Advanced
Monolithic
Systems
FEATURES
•
Fast Transient Response
•
Dropout Voltage Defined by FET Used
•
Very Tight Load Regulation
•
High Side Sense Current Limit
AMS2115
FAST TRANSIENT RESPONSE LOW DROPOUT REGULATOR
APPLICATIONS
•
Microprocessor Supplies
•
Video Card Supplies
•
Low Voltage Logic Supplies
•
GTL Termination
GENERAL DESCRIPTION
The AMS2115 is a single IC controller that drives an external N channel MOSFET as a source follower to produce a fast
The
transient response, low dropout voltage regulator. The fast transient load performance is obtained by eliminating expensive
tantalum or bulk electrolytic output capacitors in the most demanding modern microprocessor applications. Precision-trimmed
adjustable and fixed output voltage versions accommodate any required microprocessor power supply voltage. By selecting the
N-channel MOSFET RDS(ON) a very low dropout voltage can be achieved. A protection feature includes a high side current
limit amplifier that activates a circuit to limit the FET gate drive. A shutdown pin turns off the gate drive and some internal
circuits to reduce quiescent current. AMS2115 is offered in 8L SOIC and 8L PDIP package.
ORDERING INFORMATION:
PACKAGE TYPE
8L PDIP
AMS2115P
AMS2115P-1.5
AMS2115P-1.8
AMS2115P-2.5
AMS2115P-3.3
AMS2115P-5.0
8L SOIC
AMS2115S
AMS2115S-1.5
AMS2115S-1.8
AMS2115S-2.5
AMS2115S-3.3
AMS2115S-5.0
OPERATING JUNCTION
TEMPERATURE RANGE
-0 to 125° C
-0 to 125° C
-0 to 125° C
-0 to 125° C
-0 to 125° C
-0 to 125° C
S/D
VIN
GND
FB
1
2
3
4
8L SOIC
8L PDIP
8
7
6
5
IPOS
INEG
GATE
COMP
Top View
TYPICAL APPLICATION:
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Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
