AME, Inc.
AME8750
n
General Description
The AME8750 dual, low dropout, linear regulators op-
erate from higher V
OUT
+V
DROPOUT
to 5.5V input and deliver
up to 150mA / 150mA output current each. It has a by-
pass pin option allows users to decouple the bandgap
reference for reducing the output noise. Low dropout volt-
age and low quiescent current(70µA typ.) make them ideal
for battery applications.
The AME8750 is available with a wide variety of voltage
options as standard and can be trimmed to 1.5% accu-
racy.
For protection purpose, AME8750 has thermal shut-
down to prevent device failure under the
“
worst” operat-
ing conditions.
Low-Dropout
150mA / 150mA Dual CMOS Regulator
n
Functional Block Diagram
EN1
ON/OFF
Control
Error
Amp1
Current
Limit
V
OUT1
R11
VR1
Each
Circuit
R12
V
I N
GND
Error
Amp2
Current
Limit
VR2
Each
Circuit
Voltage
Reference
V
OUT2
R21
EN2
ON/OFF
Control
R22
n
Features
l
Very Low Dropout Voltage
l
Guaranteed 150mA / 150mA Each Output
l
Accurate to Within 1.5% For Both Outputs
l
Typical 70
µA
Quiescent Current
l
Over-Temperature Shutdown
l
Current Limiting
l
Noise Reduction Bypass Cap
l
Power-Saving Shutdwon Mode
l
All AME's Lead Free Product Meet RoHS
Standards
n
Typical Applications
AME8750AEEY
V
IN
IN
EN
V
OUT1
OUT1
AME8750
OUT2
BYP
GND
V
OUT2
1µF
10nF
2.2µF
2.2µF
AME8750BEEY / AME8750AEVA
n
Applications
l
Cellular Phones
l
Palm / Notebook
l
Battery Power Equipment
l
Handheld Widgets
V
IN
IN
EN1
OUT1
V
OUT1
AME8750
EN2
GND
OUT2
V
OUT2
1µF
2.2µF
2.2µF
Rev.G.02
1
AME, Inc.
AME8750
n
Pin Configuration
SOT-26 / TSOT-26
Top View
6
5
4
Low-Dropout
150mA / 150mA Dual CMOS Regulator
SOT-26 / TSOT-26
Top View
AME 8750AEEY
1. OUT2
2. GND
6
5
4
AME 8750BEEY
1. OUT2
2. GND
AME8750
3. BYP
4. EN
5. IN
AME8750
3. EN1
4. EN2
5. IN
1
2
3
6. OUT1
* Die Attach:
Conductive Epoxy
1
2
3
6. OUT1
* Die Attach:
Conductive Epoxy
DFN-8
(3mmx3mmx0.75mm)
Top View
8
7
6
5
AME 8750AEVA
1. IN
2. EN1
3. EN2
AME8750
1
2
3
4
4. NC
5. GND
6. NC
7. OUT2
8. OUT1
* Die Attach:
Conductive Epoxy
Note:
The area enclosed by dashed line represents Exposed Pad and connect to GND.
2
Rev. G.02
AME, Inc.
AME8750
n
Pin Description
AME8750AEEY
Low-Dropout
150mA / 150mA Dual CMOS Regulator
Pin Number
1
Pin Name
OUT2
Description
Regulator 2 Output. Sources up to 150mA continuous current.
Bypass with a 2.2µF (< 0.5Ω typ ESR) capacitor to GND.
Ground. This pin also functions as heatsink.
Solder to a large pad or the circuit-board ground plane to maximize
thermal dissipation.
Reference Noise Bypass. Bypass with a low leakage 10nF ceramic
capacitor for reduced noise at both outputs.
Shutdown control input, active low.
Tie this pin to or above 2.4V to enable the device.
Tie this pin to or below 0.4V to turn off the device.
Regulator Input.
Supply voltage can range from Higher V
OUT
+V
DROPOUT
to 5.5V. This
input also supplies the on-chip reference. Bypass with 1µF to GND.
Regulator 1 Output. Sources up to 150mA continuous current.
Bypass with a 2.2µF (< 0.5Ω typ ESR) capacitor to GND.
