AME, Inc.
AME8845
3A CMOS LDO
n
General Description
The AME8845 family of linear regulators feature low
quiescent current (100µA typ.) with low dropout voltage,
making them ideal for battery applications. It is available
in TO-252, SOT-223, TO-263 and TO-220 packages. The
space-efficient TO-252, SOT-223 package is attractive for
"Pocket" and "Hand Held" 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.
The AME8845 is stable with an output capacitance of
2.2µF or greater.
n
Functional Block Diagram
IN
Overcurrent
Shutdown
OUT
Thermal
Shutdown
EN
R1
-
+
AMP
R2
Vref
n
Features
l
Very Low Dropout Voltage
l
Guaranteed 3A Output
l
Accurate to within 1.5%
l
100µA Quiescent Current Typically
l
Over-Temperature Shutdown
l
Current Limiting
l
Short Circuit Current Fold-back
l
Space-Saving TO-252, SOT-223, TO-263
and TO-220 Package
l
Low Temperature Coefficient
0.1µF
VIN
IN
EN
GND
n
Typical Application
SENSE
AME8845
OUT
GND
2.2µF
n
Applications
l
Instrumentation
l
Portable Electronics
l
Wireless Devices
l
PC Peripherals
l
Battery Powered Widgets
1
AME, Inc.
AME8845
3A CMOS LDO
n
Pin Configuration
TO-252-2
Top View
AME 8845AECSxxx
1. V
IN
2. GND
(heat sink)
3. V
OUT
1
2
3
1
2
3
TO-252-2
Top View
AME 8845BECSxxx
1. GND
2. V
OUT
(heat sink)
3. V
IN
AME8845
AME8845
SOT-223
Top View
AME8845AEGTxxx
1. V
IN
2. GND
3. V
OUT
SOT-223
Top View
AME8845BEGTxxx
1. GND
2. V
OUT
3. V
IN
AME8845
AME8845
1
2
3
1
2
3
TO-220
Top View
AME 8845AEBTxxx
1. V
IN
TO-220
Top View
AME 8845BEBTxxx
1. GND
2. V
OUT
(heat sink)
3. V
IN
AMExxxx
AME8845
2. GND
(heat sink)
3. V
OUT
AMExxxx
AME8845
1
2
3
1
2
3
2
AME, Inc.
AME8845
3A CMOS LDO
n
Pin Configuration
TO-263-3L
Top View
AME 8845AEDTxxx
1. V
IN
TO-263-3L
Top View
AME 8845BEDTxxx
1. GND
(heat sink)
AME8845
2. GND
(heat sink)
3. V
OUT
AME8845
2. V
OUT
3. V
IN
1
2
3
1
2
3
TO-263-5L
Top View
AME 8845AEDVxxx
1. V
IN
2. EN
3. GND
(heat sink)
4. SENSE
5. V
OUT
AME8845
1
2 3 4 5
3
AME, Inc.
AME8845
3A CMOS LDO
n
Ordering Information
AME8845 x x x x xxx x
Special Feature
Voltage
Number of Pin
Package
Operating Temperature
Pin Configuration
Pin Configuration
Pin
Configuration
Operating
Temperature
Range
E: -40
O
C to 85
O
C
Number
Package Type
of
Pins
B:
C:
D:
G:
TO-220
TO-252
TO-263
SOT-223
S: 2
T: 3
V: 5
Voltage
Special Feature
A:
1. VIN
(TO-252) 2. GND
3. VOUT
B:
1. GND
2. VOUT
3. VIN
150:
180:
250:
330:
V=1.5V
V=1.8V
V=2.5V
V=3.3V
Z: Lead Free
A:
1. VIN
(TO-263-3) 2. GND
3. VOUT
B:
1. GND
2. VOUT
3. VIN
A:
1. VIN
(TO-263-5) 2. EN
3. GND
4. SENSE
5. VOUT
A:
1. VIN
(TO-220) 2. GND
3. VOUT
B:
1. GND
2. VOUT
3. VIN
A:
1. VIN
(SOT-223) 2. GND
3. VOUT
B:
1. VIN
(SOT-223) 2. GND
3. VOUT
4
AME, Inc.
AME8845
3A CMOS LDO
n
Ordering Information
Part Number
AME8845AEBT150
Marking*
AME8845
AEBT150
yyww
AME8845
AEBT150
yyww
AME8845
BEBT150
yyww
AME8845
BEBT150
yyww
AME8845
AEDT150
yyww
AME8845
AEDT150
yyww
AME8845
BEDT150
yyww
AME8845
BEDT150
yyww
AME8845
AEDV150
yyww
AME8845
AEDV150
yyww
AME8845
AEBT180
yyww
AME8845
AEBT180
yyww
AME8845
BEBT180
yyww
Output Voltage
1.50
Package
TO-220
Operating Temp. Range
- 40
o
C to + 85
o
C
AME8845AEBT150Z
1.50
TO-220
- 40
o
C to + 85
o
C
AME8845BEBT150
1.50
TO-220
- 40
o
C to + 85
o
C
AME8845BEBT150Z
1.50
TO-220
- 40
o
C to + 85
o
C
AME8845AEDT150
1.50
TO-263-3
- 40
o
C to + 85
o
C
AME8845AEDT150Z
1.50
TO-263-3
- 40
o
C to + 85
o
C
AME8845BEDT150
1.50
TO-263-3
- 40
o
C to + 85
o
C
AME8845BEDT150Z
1.50
TO-263-3
- 40
o
C to + 85
o
C
AME8845AEDV150
1.50
TO-263-5
- 40
o
C to + 85
o
C
AME8845AEDV150Z
1.50
TO-263-5
- 40
o
C to + 85
o
C
AME8845AEBT180
1.80
TO-220
- 40
o
C to + 85
o
C
AME8845AEBT180Z
1.80
TO-220
- 40
o
C to + 85
o
C
AME8845BEBT180
1.80
TO-220
- 40
o
C to + 85
o
C
Note: yyww/ yww represents the date code
* A line on top of the first letter represents lead free plating such as AME8845
Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability.
5
电子工程世界
嵌入式系统
