AME
AME8816
n
General Description
The AME8816 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" operating conditions.
In applications requiring a low noise, regulated supply,
place a 1000pF capacitor between Bypass and Ground.
The AME8816 is stable with an output capacitance of
4.7µF or greater.
1.242V
R2
GND
1.5A CMOS LDO
n
Functional Block Diagram
(Fixed Versions)
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
R1
BYPASS
AMP
EN
n
Features
l
Very Low Dropout Voltage
l
Guaranteed 1.5A Output
l
Accurate to within 1.5%
l
45µA Quiescent Current Typically
l
Over-Temperature Shutdown
l
Current Limiting
l
Short Circuit Current Fold-back
l
Noise Reduction Bypass Capacitor (Fixed
Versions)
l
Power-Saving Shutdown Mode
l
Low Temperature Coefficient
l
Adjustable Version
l
All AME’s Lead Free Products Meet RoHS
Standards
(Adjustable Version)
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
AMP
R1
EN
ADJ
(external)
1.242V
R2
(external)
GND
n
Typical Application
IN
IN
OUT
OUT
AME8816
BYP
GND
EN
n
Applications
l
Instrumentation
l
Portable Electronics
l
Wireless Devices
l
PC Peripherals
l
Battery Powered Widgets
Rev.H.04
C1
1µF
C2
1000pF
C3
4.7µF
1
AME
AME8816
n
Pin Description
Pin Name
IN
GND
Pin Description
Input voltage pin.
It should be decoupled with 1
µ
F or greater capacitor.
Ground connection pin.
Enable pin.
When pulled low, the PMOS pass transistor turns off, current consuming less
than 1µA.
Bypass capacitor connection.
To improve AC ripple rejection, connect a 1000pF capacitor to GND.
This will also provide a soft-start function.
LDO voltage regulator output pin.
It should be decoupled with a 4.7µF or greater value low ESR ceramic capacitor.
Feedback output voltage for adjustable device.
1.5A CMOS LDO
EN
BYP
OUT
ADJ
Rev.H.04
3
AME
AME8816
n
Ordering Information
Part Number
AME8816AEDV150
1.5A CMOS LDO
Marking*
AME8816
AEDV150
yyww
AME8816
AEDV150
yyww
AME8816
AEDV180
yyww
AME8816
AEDV180
yyww
AME8816
AEDV250
yyww
AME8816
AEDV250
yyww
AME8816
AEDV330
yyww
AME8816
AEDV330
yyww
AME8816
AEDV475
yyww
AME8816
AEDV475
yyww
AME8816
AEDV500
yyww
AME8816
AEDV500
yyww
Output Voltage
1.50
Package
TO-263-5
Operating Ambient
Temperature Range
- 40
o
C to +85
o
C
AME8816AEDV150Z
1.50
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV180
1.80
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV180Z
1.80
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV250
2.50
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV250Z
2.50
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV330
3.30
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV330Z
3.30
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV475
4.75
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV475Z
4.75
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV500
5.00
TO-263-5
- 40
o
C to +85
o
C
AME8816AEDV500Z
5.00
TO-263-5
- 40
o
C to +85
o
C
Note: yyww represents the date code
* A line on top of the first character represents lead free plating such as AME8816
Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package type.
Rev.H.04
5
嵌入式系统
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