AME, Inc.
AME8826
1.55A CMOS LDO
!
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.
!
Functional Block Diagram
(Fixed Versions)
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
R1
BYPASS
AMP
EN
1.242V
R2
GND
!
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
!
Functional Block Diagram
(Adjustable Version)
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
AMP
EN
ADJ
(external)
R1
1.242V
(external)
R2
GND
!
Typical Application
IN
IN
BYP
GND
OUT
OUT
!
Applications
"
"
"
"
"
Instrumentation
Portable Electronics
Wireless Devices
PC Peripherals
Battery Powered Widgets
C1
5V 1µF
µ
C2
1nF
AME8826
EN
C3
4.7µF
µ
1
AME, Inc.
AME8826
1.55A CMOS LDO
!
Pin Configuration
TO-263(DDPAK-5)
Top View
AME 8826AEDVxxx
1. EN
2. V
IN
3. GND
4. V
OUT
5. BYP
TO-263(DDPAK-5)
Top View
AME8826BEDVADJ
1. EN
2. V
IN
3. GND
4. V
OUT
5. ADJ
AME8826
AME8826
1
2
3
4
5
1
2
3
4
5
SO-8
Top View
8
7
6
5
SO-8
Top View
AME 8826AEHAxxx
1. BYP
2. GND
3. GND
4. EN
5. V
IN
6. GND
7. GND
8. V
OUT
8
7
6
5
AME8826
AME8826
AME 8826BEHAADJ
1. ADJ
2. GND
3. GND
4. EN
5. V
IN
6. GND
7. GND
8. V
OUT
1
2
3
4
1
2
3
4
SO-8
Top View
8
7
6
5
AME8826
1
2
3
4
AME 8826CEHAADJ
1. EN
2. V
IN
3. V
OUT
4. ADJ
5. GND
6. GND
7. GND
8. GND
2
AME, Inc.
AME8826
1.55A CMOS LDO
!
Ordering Information
Part Number
AME8826AEDV150
Marking
AME8826
AEDV150
yyww
AME8826
AEDV180
yyww
AME8826
AEDV250
yyww
AME8826
AEDV330
yyww
AME8826
AEDV475
yyww
AME8826
AEDV500
yyww
AME8826
BEDVADJ
yyww
AME8826
AEHA150
yyww
AME8826
AEHA180
yyww
AME8826
AEHA250
yyww
AME8826
AEHA330
yyww
AME8826
AEHA475
yyww
Output Voltage
1.50
Package
DDPAK-5
Operating Temp. Range
- 40
o
C to + 85
o
C
AME8826AEDV180
1.80
DDPAK-5
- 40
o
C to + 85
o
C
AME8826AEDV250
2.50
DDPAK-5
- 40
o
C to + 85
o
C
AME8826AEDV330
3.30
DDPAK-5
- 40
o
C to + 85
o
C
AME8826AEDV475
4.75
DDPAK-5
- 40
o
C to + 85
o
C
AME8826AEDV500
5.00
DDPAK-5
- 40
o
C to + 85
o
C
AME8826BEDVADJ
ADJ
DDPAK-5
- 40
o
C to + 85
o
C
AME8826AEHA150
1.50
SO-8
- 40
o
C to + 85
o
C
AME8826AEHA180
1.80
SO-8
- 40
o
C to + 85
o
C
AME8826AEHA250
2.50
SO-8
- 40
o
C to + 85
o
C
AME8826AEHA330
3.30
SO-8
- 40
o
C to + 85
o
C
AME8826AEHA475
4.75
SO-8
- 40
o
C to + 85
o
C
3
AME, Inc.
AME8826
1.55A CMOS LDO
!
Ordering Information (contd.)
Part Number
AME8826AEHA500
Marking
AME8826
AEHA500
yyww
AME8826
BEHAADJ
yyww
AME8826
CEHAADJ
yyww
Output Voltage
5.00
Package
SO-8
Operating Temp. Range
- 40
o
C to + 85
o
C
AME8826BEHAADJ
ADJ
SO-8
- 40
o
C to + 85
o
C
AME8826CEHAADJ
ADJ
SO-8
- 40
o
C to + 85
o
C
Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.
4
AME, Inc.
AME8826
1.55A CMOS LDO
!
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Output Voltage
ESD Classification
Maximum
8
P
D
/ (V
IN
- V
O
)
GND - 0.3 to V
IN
+ 0.3
B
Unit
V
mA
V
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
o
o
C
C
!
Thermal Information
Parameter
Thermal Resistance (
θ
jc
)
TO-263 (DDPAK-5)
SO-8
TO-263 (DDPAK-5)
SO-8
Maximum
5
20**
3.00
2.5
150
300
Unit
o
C/W
Internal Power Dissipation (P
D
)
(
∆
T = 100
o
C)*
Maximum Junction Temperature
Maximum Lead Temperature (10 Sec)
W
o
o
C
C
* Assuming a heat sink capable of twice times (θjc)
** Estimated
5
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