WS4622C
WS4622C
2A, 38 mΩ, 250nA Quiescent current and 90nA
Http://www.sh-willsemi.com
Standby current Load Switch
Descriptions
The WS4622C is a single channel load switch with
ultra-low on resistance MOSFET. It is designed for load
switching applications with ultra-low quiescent current
(250nA) and ultra-low standby current (90nA).The
device is controlled by external logic pin, allowing
CSP-4L
optimization of battery life, and portable device
autonomy.
The WS4622C contains a P-channel MOSFET that
can operate over an input voltage range of 1.2V to
5.5V and can support a maximum continuous current
of 2A. Output discharge path is designed to reduce
voltage on the output rail quickly.
The WS4622C are available in a small 1 x 1mm
Pin Configuration (Top View)
CSP-4L Package. Standard products are Pb-free and
Halogen-free.
Features
Input Voltage Range
:1.2V~5.5V
Main switch Ron
: 38mΩ @ 4.2V
Maximum Output current
: 2A.
Quiescent current
: 250nA @ Typ
Standby current
: 90nA @ Typ
Recommend capacitor
: 1μF
Active High EN Pin
Y : Year code
Output Auto-discharge
W : Week code
CSP-4L 1 x 1 mm
CSP-4L
22 : Device code
Marking
Applications
MP3/MP4 Players
Cellphones, radiophone, digital cameras
Bluetooth, wireless handsets
Others portable electronics device
Will Semiconductor Ltd.
Order information
Device
WS4622C-4/TR
1
Marking
Package
Shipping
22YW
CSP-4L
3000/Reel&Tape
Apr, 2019 – Rev 1.0
WS4622C
Typical Application
Pin Description
PIN
Symbol
Description
A1
OUT
A2
IN
Input pin
B1
GND
Ground
B2
EN
Output pin
Enable (Active high)
Block Diagram
Will Semiconductor Ltd.
2
Apr, 2019 – Rev 1.0
WS4622C
Absolute Maximum Ratings
Parameter
Value
VIN Range
-0.3~6.5
V
VEN Range
-0.3~6.5
V
VOUT Range
-0.3~6.5
V
Storage Temperature Range
-40 ~ 150
o
Junction Temperature Range
-40 ~ 125
oC
Lead Temperature
260
o
Moisture Sensitivity
Level-1
ESD Ratings
Unit
C
C
HBM
8000
V
MM
400
V
Recommend Operating Ratings
Parameter
Value
Operating Power voltage
1.2~5.5
V
Enable Voltage
0~5.5
V
Maximum DC current
2
A
Operating ambient temperature
-40~85
o
Operating Junction temperature
-40~125
o
Decoupling input capacitor
1
uF
1
uF
Power Dissipation Rating(25 C,WLCSP package)
0.5
W
Power Dissipation Rating(85 C,WLCSP package)
0.2
Thermal Resistance, RθJA (CSP-4L)
100
Decoupling output capacitor
o
o
Will Semiconductor Ltd.
3
Unit
C
C
W
C/W
o
Apr, 2019 – Rev 1.0
WS4622C
Electronics Characteristics
(Ta=25oC, VIN=5V, CIN=COUT=1μF, unless otherwise noted)
Parameter
Input Voltage
Static drain-source
on-state resistance
Symbol
Condition
VIN
RDSON
Min.
Typ.
1.2
Max.
Unit
5.5
V
VIN =5.5,IOUT =200mA
34
42
VIN =4.2,IOUT =200mA
38
47
VIN =3.3,IOUT =200mA
42
52
VIN =1.8,IOUT =200mA
62
88
VIN =1.2,IOUT =200mA
104
250
EN=Low,VIN=3.3V
65
120
mΩ
Output discharge path
RDIS
EN logic high voltage
VENH
EN logic low voltage
VENL
EN pull down resistor
RPD
Standby current
ISTD
EN=Low, No load
90
500
nA
Quiescent current
IQ
EN=High,No load
250
500
nA
Enable time
TEN
VIN =3.6,RL=25ohm
40
μs
Output rise time
TR
VIN =3.6,RL=25ohm
30
μs
ON time(TEN+TR)
TON
VIN =3.6,RL=25ohm
70
μs
Output fall time
TF
VIN =3.6,RL=25ohm
42
μs
0.9
V
0.5
4
4
V
MΩ
Enable, rise and fall time
Will Semiconductor Ltd.
Ω
Apr, 2019 – Rev 1.0
WS4622C
Typical characteristics (Ta=25oC, VIN=5V,IOUT=200mA, CIN=COUT=1μF, unless otherwise noted)
Will Semiconductor Ltd.
5
Apr, 2019 – Rev 1.0
WS4622C
Will Semiconductor Ltd.
6
Apr, 2019 – Rev 1.0
WS4622C
Turn On & Turn Off
(1)Start from VIN.
VIN=VEN=3.6V,IOUT=100mA
VIN=VEN=3.6V,IOUT=1A
(2)Start from EN
VIN=VEN=3.6V,IOUT=100mA
VIN=VEN=3.6V,IOUT=1A
(3)Shutdown from VIN
VIN=VEN=3.6V,IOUT=100mA
VIN=VEN=3.6V,IOUT=1A
(4)Shutdown from EN
VIN=VEN=3.6V,IOUT=100mA
Will Semiconductor Ltd.
VIN=VEN=3.6V,IOUT=1A
7
Apr, 2019 – Rev 1.0
WS4622C
ACKAGE OUTLINE DIMENSIONS
CSP-4L
D
e
E
e
b
TOP VIEW
BOTTOM VIEW
0.50
Package Outline
A2
A
A1
0.50
A3
Φ0.30
SIDE VIEW
RECOMMENDED LAND PATTERN (unit:mm)
Symbol
Dimensions in Millimeters
Min.
Typ.
Max.
A
0.55
0.58
0.62
A1
0.22
0.24
0.26
A2
0.30
0.32
0.34
A3
0.03 Ref.
D
0.94
0.97
1.00
E
0.94
0.97
1.00
e
b
Will Semiconductor Ltd.
0.50BSC
0.30
0.32
8
0.34
Apr, 2019 – Rev 1.0
WS4622C
TAPE AND REEL INFORMATION
Reel Dimensions
RD
Reel Dimensions
W
Tape Dimensions
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
9
7inch
13inch
1 8mm
12mm
16mm
2mm
4mm
8mm
Q1
Q2
Q3
Q4
Apr, 2019 – Rev 1.0