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PDF AMS317CM-X Data sheet ( Hoja de datos )
| Número de pieza | AMS317CM-X | |
| Descripción | 1A LOW DROPOUT VOLTAGE REGULATOR | |
| Fabricantes | Advanced Monolithic Systems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AMS317CM-X (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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Advanced
Monolithic
Systems
AMS317
1A LOW DROPOUT VOLTAGE REGULATOR
FEATURES
• Three Terminal Adjustable or Fixed Voltages*
1.8V, 2.5V, 2.85V, 3.3V and 5.0V
• Output Current of 1A
• Operates Down to 1V Dropout
• Line Regulation: 0.2% Max.
• Load Regulation: 0.4% Max.
•TO-220, TO-263, TO-252 and SOT-223 package available
APPLICATIONS
• High Efficiency Linear Regulators
• Post Regulators for Switching Supplies
• 5V to 3.3V Linear Regulator
• Battery Chargers
• Active SCSI Terminators
• Power Management for Notebook
• Battery Powered Instrumentation
GENERAL DESCRIPTION
TThhee AMS317 series of adjustable and fixed voltage regulators are designed to provide 1A output current and to operate down
to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V at maximum output
current, decreasing at lower load currents.
On-chip trimming adjusts the reference voltage to 1%. Current limit is also trimmed, minimizing the stress under overload
conditions on both the regulator and power source circuitry.
The AMS317 devices are pin compatible with other three-terminal regulators and are offered in 3 lead TO-220 package, in
the 2 & 3 Lead TO-263 (Plastic DD), in the TO-252 (D PAK) and in the low profile surface mount SOT-223 package.
ORDERING INFORMATION:
OUTPUT
PACKAGE TYPE
VOLTAGE 3 Lead TO-220 2 &3 Lead TO-263
TO-252
ADJUSTABLE AMS317ACT
AMS317ACM
AMS317CT
AMS317CM
FIXED*
AMS317ACT-X AMS317ACM-X
AMS317CT-X AMS317CM-X
X= 1.8V, 2.5V, 2.85V, 3.3V and 5.0V.
*For additional available fixed voltages contact factory.
AMS317ACD
AMS317CD
AMS317ACD-X
AMS317CD-X
SOT-223
AMS317A
AMS317
AMS317A-X
AMS317-X
PIN CONNECTIONS
SOT-223 Top View
FIXED VERSION
ADJUSTABLE VERSION
1- Ground
2- VOUT
3- VIN
1- Adjust
2- VOUT
3- VIN
TO-220 FRONT VIEW
TAB IS
OUTPUT
3
2
1
123
TO-252 FRONT VIEW
TAB IS
OUTPUT
3
2
1
OPERATING JUNCTION
TEMPERATURE RANGE
-40 to +125° C
0 to 125° C
-40 to +125° C
0 to 125° C
TO-263 FRONT VIEW
TAB IS
OUTPUT
3
2
1
2L TO-263 FRONT VIEW
TAB IS
OUTPUT
3
2
1
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
1 page  
Table 1.
COPPER AREA
TOP SIDE* BACK SIDE BOARD AREA
2500 Sq. mm 2500 Sq. mm
2500 Sq. mm
1000 Sq. mm 2500 Sq. mm
2500 Sq. mm
225 Sq. mm 2500 Sq. mm
2500 Sq. mm
100 Sq. mm 2500 Sq. mm
2500 Sq. mm
1000 Sq. mm 1000 Sq. mm
1000 Sq. mm
1000 Sq. mm
0
1000 Sq. mm
* Tab of device attached to topside copper.
THERMAL RESISTANCE
(JUNCTION-TO-AMBIENT)
45°C/W
45°C/W
53°C/W
59°C/W
52°C/W
55°C/W
TYPICAL PERFORMANCE CHARACTERISTICS
AMS317
Minimum Operating Current
(Adjustable Device)
12
9 TJ =
125°C
6 TJ = 25°C
3
0
0 5 10 15
INPUT/OUTPUT DIFFERENTIAL (V)
20
Load Regulation
0.10
∆ ILOAD = 1A
0.05
0
-0.05
-0.10
-0.15
-0.20
-50 -25
0 25 50 75
TEMPERATURE (°C)
100 125
Short-Circuit Current
1.25
TJ = 125°C
1.00
TJ = 25°C
0.75
0.50
0.25
0
0
5 10
INPUT/OUTPUT DIFFERENTIAL
15
Ripple Rejection vs. Current
100
90
fRIPPLE = 120Hz
80
70 VRIPPLE≤3Vp-p
60
50 fRIPPLE = 20Hz
40 VRIPPLE≤0.5Vp-p
30
20
10
VOUT = 5V
CADJ = 25 µF
0 COUT = 25µF
0 0.2 0.4 0.6
OUTPUT CURRENT (A)
0.8
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AMS317CM-X.PDF ] | |
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