AME8826 [AME]

1.55A CMOS LDO; 1.55A CMOS LDO
AME8826
型号: AME8826
厂家: ANALOG MICROELECTRONICS    ANALOG MICROELECTRONICS
描述:

1.55A CMOS LDO
1.55A CMOS LDO

文件: 总14页 (文件大小:212K)
中文:  中文翻译
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AME, Inc.  
1.55A CMOS LDO  
AME8826  
! General Description  
! Functional Block Diagram  
(Fixed Versions)  
The AME8826 family of positive, linear regulators fea-  
ture low quiescent current (45µA typ.) with low dropout  
voltage, making them ideal for battery applications.  
IN  
OUT  
Overcurrent  
Shutdown  
Thermal  
Shutdown  
Output voltages are set at the factory and trimmed to  
1.5% accuracy.  
R1  
These rugged devices have both Thermal Shutdown,  
and Current Fold-back to prevent device failure under the  
"Worst" of operating conditions.  
BYPASS  
AMP  
EN  
In applications requiring a low noise, regulated supply,  
place a 1000pF capacitor between Bypass and Ground.  
R2  
1.242V  
The AME8826 is stable with an output capacitance of  
4.7µF or greater.  
GND  
! Functional Block Diagram  
(Adjustable Version)  
! Features  
" Very Low Dropout Voltage  
" Guaranteed 1.55A Output  
" Accurate to within 1.5%  
IN  
OUT  
Overcurrent  
Shutdown  
Thermal  
Shutdown  
" 45µAQuiescentCurrentTypically  
"Over-TemperatureShutdown  
" Current Limiting  
R1  
(external)  
AMP  
" Noise Reduction Bypass Capacitor (Fixed  
Versions)  
EN  
ADJ  
" Power-Saving Shutdown Mode  
" Space-Saving DDPAK-5, SO-8 Package  
" 6 Factory Pre-set Output Voltages  
" LowTemperatureCoefficient  
" Adjustable Version  
1.242V  
R2  
(external)  
GND  
! Typical Application  
IN  
OUT  
IN  
OUT  
AME8826  
GND  
! Applications  
EN  
BYP  
" Instrumentation  
C1 C2  
1nF  
C3  
" Portable Electronics  
" Wireless Devices  
" PC Peripherals  
4.7µF  
5V 1µF  
" Battery Powered Widgets  
1
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! Pin Configuration  
TO-263(DDPAK-5)  
Top View  
TO-263(DDPAK-5)  
Top View  
AME 8826AEDVxxx  
1. EN  
AME8826BEDVADJ  
1. EN  
2. VIN  
2. VIN  
AME8826  
AME8826  
3. GND  
3. GND  
4. VOUT  
4. VOUT  
5. BYP  
5. ADJ  
1
2
3
4
5
1
2
3
4
5
SO-8  
Top View  
SO-8  
Top View  
AME 8826AEHAxxx  
1. BYP  
AME8826BEHAADJ  
1. ADJ  
8
7
6
5
8
7
6
5
2. GND  
2. GND  
3. GND  
3. GND  
AME8826  
AME8826  
4. EN  
4. EN  
5. VIN  
5. VIN  
6. GND  
6. GND  
2
3
4
2
3
4
1
1
7. GND  
7. GND  
8. VOUT  
8. VOUT  
SO-8  
Top View  
8
7
6
5
AME8826CEHAADJ  
1. EN  
2. VIN  
3. VOUT  
AME8826  
4. ADJ  
5. GND  
6. GND  
2
3
4
1
7. GND  
8. GND  
2
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! Ordering Information  
Part Number  
Marking  
Output Voltage Package Operating Temp. Range  
AME8826  
AEDV150  
yyww  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
AME8826AEDV150  
1.50  
1.80  
2.50  
3.30  
4.75  
5.00  
ADJ  
1.50  
1.80  
2.50  
3.30  
4.75  
DDPAK-5  
DDPAK-5  
DDPAK-5  
DDPAK-5  
DDPAK-5  
DDPAK-5  
DDPAK-5  
SO-8  
AME8826  
AEDV180  
yyww  
AME8826AEDV180  
AME8826AEDV250  
AME8826AEDV330  
AME8826AEDV475  
AME8826AEDV500  
AME8826BEDVADJ  
AME8826AEHA150  
AME8826AEHA180  
AME8826AEHA250  
AME8826AEHA330  
AME8826AEHA475  
AME8826  
AEDV250  
yyww  
AME8826  
AEDV330  
yyww  
AME8826  
AEDV475  
yyww  
AME8826  
AEDV500  
yyww  
AME8826  
BEDVADJ  
yyww  
AME8826  
AEHA150  
yyww  
AME8826  
AEHA180  
yyww  
SO-8  
AME8826  
AEHA250  
yyww  
SO-8  
AME8826  
AEHA330  
yyww  
SO-8  
AME8826  
AEHA475  
yyww  
SO-8  
3
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! Ordering Information (contd.)  
