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PDF AZ317 Data sheet ( Hoja de datos )
| Número de pieza | AZ317 | |
| Descripción | 3-TERMINAL ADJUSTABLE REGULATOR | |
| Fabricantes | BCD Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AZ317 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR
General Description
Features
Data Sheet
AZ317
The AZ317 is an adjustable three-terminal positive
voltage regulator with a very low dropout of 1.2V at
1A output current. Using 2 external resistors, the
AZ317 can provide an adjustable output voltage down
to 1.25V.
The AZ317 includes a circuit of trimmed bandgap ref-
erence to assure output voltage accuracy to be within
1%. It also provides current limiting and thermal shut-
down. The current limit is trimmed to ensure specified
output current and controlled short-circuit current. The
On-chip thermal limiting provides protection against
any combination of overload and ambient temperature
that would create excessive junction temperature.
The AZ317 is available in the standard SOT-223, TO-
220-3, TO-252-2 (1), TO-252-2 (3) and TO-263-3
power packages.
· Typical 1% Output Voltage Tolerance
· Typical 0.01%/V Line Regulation
· Typical 0.2% Load Regulation
· Very Low Dropout Voltage: 1.2V at 1A Output
Current
· Trimmed Current Limit
· On-chip Thermal Protection
· Operation Junction Temperature: 0 to 125oC
Applications
· PC Motherboard
· LCD Monitor
· Graphic Card
· DVD Player
· Network Interface Card/Switch
· Telecom Equipment
· Printer and other Peripheral Equipment
SOT-223
TO-220-3
TO-252-2 (1)
TO-252-2 (3)
Figure 1. Package Types of AZ317
TO-263-3
Jan. 2013 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
1
1 page  
Data Sheet
3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR
AZ317
Electrical Characteristics
(Typicals and limits apply for TJ =25oC, P≤ Maximum Power Dissipation unless otherwise specified.)(Note 2)
Parameter
Reference Voltage
Line Regulation
Load Regulation
Thermal Regulation
Dropout Voltage
Current Limit
Adjust Pin Current
Adjust Pin Current Change
Minimum Load Current
Ripple Rejection
Temperature Stability
Long -Term Stability
RMS Output Noise (% of VOUT)
Thermal Resistance,
Junction to Case
Thermal Shutdown
Symbol
VREF
SV
Si
ΔV
ILIMIT
Conditions
10mA≤IOUT≤1A,
3V≤ (VIN-VOUT) ≤10V
IOUT ≤ 20mA, 3V≤VIN-VOUT≤10V
VIN -VOUT = 2V, 10mA≤IOUT≤1A
20ms Pulse
IOUT = 1A
(VIN-VOUT) = 2V
1.4V≤(VIN-VOUT) ≤ 10V,
10mA ≤IOUT ≤1A
3V≤ (VIN-VOUT) ≤ 15V
f =120Hz, COUT =1μF Tantalum,
(VIN-VOUT) = 3V, IOUT =1A
TA=125oC, 1000hrs
TA=25oC, 10Hz ≤ f ≤ 10kHz
SOT-223
TO-252-2 (1)/(3)
TO-220
TO-263
Junction Temperature
Thermal Shutdown Hysteresis
Min Typ Max Unit
1.20 1.25 1.30 V
0.01 0.04 %/V
0.2 0.4 %
0.04 0.07 %/W
1.2 1.3 V
1.2 1.5 1.8 A
50 100 μA
0.2 5 μA
3.5 10 mA
60 75
dB
1
0.3
0.003
15
10
4.5
4
150
25
%
%
%
oC/W
oC
oC
Note 2: Maximum Power Dissipation is Package Type and Case Temperature dependent. Please see Figure 12.
Jan. 2013 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
5
5 Page 
3-TERMINAL 1A ADJUSTABLE VOLTAGE REGULATOR
Mechanical Dimensions (Continued)
TO-220-3
Data Sheet
AZ317
Unit: mm(inch)
9.660(0.380)
10.660(0.420)
φ3.560(0.140)
4.060(0.160)
2.580(0.102)
3.380(0.133)
φ1.500(0.059)
1.160(0.046)
1.760(0.069)
60°
0.813(0.032)
60°
2.540(0.100)
0.381(0.015)
3°
8.763(0.345)
0.381(0.015)
2.540(0.100)
0.550(0.022)
1.350(0.053)
0.200(0.008)
7°
3.560(0.140)
4.820(0.190)
2.080(0.082)
2.880(0.113)
7°
0.356(0.014)
0.406(0.016)
Jan. 2013 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AZ317.PDF ] | |
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