AME, Inc.
AME8822
n
General Description
The AME8822 family of positive, linear regulators fea-
ture low quiescent current (30µA typ.) low dropout volt-
age and excellent PSRR, thus making them ideal for tele-
communications and other battery applications.
These rugged devices have both thermal shutdown and
current limit to prevent device failure under the "Worst"
operating conditions.
The AME8822 is stable with an output capacitance of
1µF or larger.
EN
R1
High PSRR, 250mA CMOS LDO
n
Functional Block Diagram
IN
Overcurrent
Shutdown
OUT
Thermal
Shutdown
-
+
AMP
n
Features
R2
l
Very Low Dropout Voltage
l
Fast Turn on Time 100µS(Typ.)
l
Guaranteed 250mA Output
l
30µA Quiescent Current
l
Over-Temperature Shutdown
l
Excellent PSRR (Typ. 65dB)
l
Power-Saving Shutdown Mode in SOT-25,
SOT-23 & SC-70-5 Packages
l
Low Temperature Coefficient
l
All AME's Lead Free Products Meet RoHS
Standards.
C1
1µF
Vref
GND
n
Typical Application
IN
EN
IN
OUT
AME8822
OUT
GND
C2
1µF
n
Applications
l
Instrumentation
l
Portable Electronics
l
Wireless Devices
l
PC Peripherals
IN
IN
OUT
AME8822
OUT
GND
C1
1µF
C2
1µF
Rev.D.05
1
AME, Inc.
AME8822
n
Pin Configuration
SOT-25
Top View
5
4
High PSRR, 250mA CMOS LDO
SOT-23
Top View
AME8822AEEV
1. IN
2. GND
3
AME8822AEET
1. GND
2. OUT
AME8822
3. EN
4. NC
5. OUT
AME8822
3. IN
1
2
3
1
2
* Die Attach:
Conductive Epoxy
SC-70-5
Top View
5
4
* Die Attach:
Non-Conductive Epoxy
AME8822AEIV
1. IN
2. GND
AME8822
3. EN
4. NC
5. OUT
1
2
3
* Die Attach:
Conductive Epoxy
n
Pin Description
AME8822AEET SOT-23
Pin Number
1
2
Pin Name
GND
OUT
Ground connection pin.
Pin Description
LDO voltage regulator output pin.
It should be decoupled with a 1mF or greater value low ESR ceramic
capacitor.
Input voltage pin.
It should be decoupled with 1mF or greater capacitor.
3
IN
2
Rev.D.05
AME, Inc.
AME8822
n
Pin Description
AME8822AEEV SOT-25 / AME8822AEIV SC-70-5
High PSRR, 250mA CMOS LDO
Pin Number
1
2
3
4
5
Pin Name
IN
GND
EN
NC
OUT
Pin Description
Input voltage pin.
It should be decoupled with 1mF or greater capacitor.
Ground connection pin.
Enable pin.
When pulled low, the PMOS pass transistor turns off, current consuming
less than 1mA.
No Connection.
LDO voltage regulator output pin.
It should be decoupled with a 1mF or greater value low ESR ceramic
capacitor.
Rev.D.05
3
AME, Inc.
AME8822
n
Ordering Information
AME8822 x x x x xxx x
Special Feature
Output Voltage
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
High PSRR, 250mA CMOS LDO
Pin
Configuration
A: 1. IN
(SOT-25)
2. GND
3. EN
4. NC
5. OUT
A: 1. GND
(SOT-23)
2. OUT
3. IN
A: 1. IN
(SC-70-5)
2. GND
3. EN
4. NC
5. OUT
Operating Ambient
Temperature Range
E: -40
O
C to 85
O
C
Package
Type
E: SOT-2X
I: SC-70
Number
of
Pins
T: 3
V: 5
Output Voltage
Special Feature
120:
130:
150:
180:
250:
260:
270:
280:
290:
285:
300:
310:
330:
V=1.2V
V=1.3V
V=1.5V
V=1.8V
V=2.5V
V=2.6V
V=2.7V
V=2.8V
V=2.9V
V=2.85V
V=3.0V
V=3.1V
V=3.3V
Z: Lead free
4
Rev.D.05
嵌入式系统
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