Part Number  
Marking  
Output Voltage Package Operating Temp. Range  
AME8826  
AEHA500  
yyww  
- 40oC to + 85oC  
- 40oC to + 85oC  
- 40oC to + 85oC  
AME8826AEHA500  
5.00  
ADJ  
ADJ  
SO-8  
SO-8  
SO-8  
AME8826  
BEHAADJ  
yyww  
AME8826BEHAADJ  
AME8826CEHAADJ  
AME8826  
CEHAADJ  
yyww  
Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.  
4
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! Absolute Maximum Ratings  
Parameter  
Input Voltage  
Maximum  
Unit  
V
8
PD / (VIN - VO)  
GND - 0.3 to VIN + 0.3  
B
Output Current  
mA  
V
Output Voltage  
ESD Classification  
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  
Unit  
oC  
oC  
! Thermal Information  
Parameter  
Maximum  
Unit  
TO-263 (DDPAK-5)  
5
oC / W  
Thermal Resistance (  
θjc  
)
SO-8  
TO-263 (DDPAK-5)  
SO-8  
20**  
3.00  
2.5  
Internal Power Dissipation (PD)  
( T = 100oC)*  
W
oC  
oC  
Maximum Junction Temperature  
150  
300  
Maximum Lead Temperature (10 Sec)  
* Assuming a heat sink capable of twice times (θjc)  
** Estimated  
5
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! Electrical Specifications  
TA=25OC unless otherwise noted  
Test Condition  
Parameter  
Input Voltage  
Symbol  
Min Typ Max Units  
VIN  
VO  
Note 1  
-1.5  
7
V
Output Voltage Accuracy  
IO=1mA  
1.5  
%
1.5V<=VO(NOM)<=2.0V  
1000  
800  
600  
IO=1.55A  
See  
Dropout Voltage  
VDROPOUT  
mV  
2.0V<VO(NOM)<=2.8V  
2.8V<VO(NOM)<3.8V  
chart  
VO=VO(NOM) -2.0%  
Output Current  
IO  
VO>1.2V  
1550  
mA  
mA  
Current Limit  
ILIM  
VO>1.2V  
1550 2000  
Quiescent Current  
IQ  
IO=0mA  
45  
45  
70  
A
µ
(For Fixed Output Voltage Options)  
Ground Pin Current  
IGND  
IO=1mA to 1.5A  
A
µ
IO=1mA  
VIN=VO+1 to VO+2  
VO < 2.0V  
0.15  
%
%
Line Regulation  
REGLINE  
VO >= 2.0V  
0.02 0.1  
Load Regulation  
REGLOAD  
OTS  
OTH  
TC  
IO=1mA to 1.5A  
0.2  
150  
30  
30  
1
1
%
oC  
Over Temerature Shutdown  
Over Temerature Hysterisis  
VO Temperature Coefficient  
ADJ Input Bias Current  
ADJ Reference Voltage  
oC  
ppm/oC  
IADJ  
A
µ
VREF  
1.223 1.242 1.261  
V
f=1kHz  
f=10kHz  
f=100kHz  
f=1kHz  
50  
20  
15  
75  
55  
30  
IO=100mA  
Power Supply Rejection  
Power Supply Rejection  
PSRR  
PSRR  
dB  
C =4.7 F ceramic  
µ
O
IO=100mA  
dB  
C =4.7 F ceramic  
µ
f=10kHz  
f=100kHz  
O
CBYP=0.01 F  
µ
f=10Hz to 100kHz  
Output Voltage Noise  
Output Voltage Noise  
EN Input Threshold  
EN Input Bias Current  
eN  
eN  
Co=4.7 F  
µ
30  
30  
Vrms  
µ
IO=10mA,CBYP=0 F  
µ
f=10Hz to 100kHz  
Co=4.7 F  
µ
Vrms  
µ
IO=10mA,CBYP=0.01 F  
µ
VEH  
VEL  
IEH  
VIN=2.7V to 7V  
2.0  
0
VIN  
0.4  
0.1  
0.5  
V
V
VIN=2.7V to 7V  
VEN=VIN, VIN=2.7V to 7V  
A
µ
IEL  
VEN=0V, VIN=2.7V to 7V  
VIN=5.0V, VO=0V, VEN<VEL  
VIN=2.5V, VO=0V, VEN<VEL  
A
µ
30  
A
µ
Shutdown Supply Current  
ISD  
0.5  
2
A
µ
Note1:VIN(min)=VOUT+VDROPOUT  
6
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! Detailed Description  
! Enable  
The AME8826 family of CMOS regulators contain a  
PMOS pass transistor, voltage reference, error amplifier,  
over-current protection, and thermal shutdown.  
