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PDF G9966 Data sheet ( Hoja de datos )
| Número de pieza | G9966 | |
| Descripción | 3A Low Dropout Regulator | |
| Fabricantes | Global Mixed-mode Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de G9966 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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www.DataSheet4U.Gcolmobal Mixed-mode Technology Inc.
G9966
3A Low Dropout Regulator with Enable
Features
1.5V, 1.8V, 2.5V, 3.3V and Adjustable Outputs
Over Current and Over Temperature Protection
Output Current 3A
Enable Pin
20µA Quiescent Current in Shutdown
TO-263-5 Package
Applications
Battery Powered Systems
Motherboards
Peripheral Cards
Network Cards
Set Top Boxes
Notebook Computers
Ordering Information
ORDER
NUMBER
G9966-15TGU
G9966-18TGU
G9966-25TGU
G9966-33TGU
G9966-ADJTGU
MARKING
G9966-15
G9966-18
G9966-25
G9966-33
G9966
General Description
The G9966 is a high performance positive voltage
regulator designed for use in applications requiring
very low dropout voltage at up to 3 Amps. Since it has
superior dropout characteristics compared with regular
LDOs, it can be used to supply 2.5V on motherboards
or 1.5V, 1.8V, 3.3V on peripheral cards from the power
supply thus allowing the elimination of costly heatsinks.
An enable pin further reduces power dissipation while
shut down. The G9966 provides excellent regulation
over variations in line, load and temperature. It pro-
vides over current and over temperature protection
functions.
The G9966 is available with 1.5V, 1.8V, 2.5V, 3.3V
and adjustable outputs in TO-263-5 package.
TEMP.
RANGE
-40°C ~ +85°C
-40°C ~ +85°C
-40°C ~ +85°C
-40°C ~ +85°C
-40°C ~ +85°C
PACKAGE
(Pb free)
TO-263-5
TO-263-5
TO-263-5
TO-263-5
TO-263-5
Pin Configuration
G9966-XX
Typical Application Circuit
G9966-XX
VEN
VIN
VO
VEN
VIN
VO
GND
12 3 4 5
VEN VIN GND VO N.C.
TO-263-5
G9966-ADJ
123 45
VEN VIN GND VO ADJ
TO-263-5
Ver: 0.6 Preliminary
May 19, 2006
C1
220µF
C2
220µF
VEN
VIN
VO
C1 C2
220µF 220µF
R1
R2
1.2 (R1+R2)
VO =
R2
Volts
R2=12kΩ is recommended
1
G9966-ADJ
VEN
VIN
VO GND
ADJ
TEL: 886-3-5788833
http://www.gmt.com.tw
1 page  
www.DataSheet4U.Gcolmobal Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
G9966
G9966-33 Start-up
G9966-18 Overcurrent Protection Characteristics
G9966-18-Start-up
G9966-18-Start-up
G9966 Max. Power Dissipation
vs. PCB Top Copper Area
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0.5 1.5 2.5 3.5 4.5
PCB Top Copper Area (in2)
G9966 Max. Power Dissipation vs. TAMB
4.5 Unit:in2
4 A=0.5
3.5 A=1.0
A=1.5
3
A=2.0
2.5 A=2.5
2 A=3.0
1.5
1
0.5
0
25 35 45 55 65 75 85
TAMB (°C)
A=3.5
A=4.0
A=4.5
A=5.0
Ver: 0.6 Preliminary
TEL: 886-3-5788833
May 19, 2006
http://www.gmt.com.tw
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet G9966.PDF ] | |
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