AMS500 Datasheet, PDF (1/7 Pages) Advanced Monolithic Systems – LOW COST 500mA REGULATOR

Advanced
Monolithic
Systems
AMS500
LOW COST 500mA REGULATOR
FEATURES
• Fixed and Adjustable Versions Available
• Output Current up to 500mA
• Very Low Quiescent Current
• Reverse Battery Protection
• Input-output Differential less than 0.6V
• Short Circuit Protection
• Internal Thermal Overload Protection
• Overvoltage Protection
• ON/OFF Pin
APPLICATIONS
• Cellular Telephones
• Portable Consumer Equipment
• Portable (Notebook) Computers
• Battery Powered Systems
• Portable Instrumentation
• Radio Control Systems
• CD/DVD drives
• Automotive
GENERAL DESCRIPTION
The AMS500 series consists of positive fixed and adjustable voltage regulators ideally suited for use in battery-powered systems.
These devices feature very low quiescent current of 0.8mA or less when supplying 50mA loads. This unique characteristic and
the low input-output differential required for proper regulation (0.2V for output currents of 100mA) make the AMS500 ideal to
use for standby power systems.
Internal circuitry of AMS500 is protected from input fault conditions caused by input voltages that exceed maximum rated input
voltage. During line transients, when the input voltage to the regulator can momentarily exceed the specified maximum
operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The AMS500 series
also includes internal current limiting, thermal shutdown.
The AMS500 is offered in 3 lead TO-92, SOT-89 and 5 leads SOT-23 packages.
ORDERING INFORMATION
OUTPUT
PACKAGE TYPE
VOLTAGE
3L TO-92
SOT-89
FIXED AMS500N-X
AMS500L-X
ADJ.
X = 2.0V, 2.5V, 3.0V, 3.3V, 3.5V, 4.0V, 5.0V.
SOT-23-5
AMS500M1-X
AMS500M1
PIN CONNECTIONS
TO-92
Plastic Package (N)
SOT-89
(L)
OUTPUT
INPUT
GND
Bottom View
123
INPUT GND OUTPUT
Top View
TEMP.
RANGE
IND
IND
5 Lead SOT-23
(M1)
INPUT 1
GROUND 2
ON/OFF 3
5 OUTPUT
4 ADJ / N/C
Top View
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]