=1uF
IOUT=10mA
IOUT=20mA
IOUT=150mA
20
100
1000
10000
100000
1000000
Output Spectral noise density (V/Hz)
Frequency (Hz)
PSRR vs. Frequency
10
VIN=VOUT(NOM)+0.5V, IOUT=10mA
VOUT=2.8V
VOUT=1.8V
VOUT=1.2V
1
0.1
0.01
1E-3
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Output spectral noise density vs frequency
Will Semiconductor Ltd.
8
Apr, 2021 – Rev 1.9
1.Start up (Soft Start from EN)
VOUT=1.2V
VIN=2.2V,COUT=1μF,IOUT=10mA
VIN=2.2V,COUT=1μF,IOUT=250mA
VOUT=1.8V
VIN=2.8V,COUT=1μF,IOUT=10mA
VIN=2.8V,COUT=1μF,IOUT=300mA
VOUT=2.8V
VIN=3.8V,COUT=1μF,IOUT=10mA
VIN=3.8V,COUT=1μF,IOUT=300mA
Will Semiconductor Ltd.
9
Apr, 2021 – Rev 1.9
2.Shutdown (Shutdown from EN)
VOUT=1.2V
VIN=2.2V,COUT=1μF,IOUT=10mA
VIN=2.2V,COUT=1μF,IOUT=300mA
VOUT=1.8V
VIN=2.8V,COUT=1μF,IOUT=10mA
VIN=2.8V,COUT=1μF,IOUT=300mA
VOUT=2.8V
VIN=3.8V,COUT=1μF,IOUT=10mA
VIN=3.8V,COUT=1μF,IOUT=300mA
Will Semiconductor Ltd.
10
Apr, 2021 – Rev 1.9
3.Load & Line Transient
Load step
Line Step
VOUT=1.2V
VIN=2.2V,COUT=1μF,IOUT=1mA-200mA in 1μs
VIN=2.2V-3.2V in 20μs,COUT=1μF,IOUT=1mA
VOUT=1.8V
VIN=2.8V,COUT=1μF,IOUT=1mA-300mA in 1μs
VIN=2.8V-3.8V in 20μs,COUT=1μF,IOUT=1mA
VOUT=2.8V
VIN=3.8V,COUT=1μF,IOUT=1mA-300mA in 1μs
VIN=3.8V-4.8V in 20μs,COUT=1μF,IOUT=1mA
Will Semiconductor Ltd.
11
Apr, 2021 – Rev 1.9
PACKAGE OUTLINE DIMENSIONS
DFN1x1-4L
D
Ⅰ
1.
b
k
D
1
Ⅰ
e
TOP VIEW
2.
Ⅱ
(x4) Ⅱ
1.
L
E
E1
BOTTOM VIEW
2.
Ⅲ
1.
0.
2.
0.
40
0
3.(N/A)
A3
A1
A
5
23
1.200
0
40
0.065
0.
Ⅲ
(x2)
Ⅳ
0.375
0.180
0.260
Ⅳ
1.
0.910
SIDE VIEW
Symbol
2.(N/A)
RECOMMENDED LAND PATTERN (Unit:mm)
Dimensions in Millimeters
Min.
Typ.
Max.
A
0.32
0.37
0.42
A1
-
-
0.05
A3
0.10 Ref.
b
0.17
0.22
0.28
L
0.17
-
0.30
D
0.95
1.00
1.05
E
0.95
1.00
1.05
D1
0.43
0.48
0.54
E1
0.43
0.48
0.54
K
0.14
-
-
e
Will Semiconductor Ltd.
0.65BSC
12
Apr, 2021 – Rev 1.9
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
13
Q4
Apr, 2021 – Rev 1.9
ORDER INFORMATION
Ordering No.
Vout
(V)
Package
Operating
Temperature
WL2836D08-4/TR
0.8
DFN1x1-4L
-40~+85°C
WL2836D09-4/TR
0.9
DFN1x1-4L
-40~+85°C
WL2836D10-4/TR
1.0
DFN1x1-4L
-40~+85°C
WL2836D105-4/TR
1.05
DFN1x1-4L
-40~+85°C
WL2836D11-4/TR
1.1
DFN1x1-4L
-40~+85°C
WL2836D12-4/TR
1.2
DFN1x1-4L
-40~+85°C
WL2836D15-4/TR
1.5
DFN1x1-4L
-40~+85°C
WL2836D18-4/TR
1.8
DFN1x1-4L
-40~+85°C
WL2836D25-4/TR
2.5
DFN1x1-4L
-40~+85°C
WL2836D27-4/TR
2.7
DFN1x1-4L
-40~+85°C
WL2836D28-4/TR
2.8
DFN1x1-4L
-40~+85°C
WL2836D29-4/TR
2.9
DFN1x1-4L
-40~+85°C
WL2836D30-4/TR
3.0
DFN1x1-4L
-40~+85°C
WL2836D32-4/TR
3.2
DFN1x1-4L
-40~+85°C
WL2836D33-4/TR
3.3
DFN1x1-4L
-40~+85°C
Will Semiconductor Ltd.
14
Marking
Shipping
Ih
Tape and Reel,
YW
10000
IA
Tape and Reel,
YW
10000
IB
Tape and Reel,
YW
10000
IC
Tape and Reel,
YW
10000
ID
Tape and Reel,
YW
10000
IE
Tape and Reel,
YW
10000
IG
Tape and Reel,
YW
10000
IH
Tape and Reel,
YW
10000
IK
Tape and Reel,
YW
10000
IY
Tape and Reel,
YW
10000
IL
Tape and Reel,
YW
10000
Ig
Tape and Reel,
YW
10000
IM
Tape and Reel,
YW
10000
Id
Tape and Reel,
YW
10000
IN
Tape and Reel,
YW
10000
Apr, 2021 – Rev 1.9