AME, Inc.
AME1300
300mA CMOS LDO with RESET Function
n
General Description
The AME1300 combines a Low Dropout Regulator and
a Microprocessor Reset Monitor in a space-saving 8-Pin
MSOP package. Total supply current is 50µA(typical),20
to 60 times lower than in bipolar regulators .
The AME1300 has an extremely precise output with a
typical accuracy of
±1.5%.
Other key features include
ultra low noise operation, very low dropout voltage and
internal feed-forward compensation for fast response to
step changes in load. The AME1300 incorporates both
over-temperature and over-current protection. When the
shutdown control EN is low, the regulator output voltage
falls to zero,RESET output remains valid and supply cur-
rent is reduced to 10µA(typical). The AME1300 is stable
with an output capacitor of only 2.2µF and has a mini-
mum output current of 300 mA.
An active low RESET is asserted when the detected
voltage ( V
DET
) falls below the reset voltage threshold.
The reset output remains low for 300msec(typical) after
V
DET
rises above reset threshold. The AME1300 also has
a fast wake up response time (10µsec typically) when
released from shutdown.
n
Applications
l
l
l
l
Instrumentation
Portable Electronics
Wireless Devices
Cellular / GSM / CDMA Phones
l
PC Peripherals
l
Battery Powered Widgets
n
Typical Applications
RESET
RESET
V
DET
V
DET
V
DET
and V
OUT
can be
connected together
V
OUT
V
OUT
V
IN
V
IN
GND
1300
NC
Bypass
EN
SHUTDOWN
CONTROL
470pF
n
Features
l
LDO with intergrated Microprocessor Reset
Monitor Functionality
l
Guaranteed 300mA Output
l
Accurate to within 1.5%
l
50µA Quiescent Current
l
Over-Temperature Shutdown
l
Current Limiting
l
Short Circuit Current Fold-back
l
Noise Reduction Bypass Capacitor
l
Power-Saving Shutdown Mode
l
Space-Saving MSOP Package
l
Factory Pre-set Output Voltages
l
Low Temperature Coefficient
CBypass
(Option)
n
Pin Configuration
MSOP-8
Top View
8
7
6
5
1300
Xyww
1.
2.
3.
4.
5.
6.
7.
8.
RESET
V
OUT
GND
Bypass
EN
NC
V
IN
V
DET
1
2
3
4
Note: X represents the regulator
output voltage. yww represents
the date code.
Please contact AME for details
1
AME, Inc.
AME1300
300mA CMOS LDO with RESET Function
n
Absolute Maximum Ratings
Parameter
Input Voltage
Output Current
Output Voltage
ESD Classification
Maximum
7
P
D
/ (V
IN
- V
O
)
GND - 0.3 to V
IN
+ 0.3
B
Unit
V
mA
V
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
n
Recommended Operating Conditions
Parameter
Ambient Temperature Range
Junction Temperature
Rating
- 40 to + 85
- 40 to + 125
Unit
o
C
C
o
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Thermal Information
Parameter
Thermal Resistance (
θ
jc
)
Thermal Resistance (
θ
ja
)
Maximum Junction Temperature
Maximum Lead Temperature (10 Sec)
MSOP-8
MSOP-8
Maximum
39
206
150
300
Unit
o
C/W
C/W
o
o
C
C
o
3
Microcontroller MCU
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