When pulled low, the PMOS pass transistor shuts off,  
and all internal circuits are powered down. In this state,  
the quiescent current is less than 1µA. This pin behaves  
much like an electronic switch.  
The P-channel pass transistor receives data from the  
error amplifier, over-current shutdown, and thermal pro-  
tection circuits. During normal operation, the error am-  
plifier compares the output voltage to a precision refer-  
ence. Over-current and Thermal shutdown circuits be-  
come active when the junction temperature exceeds  
140oC, or the current exceeds 2.2A. During thermal shut-  
down, the output voltage remains low. Normal operation  
is restored when the junction temperature drops below  
120oC.  
! Adjustable Version  
The adjustable version uses external feedback resis-  
tors to generate an output voltage anywhere from 1.5V to  
5.0V. Vadj is trimmed to 1.242V and VOUT is given by  
the equation:  
VOUT = Vadj ( 1 + R1 / R2 )  
! External Capacitors  
Feedback resistors R1 and R2 should be high enough  
to keep quiescent current low, but increasing R1 + R2  
will reduce stability. In general, R1 and R2 in the 10’s of  
kwill produce adequate stability, given reasonable lay-  
outprecautions.Toimprovestabilitycharacteristics,keep  
parasitics on the ADJ pin to a minimum, and lower R1  
and R2 values.  
The AME8826 is stable with an output capacitor to  
ground of 4.7µF or greater. Ceramic capacitors have the  
lowest ESR, and will offer the best AC performance. Con-  
versely, Aluminum Electrolytic capacitors exhibit the high-  
est ESR, resulting in the poorest AC response. Unfortu-  
nately, large value ceramic capacitors are comparatively  
expensive. One option is to parallel a 0.1µF ceramic  
capacitor with a 10µF Aluminum Electrolytic. The benefit  
is low ESR, high capacitance, and low overall cost.  
A second capacitor is recommended between the in-  
put and ground to stabilize Vin. The input capacitor should  
be at least 0.1µF to have a beneficial effect.  
A third capacitor can be connected between the BY-  
PASS pin and GND. This capacitor can be a low cost  
Polyester Film variety between the value of 0.001 ~  
0.01µF. A larger capacitor improves the AC ripple rejec-  
tion, but also makes the output come up slowly. This  
"Soft" turn-on is desirable in some applications to limit  
turn-on surges.  
All capacitors should be placed in close proximity to  
the pins. A "Quiet" ground termination is desirable. This  
can be achieved with a "Star" connection.  
7
AME, Inc.  
1.55A CMOS LDO  
AME8826  
Dropout Voltage VS I  
Dropout Voltage VS V  
OUT  
LOAD  
1
0.8  
0.6  
0.4  
0.2  
0
1.2  
1
I
=1.5A  
V
=1.5  
LOAD  
OUT  
1.8  
2.0  
0.8  
0.6  
0.4  
0.2  
I
=1.0A  
LOAD  
2.1  
2.8  
I
=0.5A  
LOAD  
3.3  
0
0
0
2
4
6
8
0.3  
0.6  
0.9  
1.2  
1.5  
1.8  
V
(V)  
I
(A)  
OUT  
LOAD  
Quiescent Current vs. Temperature  
Ground Current vs. V  
IN  
50  
45  
40  
35  
30  
25  
20  
15  
10  
41  
39  
37  
35  
33  
31  
29  
27  
25  
IOUT = 140mA  
OUT = 1.5V  
V
2
3
4
5
6
7
8
-45  
-5  
25  
55  
85  
115  
o
Temperature ( C)  
V
(V)  
IN  
Ground Current vs. Load Current  
Current Limit vs. V  
IN  
38.5  
38  
3
2.8  
C
C
V
= 4.7µF  
IN  
2.6  
2.4  
2.2  
2
= 4.7µF  
= 1.8V  
OUT  
37.5  
37  
OUT  
VIN = 2.5V  
V
OUT = 1.5V  
36.5  
36  
1.8  
1.6  
1.4  
1.2  
1
35.5  
35  
34.5  
0
0.25  
0.5  
0.75  
1
1.25  
1.5  
2
3
4
5
6
7
8
Load Current (mA)  
V
(V)  
IN  
8
AME, Inc.  
