AMS3121
2A Fast Transient Linear Regulator
General Description
Features
The AMS3121 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 only available in a fixed output voltage option.
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VIN range: 1.5 – 7V
Fixed output voltage as low as 0.6V
2A maximum output current
550mV typical dropout voltage at 2A
Low self noise
125µA typical supply current
PSRR >40dB at 10KHz
Stable with Electrolytic, Tantalum or
Ceramic capacitors
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.
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Current Limit protection
Over-Temperature Shutdown
-40 to +125°C temperature range
Available in 3-pin TO-220 and TO-263
surface mount packages
RoHS & WEEE compliant
The AMS3121 is available in both 3-pin TO-220 and
TO-263 packages, and it is rated for -40°C to
+125°C temperature range.
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Applications
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Set-top Box
DVD, Blue-ray DVD writers
LCD TVs and LCD monitors
Battery Powered Equipment
Infotainment
Wireless & RF: applications
High Efficiency “Green” Laptops & notebook
Typical Application
02/11/2010
www.advanced-monolithic.com
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Phone (925) 443-0722
Fax (925) 443-0723