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AMS3120 fiches techniques PDF

AMS - 2A Fast Transient Linear Regulator

Numéro de référence AMS3120
Description 2A Fast Transient Linear Regulator
Fabricant AMS 
Logo AMS 





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AMS3120 fiche technique
General Description
The AMS3120 is a high performance linear regulator
with very low dropout voltage and excellent transient
response. It is designed to operate with wide input
voltage range of 1.5 – 7Volts making it ideal for two
step conversion while maintaining high efficiency for
many power sensitive applications. The device is
capable of supplying 2A of output current with a
typical dropout voltage of 550mV at 2A. The product
is available in either fixed or adjustable output
voltage.
The linear regulator has been optimized for noise
sensitive applications. The device includes an
Enable pin for electrical on/off of the regulator.
Forcing the Enable pin to logic low shuts down the
LDO and reduces the supply current to less than
1µA.
The product includes complete short-circuit and
thermal protection. The combination of these two
internal protection circuits gives the device a
comprehensive safety system to safe guard against
extreme adverse operating conditions.
The AMS3120 is available in a thermally enhanced
SOIC-8 EDP package, and it is rated for -40°C to
+125°C temperature range.
Typical Application
AMS3120
2A Fast Transient Linear Regulator
Features
VIN range: 1.5 – 7V
Fixed and Adjustable output voltage as low
as 0.6V
2A maximum output current
550mV typical dropout voltage at 2A
Low self noise
Optional Power Good (PG) output
Enable (EN) pin for LDO on/off
125µA typical supply current
PSRR >40dB at 10KHz
Stable with Electrolytic, Tantalum or
Ceramic capacitors
Current Limit protection
Over-Temperature Shutdown
-40 to +125°C temperature range
Thermally enhanced SOIC-8 exposed
paddle package
RoHS & WEEE compliant
Applications
Set-top Box
DVD, Blue-ray DVD writers
LCD TVs and LCD monitors
Infotainment
Wireless & RF: applications
Laptops & notebook
VIN= 3.3V
CIN=10μF
VIN VOUT*
AMS3120
EN PG*
ADJ*
GND
VOUT=1.8V
COUT = 22μF
* Optional Power Good, Fixed and Adjustable VOUT are available
02/11/2010
www.advanced-monolithic.com
1
Phone (925) 443-0722
Fax (925) 443-0723

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