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PDF AME8826 Data sheet ( Hoja de datos )
| Número de pieza | AME8826 | |
| Descripción | 1.55A CMOS LDO | |
| Fabricantes | Analog Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AME8826 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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AME, Inc.
www.DataSheet4U.com
AME8826
! General Description
The AME8826 family of positive, linear regulators fea-
ture low quiescent current (45µA typ.) with low dropout
voltage, making them ideal for battery applications.
Output voltages are set at the factory and trimmed to
1.5% accuracy.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under the
"Worst" of operating conditions.
In applications requiring a low noise, regulated supply,
place a 1000pF capacitor between Bypass and Ground.
The AME8826 is stable with an output capacitance of
4.7µF or greater.
! Features
" Very Low Dropout Voltage
" Guaranteed 1.55A Output
" Accurate to within 1.5%
" 45µA Quiescent Current Typically
" Over-Temperature Shutdown
" Current Limiting
" Noise Reduction Bypass Capacitor (Fixed
Versions)
" Power-Saving Shutdown Mode
" Space-Saving DDPAK-5, SO-8 Package
" 6 Factory Pre-set Output Voltages
" Low Temperature Coefficient
" Adjustable Version
! Applications
" Instrumentation
" Portable Electronics
" Wireless Devices
" PC Peripherals
" Battery Powered Widgets
1.55A CMOS LDO
! Functional Block Diagram
(Fixed Versions)
IN OUT
Overcurrent
Shutdown
BYPASS
Thermal
Shutdown
AMP
R1
EN
1.242V
R2
GND
! Functional Block Diagram
(Adjustable Version)
IN OUT
Overcurrent
Shutdown
Thermal
Shutdown
AMP
R1
(external)
EN
1.242V
ADJ
R2
(external)
! Typical Application
GND
IN
IN OUT
OUT
AME8826
BYP GND
EN
C1 C2
5V 1µF 1nF
C3
4.7µF
1
1 page  
AME, Inc.
www.DataSheet4U.com
AME8826
1.55A CMOS LDO
! Absolute Maximum Ratings
Parameter
Maximum
Unit
Input Voltage
8V
Output Current
Output Voltage
PD / (VIN - VO)
GND - 0.3 to VIN + 0.3
mA
V
ESD Classification
B
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
! Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature
Rating
- 40 to + 85
- 40 to + 125
! Thermal Information
Parameter
Thermal Resistance (θjc)
TO-263 (DDPAK-5)
SO-8
Internal Power Dissipation (PD)
(∆T = 100oC)*
TO-263 (DDPAK-5)
SO-8
Maximum Junction Temperature
Maximum Lead Temperature (10 Sec)
* Assuming a heat sink capable of twice times (θjc)
** Estimated
Maximum
5
20**
3.00
2.5
150
300
Unit
oC
oC
Unit
oC / W
W
oC
oC
5
5 Page 
AME, Inc.
www.DataSheet4U.com
AME8826
1.55A CMOS LDO
! External Resistor Divider Table
R1
(K Ohm)
Vout
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
1
21.41
11.50
7.86
5.97
4.81
4.03
3.47
3.04
2.71
2.44
2.23
2.04
1.89
1.75
1.64
1.54
1.45
1.37
1.30
1.23
1.17
1.12
1.07
1.03
0.99
0.95
0.91
0.88
0.85
0.82
0.80
0.77
0.75
0.73
0.71
0.69
0.67
2 5 10 20 50 100 200 500 1000
42.83
23.00
15.72
11.94
9.63
8.06
6.94
6.09
5.42
4.89
4.45
4.09
3.78
3.51
3.28
3.07
2.90
2.74
2.59
2.46
2.35
2.24
2.15
2.06
1.97
1.90
1.83
1.76
1.70
1.65
1.59
1.54
1.50
1.45
1.41
1.37
1.34
R2(kohm)=(1.242*R1(kohm))/(Vout-1.242)
107.07
57.50
39.30
29.86
24.07
20.16
17.35
15.22
13.56
12.22
11.13
10.21
9.44
8.77
8.19
7.69
7.24
6.84
6.48
6.16
5.87
5.60
5.36
5.14
4.94
4.75
4.57
4.41
4.26
4.12
3.99
3.86
3.75
3.64
3.53
3.43
3.34
214.14
115.00
78.61
59.71
48.14
40.32
34.69
30.44
27.12
24.45
22.26
20.43
18.88
17.54
16.39
15.37
14.48
13.68
12.96
12.32
11.74
11.21
10.73
10.28
9.87
9.50
9.15
8.82
8.52
8.24
7.97
7.72
7.49
7.27
7.06
6.87
6.68
428.28
230.00
157.22
119.42
96.28
80.65
69.39
60.88
54.24
48.90
44.52
40.86
37.75
35.08
32.77
30.74
28.95
27.36
25.93
24.64
23.48
22.42
21.45
20.56
19.75
18.99
18.29
17.64
17.04
16.47
15.94
15.45
14.98
14.54
14.13
13.74
13.37
1070.69
575.00
393.04
298.56
240.70
201.62
173.46
152.21
135.59
122.24
111.29
102.14
94.38
87.71
81.93
76.86
72.38
68.39
64.82
61.61
58.70
56.05
53.63
51.41
49.36
47.48
45.73
44.11
42.59
41.18
39.86
38.62
37.45
36.36
35.32
34.35
33.42
597.55
481.68
403.44
347.07
304.52
271.27
244.56
222.64
204.33
188.80
175.46
163.88
153.74
144.78
136.81
129.67
123.23
117.41
112.11
107.27
102.83
98.74
94.97
91.47
88.22
85.19
82.37
79.73
77.25
74.92
72.72
70.65
68.70
66.85
962.79
806.49
693.85
608.82
542.36
488.98
445.16
408.55
377.51
350.85
327.70
307.43
289.51
273.57
259.29
246.43
234.78
224.19
214.51
205.63
197.46
189.91
182.92
176.42
170.37
164.72
159.44
154.48
149.82
145.43
141.30
137.39
133.69
877.12
819.26
768.56
723.78
683.92
648.23
616.07
586.96
560.47
536.27
514.07
493.64
474.77
457.29
441.05
425.93
411.80
398.59
386.19
374.55
363.58
353.24
343.47
334.23
914.58
882.10
851.85
823.61
797.18
772.39
749.10
727.17
706.48
686.95
668.46
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet AME8826.PDF ] | |
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