Advanced
Monolithic
Systems
FEATURES
•
Fixed and Adjustable Versions Available
•
Output Current up to 500mA
•
Very Low Quiescent Current
•
Input-output Differential less than 0.5V
•
Short Circuit Protection
•
Internal Thermal Overload Protection
•
ENABLE Pin available in selected packages
AMS5105
500mA CMOS LOW DROPOUT VOLTAGE REGULATOR
RoHS compliant
APPLICATIONS
•
Cellular Telephones
•
Portable Consumer Equipment
•
Portable (Notebook) Computers
•
Battery Powered Systems
•
Portable Instrumentation
•
Radio Control Systems
•
CD/DVD drives
GENERAL DESCRIPTION
The AMS5105 series consists of positive fixed and adjustable voltage regulators ideally suited for use in battery-powered
systems. These devices feature very low quiescent current (500uA or less) when supplying loads up to 500mA, and a standby
current less than 500nA when disabled using the ENABLE pin (available in selected packages). These unique characteristics
and the low input-output differential required for proper regulation (0.5V for output currents of 500mA) make the AMS5105
ideal for use in standby power systems. Internal current limiting and thermal shutdown features provide protection for all
AMS5105 series devices regardless of package type. The AMS5105 is offered as fixed voltage regulators in the 5 lead SOT-23,
SOT-89, SOT-223, and 8 lead SOIC packages, and as adjustable voltage regulators in the 5 lead SOT-23 and 8 lead SOIC
packages. All devices in the 5 lead SOT-23 and 8 lead SOIC packages are provided with ENABLE pin.
ORDERING INFORMATION
OUTPUT
5L SOT-23
VOLTAGE
FIXED
AMS5105M1-X
ADJUSTABLE AMS5105M1
X = 1.5V, 1.8V, 2.5V, 2.8V, 3.3V.
PACKAGE TYPE
SOT-89
AMS5105L-X
SOT-223
AMS5105-X
SO-8
AMS5105S-X
AMS5105S
TEMP.
RANGE
-25C to 125C
-25C to 125C
PIN CONNECTIONS
5 Lead SOT-23
(M1)
SOT-89
(L)
SOT-223
8 Lead SOIC
(S)
V
IN
1
5
V
OUT
FB
N/C
V
OUT
1
2
GND
3
1
2
GND
3
1
8
V
IN
GROUND 2
ENABLE 3
4
GROUND 2
7 GROUND
6 GROUND
5 ENABLE
N/C
V
OUT
V
IN
V
OUT
V
IN
GROUND 3
FB
4
N/C
Top View
Top View
Top View
Top View
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
