WL2805
WL2805
Low power consumption, CMOS LDO
Http://www.sh-willsemi.com
Descriptions
The WL2805 series are low dropout linear
regulators
and
optimized
to
provide
a
high
SOT-23-3L
SOT-23-5L
performance solution for battery power system to
deliver low quiescent current. The devices offer a new
level of cost effective performance in cellular phones,
laptop and notebook computers, and other portable
devices.
The WL2805 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
WL2805
regulators
are
available
in
WL2805N**
WL2805E**
SOT-23-3L packages. Standard products are Pb-free
and Halogen free products.
Pin Configuration (Top View)
Features
Quiescent current
Input voltage
Output voltage
Output current
Output current
Dropout voltage
Recommend capacitor
Operating Temperature
Output short protection
: 3μA Typ.
: 2.3V ~ 5.5V
: 1.2V ~ 3.3V
: 250mA @ V
OUT
>2V
: 100mA @ V
OUT
≤2V
: 100mV @ 100mA
: 1uF
: -40 ~ +85
°C
For detail marking information please see page 9.
Marking
Applications
MP3/MP4 Players
Cell phones
Bluetooth earphone
Wireless mouse
Others electronics devices
Order Information
For detail order information please see page 9.
Will Semiconductor Ltd.
1
Jun 2016 – Rev2.6
WL2805
Absolute Maximum Ratings
Parameter
Power Dissipation
V
IN
Range
V
EN
Range
V
OUT
Range
Lead Temperature
Storage Temperature
Operating Junction Temperature
Value
300
-0.3½6.0
-0.3½V
IN
-0.3½V
IN
260
-65 ~ 150
150
Unit
mW
V
V
V
o
o
o
C
C
C
Operating Range
Parameter
Thermal Resistance, R
θJA
Input Voltage
Operating Temperature Range
Value
250
2.3 ~ 5.5
-40½85
Unit
o
C/W
V
o
C
Electronics Characteristics
(V
IN
= V
OUT
+1V, C
IN
=C
OUT
=1uF, T
A
=25°C, unless otherwise noted)
Parameter
Symbol
Condition
Min.
1.170
1.270
1.470
Output Voltage
V
OUT
V
IN
= V
OUT
+1V
,
I
OUT
=1mA
1.764
2.450
2.744
2.940
3.234
Output Current
Output short current limiter
Dropout Voltage
Line Regulation
Load Regulation
Quiescent Current
Shut-down Current
Power Supply Ripple Rejection
I
OUT
I
LIM
V
DROP
△V
LINE
△V
LOAD
I
Q
I
SHDN
PSRR
V
OUT
> 2V
V
OUT
≤
2V
V
OUT
=GND
I
OUT
=30mA, V
OUT
=3.0V
I
OUT
=100mA, V
OUT
=3.0V
V
IN
=V
OUT
+1V~6V, I
OUT
=40mA
I
OUT
= 1~ 100mA
V
IN
= V
OUT
+1V, I
OUT
=0A
V
EN
=0V
Vp-p=1V, F=100Hz, I
OUT
=10mA
Vp-p=1V, F=1KHz, I
OUT
=10mA
-50
-30
25
3
5
1.0
150
30
100
100
200
0.1
Typ.
1.200
1.300
1.500
1.800
2.500
2.800
3.000
3.300
Max.
1.230
1.330
1.530
1.836
2.550
2.856
3.060
3.366
250
100
Unit
V
mA
mA
mV
%/V
mV
uA
uA
dB
dB
Will Semiconductor Ltd.
3
Jun 2016 – Rev2.6
WL2805
Typical Characteristics
(T
A
=25
o
C, unless otherwise noted)
15
V
OUT
=3.0V
12
9
6
3
0
15
V
OUT
=3.3V
12
9
6
3
0
Quiescent Current (uA)
0
1
2
3
4
5
6
Quiescent Current (uA)
0
1
2
3
4
5
6
Quiescent Current vs. Input Voltage
5
V
OUT
=3.0V
4
4
5
Input Voltage (V)
Quiescent Current vs. Input Voltage
Input Voltage (V)
V
OUT
=3.3V
Output Voltage (V)
3
2
1
0
I
OUT
=100mA
0
1
Output Voltage (V)
3
2
1
0
I
OUT
=100mA
0
1
Input Voltage (V)
2
3
4
5
6
Input Voltage (V)
2
3
4
5
6
Output Voltage vs. Input Voltage
Output Voltage vs. Input Voltage
Dropout Voltage vs. Output Current
Will Semiconductor Ltd.
4
Dropout Voltage vs. Output Current
Jun 2016 – Rev2.6
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