1.55A CMOS LDO  
AME8826  
Load Regulation vs. Temperature  
Dropout Voltage vs. Load Current(2.5V)  
400  
0.30  
0.25  
0.20  
0.15  
0.10  
115 oC  
85 oC  
350  
300  
250  
200  
150  
100  
50  
55 oC  
25 oC  
-5 oC  
-45 oC  
0.05  
0.00  
0
-45  
-5  
25  
55  
85  
115  
0.3  
0.6  
0.9  
1.2  
1.5  
o
Temperature ( C)  
Load Current (A)  
AME8826CEHAADJ vs. Temperature  
Line Transient Response  
1.244  
1.243  
1.242  
1.241  
1.240  
C
= 4.7µF  
IN  
C
OUT = 4.7µF  
T
R = TF = 1µS  
VOUT = 1.5V  
1.239  
1.238  
1.237  
1.236  
0V  
1.235  
-45  
-5  
25  
55  
85  
115  
Temperature (oC)  
Time (20mS/DIV)  
Load Step 40mA to 1.5A  
Current Limit Response  
V
= 5V  
= 4.7µF  
IN  
C
IN  
C
= 4.7µF  
OUT  
0A  
CIN = 4.7µF  
= 4.7µF  
VIN = 4.0V  
0V  
0A  
C
OUT  
I
LIM  
VOUT = 1.8V  
I
SC  
Time 1mS/DIV  
Time 500µS/DIV  
9
AME, Inc.  
1.55A CMOS LDO  
AME8826  
Overtemperature Shutdown  
Stability vs. ESR vs. I  
Load  
10000  
1000  
100  
10  
Unstable Region  
C =5µF  
L
0A  
V
C
C
= 4V  
= 4.7µF  
IN  
IN  
= 4.7µ  
F
OUT  
1
Stable Region  
0.1  
0V  
Untested Region  
0.01  
0
250  
500  
750  
1000  
1250  
1500  
ILOAD (mA)  
Time 100mS/DIV  
Stability vs. ESR vs. I  
Stability vs. ESR vs. I  
Load  
Load  
10000  
1000  
100  
10  
10000  
1000  
Unstable Region  
Unstable Region  
C =2µF  
L
100  
10  
1
C =10µF  
L
1
Stable Region  
Stable Region  
0.1  
0.1  
0.01  
Untested Region  
Untested Region  
0.01  
0.001  
0
0
250  
500  
750  
1000  
1250  
1500  
250  
500  
750  
1000  
1250  
1500  
ILOAD (mA)  
ILOAD (mA)  
10  
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! External Resistor Divider Table  
R1  
1
2
5
10  
20  
50  
100  
200  
500  
1000  
(K Ohm)  
R2(kohm)=(1.242*R1(kohm))/(Vout-1.242)  
107.07 214.14 428.28 1070.69  
115.00 230.00 575.00  
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  
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  
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  
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  
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  
157.22 393.04  
119.42 298.56 597.55  
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  
240.70 481.68 962.79  
201.62 403.44 806.49  
173.46 347.07 693.85  
152.21 304.52 608.82  
135.59 271.27 542.36  
122.24 244.56 488.98  
111.29 222.64 445.16  
102.14 204.33 408.55  
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  
188.80 377.51  
175.46 350.85 877.12  
163.88 327.70 819.26  
153.74 307.43 768.56  
144.78 289.51 723.78  
136.81 273.57 683.92  
129.67 259.29 648.23  
123.23 246.43 616.07  
117.41 234.78 586.96  
112.11 224.19 560.47  
107.27 214.51 536.27  
102.83 205.63 514.07  
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  
197.46 493.64  
189.91 474.77  
9.50  
9.15  
182.92 457.29 914.58  
176.42 441.05 882.10  
170.37 425.93 851.85  
164.72 411.80 823.61  
159.44 398.59 797.18  
154.48 386.19 772.39  
149.82 374.55 749.10  
145.43 363.58 727.17  
141.30 353.24 706.48  
137.39 343.47 686.95  
133.69 334.23 668.46  
8.82  
8.52  
8.24  
7.97  
7.72  
7.49  
7.27  
7.06  
6.87  
6.68  
11  
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! External Resistor Divider Table (contd.)  
