AME
300mA CMOS LDO with
RESET Function
AME1300
n General Description
n Applications
The AME1300 combines a Low Dropout Regulator and
a Microprocessor Reset Monitor in a space-saving MSOP-
8 package. Total supply current is 50mA (typical), 20 to
60 times lower than in bipolar regulators .
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cellular / GSM / CDMA Phones
l PC Peripherals
The AME1300 has an extremely precise output with a
typical accuracy of ±1.5%. Other key features include
l Battery Powered Widgets
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, RESETB output remains valid and supply
current is reduced to 10mA(typical). The AME1300 is
stable with an output capacitor of only 2.2mF and has a
minimum output current of 300 mA.
n Typical Applications
RESETB
RESETB
VDET
VDET
VDET and VOUT can be
connected together
VOUT
OUT
IN
VIN
1300
An active low RESET is asserted when the detected
voltage (VDET) falls below the reset voltage threshold. The
reset output remains low for 300msec(typical) after VDET
rises above reset threshold. The AME1300 also has a
fast wake up response time (10msec typically) when re-
leased from shutdown.
GND
BYP
NC
SHUTDOWN
CONTROL
EN
470pF
CBypass
(Option)
n Features
l LDO with intergrated Microprocessor Reset
Monitor Functionality
n Pin Configuration
l Guaranteed 300mA Output
l Accurate to within 1.5%
l 50mA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
MSOP-8
Top View
AME1300
1. RESETB
8
7
6
5
2. OUT
3. GND
4. BYP
5. EN
6. NC
l Short Circuit Current Fold-back
l Noise Reduction Bypass Capacitor
AME1300
l Power-Saving Shutdown Mode
l Space-Saving MSOP Package
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
l All AME's Lead Free Products Meet RoHS
Standards.
7. IN
8. VDET
1
2
3
4
Die Attach:
Conductive Epoxy
Rev.C.02
1