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PDF AZ2940 Data sheet ( Hoja de datos )
| Número de pieza | AZ2940 | |
| Descripción | ULTRA LOW DROPOUT LINEAR REGULATOR | |
| Fabricantes | BCD Semiconductor | |
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Data Sheet
1A ULTRA LOW DROPOUT LINEAR REGULATOR
General Description
Features
AZ2940
The AZ2940 is a low dropout three-terminal regulator · Minimum Guaranteed Output Current: 1A
with a typical dropout of 280mV at 1A output current. · Dropout Voltage at IOUT=1A: 280mV
The AZ2940 provides current limit and thermal shut-
down. On-chip thermal shutdown provides protection
·
·
Output Accuracy: ± 1%
Low Ground Current
against any combination of high current and ambient · Internal Current Limit and Thermal Protection
temperature that would create excessive junction tem- · Reversed-battery and Reversed-lead Insertion
peratures.
Protection
· Fast Transient Response
The AZ2940 has 2.5V, 3.3V and 5.0V versions.
The AZ2940 is available in the industry standard TO- Applications
220-3, TO-263-3 and TO-252-2 (1) power packages.
· LCD TV
· Set Top Box
· LCD Monitor
· SMPS Post Regulator
· Laptop, Palmtop and Notebook
· Portable Instrumentation
· USB Power Supply
www.DataSheet4U.com
TO-220-3
TO-263-3
TO-252-2 (1)
Figure 1. Package Types of AZ2940
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
1
1 page  
Data Sheet
1A ULTRA LOW DROPOUT LINEAR REGULATOR
Absolute Maximum Ratings (Note 1)
AZ2940
Parameter
Input Voltage
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10sec)
Thermal Resistance
ESD (Human Body Model)
ESD (Machine Model)
Symbol
VIN
TJ
TSTG
TLEAD
θJA
ESD
ESD
Value
16
150
-65 to 150
260
TO-220-3
60
TO-263-3
60
TO-252-2 (1)
100
5000
300
Unit
V
oC
oC
oC
oC/W
V
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-
imum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Input Voltage
Operating Junction Temperature
Symbol Min Max
VIN 13.2
TJ -40 125
Unit
V
oC
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
5
5 Page 
1A ULTRA LOW DROPOUT LINEAR REGULATOR
Typical Performance Characteristics (Continued)
Data Sheet
AZ2940
500
475
450
425
400
375
350
325
300
275
250
225
200
-25
AZ2940-5.0
I =750mA
OUT
0 25 50 75 100 125
Junction Temperature (oC)
Figure 12. Dropout Voltage vs. Junction Temperature
500
475
450
425
400
375
350
325
300
275
250
225
200
-25
AZ2940-5.0
I =1A
OUT
0 25 50 75
Junction Temperature (oC)
100 125
Figure 13. Dropout Voltage vs. Junction Temperature
5.05
5.04
5.03
5.02
5.01
5.00
4.99
4.98
4.97
4.96
4.95
-25
AZ2940-5.0
V =6V
IN
I =10mA
OUT
0 25 50 75
Junction Temperature (oC)
100 125
Figure 14. Output Voltage vs. Junction Temperature
100
C =2.2µF
OUT
V =5V
OUT
10 T =25OC
A
Stable Range
1
0.1
0.01
0
Unstable Range
20 40 60 80
Output Current (mA)
100
Figure 15. Output Capacitor ESR vs. Output Current
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet AZ2940.PDF ] | |
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