R1  
1
2
5
10  
20  
50  
100  
200  
500  
1000  
(K Ohm)  
R2(kohm)=(1.242*R1(kohm))/(Vout-1.242)  
Vout  
3.15  
3.20  
3.25  
3.30  
3.35  
3.40  
3.45  
3.50  
3.55  
3.60  
3.65  
3.70  
3.75  
3.80  
3.85  
3.90  
3.95  
4.00  
4.05  
4.10  
4.15  
4.20  
4.25  
4.30  
4.35  
4.40  
4.45  
4.50  
4.55  
4.60  
4.65  
4.70  
4.75  
4.80  
4.85  
4.90  
4.95  
5.00  
0.65  
0.63  
0.62  
0.60  
0.59  
0.58  
0.56  
0.55  
0.54  
0.53  
0.52  
0.51  
0.50  
0.49  
0.48  
0.47  
0.46  
0.45  
0.44  
0.43  
0.43  
0.42  
0.41  
0.41  
0.40  
0.39  
0.39  
0.38  
0.38  
0.37  
0.36  
0.36  
0.35  
0.35  
0.34  
0.34  
0.33  
0.33  
1.30  
1.27  
1.24  
1.21  
1.18  
1.15  
1.13  
1.10  
1.08  
1.05  
1.03  
1.01  
0.99  
0.97  
0.95  
0.93  
0.92  
0.90  
0.88  
0.87  
0.85  
0.84  
0.83  
0.81  
0.80  
0.79  
0.77  
0.76  
0.75  
0.74  
0.73  
0.72  
0.71  
0.70  
0.69  
0.68  
0.67  
0.66  
3.25  
3.17  
3.09  
3.02  
2.95  
2.88  
2.81  
2.75  
2.69  
2.63  
2.58  
2.53  
2.48  
2.43  
2.38  
2.34  
2.29  
2.25  
2.21  
2.17  
2.14  
2.10  
2.06  
2.03  
2.00  
1.97  
1.94  
1.91  
1.88  
1.85  
1.82  
1.80  
1.77  
1.75  
1.72  
1.70  
1.67  
1.65  
6.51  
6.34  
6.19  
6.03  
5.89  
5.76  
5.63  
5.50  
5.38  
5.27  
5.16  
5.05  
4.95  
4.86  
4.76  
4.67  
4.59  
4.50  
4.42  
4.35  
4.27  
4.20  
4.13  
4.06  
4.00  
3.93  
3.87  
3.81  
3.75  
3.70  
3.64  
3.59  
3.54  
3.49  
3.44  
3.40  
3.35  
3.30  
13.02  
12.69  
12.37  
12.07  
11.78  
11.51  
11.25  
11.00  
10.76  
10.53  
10.32  
10.11  
9.90  
9.71  
9.52  
9.35  
9.17  
9.01  
8.85  
8.69  
8.54  
8.40  
8.26  
8.12  
7.99  
7.87  
7.74  
7.62  
7.51  
7.40  
7.29  
7.18  
7.08  
6.98  
6.88  
6.79  
6.70  
6.61  
32.55  
31.72  
30.93  
30.17  
29.46  
28.78  
28.13  
27.50  
26.91  
26.34  
25.79  
25.26  
24.76  
24.28  
23.81  
23.36  
22.93  
22.52  
22.12  
21.73  
21.35  
20.99  
20.64  
20.31  
19.98  
19.66  
19.36  
19.06  
18.77  
18.49  
18.22  
17.96  
17.70  
17.45  
17.21  
16.98  
16.75  
16.52  
65.09  
63.43  
61.85  
60.35  
58.92  
57.55  
56.25  
55.00  
53.81  
52.67  
51.58  
50.53  
49.52  
48.55  
47.62  
46.73  
45.86  
45.03  
44.23  
43.46  
42.71  
41.99  
41.29  
40.61  
39.96  
39.33  
38.72  
38.12  
37.55  
36.99  
36.44  
35.92  
35.40  
34.91  
34.42  
33.95  
33.50  
33.05  
130.19 325.47 650.94  
126.86 317.16 634.32  
123.71 309.26 618.53  
120.70 301.75 603.50  
117.84 294.59 589.18  
115.11 287.77 575.53  
112.50 281.25 562.50  
110.01 275.02 550.04  
107.63 269.06 538.13  
105.34 263.36 526.72  