2
GND
3
BYP
4
EN
5
IN
6
OUT1
AME8750BEEY
Pin Number
1
Pin Name
OUT2
Description
Regulator 2 Output. Sources up to 150mA continuous current.
Bypass with a 2.2µF (< 0.5Ω typ ESR) capacitor to GND.
Ground. This pin also functions as heatsink.
Solder to a large pad or the circuit-board ground plane to maximize
thermal dissipation.
Shutdown 1 control input, active low.
Tie this pin to or above 2.4V to enable the device.
Tie this pin to or below 0.4V to turn off the device.
Shutdown 2 control input, active low.
Tie this pin to or above 2.4V to enable the device.
Tie this pin to or below 0.4V to turn off the device.
Regulator Input.
Supply voltage can range from Higher V
OUT
+V
DROPOUT
to 5.5V. This
input also supplies the on-chip reference. Bypass with 1µF to GND.
Regulator 1 Output. Sources up to 150mA continuous current.
Bypass with a 2.2µF (< 0.5Ω typ ESR) capacitor to GND.
2
GND
3
EN1
4
EN2
5
IN
6
OUT1
Rev.G.02
3
AME, Inc.
AME8750
n
Pin Description
AME8750AEVA
Low-Dropout
150mA / 150mA Dual CMOS Regulator
Pin Number
1
Pin Name
IN
Description
Regulator Input.
Supply voltage can range from higher V
OUT
+V
DROPOUT
to 5.5V. This
input also supplies the on-chip reference. Bypass with 1µF to GND.
Shutdown 1 control input, active low.
Tie this pin to or above 2.4V to enable the device.
Tie this pin to or below 0.4V to turn off the device.
Shutdown 2 control input, active low.
Tie this pin to or above 2.4V to enable the device.
Tie this pin to or below 0.4V to turn off the device.
Not Connected
Ground. This pin also functions as heatsink.
Solder to a large pad or the circuit-board ground plane to maximize
thermal dissipation.
Not Connected
Regulator 2 Output. Sources up to 150mA continuous current.
Bypass with a 2.2µF (< 0.5W typ ESR) capacitor to GND.
Regulator 1 Output. Sources up to 150mA continuous current.
Bypass with a 2.2µF (< 0.5W typ ESR) capacitor to GND.
2
EN1
3
EN2
4
NC
5
GND
6
7
8
NC
OUT2
OUT1
4
Rev. G.02
AME, Inc.
AME8750
n
Ordering Information
AME8750 x x x x xxxx x - x
Special Feature2
Special Feature1
Output Voltage
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
Low-Dropout
150mA / 150mA Dual CMOS Regulator
Pin
Configuration
A
(SOT-26)
(TSOT-26)
Operating
Ambient
Temperature
Range
Package
Type
E: SOT-2X
V: DFN
Number
of
Pins
Y: 6
A: 8
Output
Voltage
(Both LDOs)
1825: V
OUT1
=1.8V
V
OUT2
=2.5V
1828: V
OUT1
=1.8V
V
OUT2
=2.8V
1833: V
OUT1
=1.8V
V
OUT2
=3.3V
2828: V
OUT1
=2.85V
V
OUT2
=2.85V
3030: V
OUT1
=3.0V
V
OUT2
=3.0V
3033: V
OUT1
=3.0V
V
OUT2
=3.3V
3325: V
OUT1
=3.3V
V
OUT2
=2.5V
3333: V
OUT1
=3.3V
V
OUT2
=3.3V
Special Feature1
Special Feature 2
(For DFN package only)
1. OUT2 E: -40
O
C to 85
O
C
2. GND
3. BYP
4. EN
5. IN
6. OUT1
Y:
Lead free & Low profile 3: 3x3x0.75(mm)(LxWxH)
(For TSOT-26 only)
Z: Lead free
B
(SOT-26)
(TSOT-26)
1. OUT2
2. GND
3. EN1
4. EN2
5. IN
6. OUT1
1. IN
2. EN1
3. EN2
4. NC
5. GND
6. NC
7. OUT2
8. OUT1
A
(DFN-8)
Rev.G.02
5
嵌入式系统
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