AME, Inc.
AME1300
300mA CMOS LDO with RESET Function
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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.
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Applications
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Instrumentation
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Portable Electronics
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Wireless Devices
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Cellular / GSM / CDMA Phones
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PC Peripherals
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Battery Powered Widgets
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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
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Features
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LDO with intergrated Microprocessor Reset
Monitor Functionality
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Guaranteed 300mA Output
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Accurate to within 1.5%
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50µA Quiescent Current
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Over-Temperature Shutdown
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Current Limiting
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Short Circuit Current Fold-back
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Noise Reduction Bypass Capacitor
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Power-Saving Shutdown Mode
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Space-Saving MSOP Package
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Factory Pre-set Output Voltages
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Low Temperature Coefficient
CBypass
(Option)
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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
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AME [ ANALOG MICROELECTRONICS ]