103.16 257.89 515.78  
101.06 252.64 505.29  
99.04  
97.11  
95.25  
93.45  
91.73  
90.07  
88.46  
86.91  
85.42  
83.98  
82.58  
81.23  
79.92  
78.66  
77.43  
76.24  
75.09  
73.97  
72.89  
71.83  
70.81  
69.81  
68.85  
67.91  
66.99  
66.10  
247.61 495.22  
242.77 485.54  
238.11 476.23  
233.63 467.27  
229.32 458.64  
225.16 450.33  
221.15 442.31  
217.28 434.57  
213.55 427.10  
209.94 419.88  
206.45 412.90  
203.07 406.15  
199.81 399.61  
196.64 393.29  
193.58 387.16  
190.61 381.22  
187.73 375.45  
184.93 369.86  
182.22 364.44  
179.58 359.17  
177.02 354.05  
174.54 349.07  
172.12 344.24  
169.76 339.53  
167.48 334.95  
165.25 330.49  
Note: Small load(greater than 2 mA) is necessary as R1 or R2 is larger than 50 K Ohm. Otherwise, outputvoltage  
probably cannot be pulled down to 0 V on disable mode.  
12  
AME, Inc.  
1.55A CMOS LDO  
AME8826  
! Package Dimension  
SO-8  
MILLIMETERS  
INCHES  
MIN MAX  
SYMBOLS  
Top View  
Side View  
MIN  
1.35  
0.10  
MAX  
1.75  
0.25  
0.05315 0.0689  
0.00394 0.00984  
0.058 REF  
A
A1  
A2  
B
C
D
E
C
1.473 REF  
E
0.33  
0.19  
4.80  
3.80  
0.51  
0.25  
5.00  
4.00  
0.01299 0.02008  
0.00748 0.00984  
0.18898 0.19685  
0.14961 0.15748  
0.050 BSC  
D
L
c
1.27 BSC  
e
Front View  
0.40  
-
1.27  
0.10  
8o  
0.01575  
0.05  
0.004  
8o  
L
o
7 (4X)  
-
y
0o  
0o  
è
e
B
TO-263-5  
MILLIMETERS  
INCHES  
SYMBOLS  
MIN  
10.050  
8.280  
4.310  
0.660  
1.140  
MAX  
10.668  
9.169  
4.597  
0.910  
1.400  
MIN  
0.396  
0.326  
0.170  
0.026  
0.045  
MAX  
0.420  
0.361  
0.181  
0.036  
0.055  
Top View  
Side View  
A
A
B
C
D
E
E
1.70REF  
0.067 REF  
G
H
K
L
H
14.605  
1.143  
0.000  
0.330  
2.280  
0o  
15.875  
1.680  
0.305  
0.580  
2.800  
8o  
0.575  
0.045  
0.000  
0.013  
0.090  
0o  
0.625  
0.066  
0.012  
0.023  
0.110  
8o  
P
N
P
W
D
G
N
R
W
0.25REF  
0.01REF  
R
Front View  
C
13  
Life Support Policy:  
These products of AME, Inc. are not authorized for use as critical components in life-support  
devices or systems, without the express written approval of the president  
of AME, Inc.  
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and  
advises its customers to obtain the latest version of relevant information.  
AME, Inc. , September 2003  
Document: 2006-DS8803/8814-G  
E-Mail:Longman@rccn.com.cn  
Address:Room 2101, No.2 Building Yulan garden, No.50 Puhuitang Rd,Shanghai,PRC  
zip:200030  
Tel : 86-21-64285731/32 ext:8033  
Fax: 86-21-64393342  
Sales Manager:Longman Xu  

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