AME, Inc.
AME8833/8834
High PSRR, 150mA CMOS LDO
n
General Description
The AME8833 family of positive, linear regulators fea-
ture low quiescent current (50µA typ.) low dropout volt-
age and excellent PSRR, thus making them ideal for Tele-
communications and other battery applications. The ul-
tra-small SC-70 package is attractive for "Pocket" and
"Hand Held" applications.
AME8834’s output voltage can be adjusted with an
external resister divider.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under the
"Worst" of operating conditions.
As an additional feature, the AME8833/8834 is stable
with an output capacitance of just extended 0.22µF or
greater.
n
Functional Block Diagram
IN
Overcurrent
Shutdown
OUT
Thermal
Shutdown
SHDN
R1
-
AMP
+
R2
Vref
n
Features
l
l
l
l
l
l
l
l
l
l
l
l
l
l
Stable with only 0.22µF output Cap
Very Low Dropout Voltage
Guaranteed 150mA Output
Accurate to within 1.0%
50µA Quiescent Current
Over-Temperature Shutdown
Current Limiting
Short Circuit Current Fold-back
Excellent PSRR (Typ. 70dB)
Power-Saving Shutdown Mode
Ultra-small SC-70 and SOT-25-L Package
Factory Pre-set Output Voltages
Low Temperature Coefficient
Input Voltage Range (2V - 5.5V)
GND
n
Typical Application
IN
SHDN
IN
OUT
GND
OUT
AME8833
C2
0.22µF
µ
C1
1µF
µ
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Applications
l
l
l
l
l
l
l
l
Cellular Phones
Instrumentation
Portable Electronics
Wireless Devices
Cordless Phones
PC Peripherals
Battery Powered Widgets
Electronic Scales
OUT
IN
SHDN
IN
OUT
AME8834
GND
R1
V
REF
R2
C1
C2
l
Cameras
l
Telecommunications
1
AME, Inc.
AME8833/8834
High PSRR, 150mA CMOS LDO
n
Ordering Information
Part Number
AME8833AEIV180
AME8833AEIV250
AME8833AEIV270
AME8833AEIV280
AME8833AEIV285
AME8833AEIV300
AME8833AEIV320
AME8833AEIV330
AME8833AEEV180L
AME8833AEEV250L
AME8833AEEV270L
AME8833AEEV280L
AME8833AEEV285L
AME8833AEEV300L
AME8833AEEV330L
AME8833AEIV180Z
AME8833AEIV250Z
AME8833AEIV280Z
AME8833AEIV285Z
AME8833AEIV300Z
AME8833AEIV330Z
AME8834AEIVADJ
Marking
AWAw
AWBw
AXFw
AWDw
AVZw
AWEw
AXGw
AWCw
AWMww
AWNww
AXEww
AWOww
AWPww
AWQww
AWRww
AWAw
AWBw
AWDw
AVZw
AWEw
AWCw
AWJw
Output Voltage
1.8V
2.5V
2.7V
2.8V
2.85V
3.0V
3.2V
3.3V
1.8V
2.5V
2.7V
2.8V
2.85V
3.0V
3.3V
1.8V
2.5V
2.8V
2.85V
3.0V
3.3V
Adjustable
Package
SC-70
SC-70
SC-70
SC-70
SC-70
SC-70
SC-70
SC-70
SOT-25
SOT-25
SOT-25
SOT-25
SOT-25
SOT-25
SOT-25
SC-70
SC-70
SC-70
SC-70
SC-70
SC-70
SC-70
Operating Temp. Range
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
Note: w represents date code ( A thru Z ) : 2 work weeks per character.
Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.
5
ADI Reference Circuit
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