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PDF WL2803K Data sheet ( Hoja de datos )
| Número de pieza | WL2803K | |
| Descripción | CMOS LDO | |
| Fabricantes | WillSEMI | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de WL2803K (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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WL2803K
Ultra low dropout, 800mA, CMOS LDO
WL2803K
Http://www.sh-willsemi.com
Descriptions
The WL2803K series are ultra low dropout, Low
quiescent current, high PSRR CMOS LDO. The
dropout voltage is 260mV (Typ.) at 800mA load
current.
Using CMOS construction, the quiescent current
consumed by the WL2803K is typically 150uA over the
entire input voltage range, making it attractive for
consumer, networking applications that demand high
output current.
The WL2803K series are available in wide output
voltage range version from 1.2V to 3.3V with 0.1V step.
Standard output voltages are 1.8V, 3.3V. Other output
voltage options are available upon request.
The WL2803K series offer thermal shutdown
(OTP) and current limit functions, to assure the stability
of chip and power system at wrong condition, and it
uses trimming technique to guarantee output voltage
accuracy within ±2%.
The WL2803K regulators are available in
SOT-89-5L packages. Standard products are Pb-free
and Halogen-free.
SOT-89-5L
VOUT
5
NC
4
12
VIN GND
3
EN
Pin Configuration (Top View)
54
2803K**
YYWW
Features
Input voltage
: 2.5V~5.5V
Output voltage : 1.8V, 3.3V (Or upon request)
Output current : 800mA
PSRR
: 65dB @ 1KHz
Dropout voltage : 260mV @ IOUT=0.8A
Output noise
: 100uV
Quiescent current : 150μA Typ.
Applications
123
2803K = Device code
** = Voltage code (33: 3.3V)
YY = Year code
WW = Week code
Marking
Order Information
For detail information, Please refer to page 9.
LCD TV
STB
Computer, Graphic card
Network communication equipments
Others portable electronics devices
Will Semiconductor Ltd.
1 Aug. 2013 – Rev1.4
1 page  
WL2803K
Typical characteristics (Ta=25oC, VIN=VOUT+1V, CIN=COUT=4.7uF, unless otherwise noted)
200
190
180
170
160
150
140
130
120
110
100
3.0
V =3.3V
OUT
I =0mA
OUT
3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage: V (V)
IN
Quiescent current vs. Supply voltage
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
2.9
I =800mA
OUT
2.8
3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4
Input Voltage: V (V)
IN
Output voltage vs. Supply voltage
3.8
3.7
T = -40oC
A
3.6
3.5
3.4
V =5.5V
IN
3.3
V =4.2V
IN
3.2
V =3.8V
3.1 IN
3.0
2.9
2.8
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Output Current: I (A)
OUT
Output voltage vs. Output current
300
250
200
150
100
50
0
-50
V =3.3V
OUT
I =0mA
OUT
-25 0 25 50 75 100 125 150
Ambient Temperature: T (oC)
A
Quiescent current vs. Ambient temperature
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
-50
I =1mA
OUT
-25 0 25 50 75 100 125 150
Ambient Temperature: T (oC)
A
Output voltage vs. Ambient temperature
3.8
3.7
T = 25oC
A
3.6
3.5
3.4
V =5.5V
IN
V =4.2V
IN
3.3
3.2
V =3.8V
3.1 IN
3.0
2.9
2.8
0.0 0.4 0.8 1.2 1.6
Output Current: I (A)
OUT
Output voltage vs. Output current
2.0
Will Semiconductor Ltd.
5 Aug. 2013 – Rev1.4
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet WL2803K.PDF ] | |
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