AME
AME8755
n
General Description
The AME8755 is highly accurate, dual channel, high
PSRR, low quiescent current CMOS LDO. The AME8755
includes a reference voltage source, error amplifiers, over
current limit and thermal shutdown and consumes only
70µA(typical) quiescent current at no load with both chan-
nels enabled. The EN function allows the output of each
channel to be turned on and off independently.
High PSRR, Low Quiescent Current,
150mA Dual CMOS LDO
n
Typical Application
V
OUT 2
EN2
V
IN
IN
OUT2
AME8755
OUT1
V
OUT1
C2
1µF
C3
1µF
EN1
C1
1µF
GND
n
Features
l
Guaranteed 150mA Output
l
Accurate to within + 2%
l
1.2V to 3.3V Factory-Preset Output
l
Over Current Protection
l
Over Temperature Shutdown
l
High PSRR (Typ. 70dB)
l
Low Quiescent Current (Typ. 70µA)
l
All AME's Green Products Meet RoHS
Standards.
n
Applications
l
Mobile Phones
l
Digital Cameras
l
PDAs
l
Wireless LAN Applications
Rev. A.01
1
AME
AME8755
n
Function Block Diagram
High PSRR, Low Quiescent Current,
150mA Dual CMOS LDO
EN2
Overcurrent
Limit
OUT2
Bandgap
Reference
Thermal
Shutdown
IN
Overcurrent
Limit
OUT1
EN1
GND
2
Rev. A.01
AME
AME8755
n
Pin Configuration
SOT-26
Top View
6
5
4
High PSRR, Low Quiescent Current,
150mA Dual CMOS LDO
SOT-26
Top View
AME8755-AEYxxxxxx
1. OUT1
2. IN
3. OUT2
4. EN2
5. GND
6
5
4
AME8755-BEYxxxxxx
1. EN1
2. IN
AME8755
AME8755
3. EN2
4. OUT2
5. GND
1
2
3
6. EN1
* Die Attach:
Conductive Epoxy
1
2
3
6. OUT1
* Die Attach:
Conductive Epoxy
Rev. A.01
3
AME
AME8755
n
Pin Description
Pin Name
OUT1
High PSRR, Low Quiescent Current,
150mA Dual CMOS LDO
Pin Description
LDO voltage regulator output pin.
It should be decoupled with a 1
µ
F or greater value low ESR ceramic capacitor.
Input voltage pin.
It should be decoupled with 1µF or greater capacitor.
LDO voltage regulator output pin.
It should be decoupled with a 1µF or greater value low ESR ceramic capacitor.
Enable pin.
When pulled low, the PMOS pass transistor turns off OUT2, current consuming
less than 1µA.
Ground connection pin.
Enable pin.
When pulled low, the PMOS pass transistor turns off OUT1, current consuming
less than 1
µ
A.
IN
OUT2
EN2
GND
EN1
4
Rev. A.01
AME
AME8755
n
Ordering Information
AME8755 - x x x xxx xxx
High PSRR, Low Quiescent Current,
150mA Dual CMOS LDO
Output Voltage 2
Output Voltage 1
Number of Pins
Package Type
Pin Configuration
Pin
Configuration
A
(SOT-26)
Package
Type
E: SOT-2X
Number of
Pins
Y:
6
Output
Voltage1
(Dual LDOs)
330:
300:
285:
280:
180:
120:
3.3V
3.0V
2.85V
2.8V
1.8V
1.2V
Output
Voltage2
(Dual LDOs)
330:
300:
285:
280:
180:
120:
3.3V
3.0V
2.85V
2.8V
1.8V
1.2V
1. OUT1
2. IN
3. OUT2
4. EN2
5. GND
6. EN1
1. EN1
2. IN
3. EN2
4. OUT2
5. GND
6. OUT1
B
(SOT-26)
Rev. A.01
5
模拟电子
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