Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
Advanced AMS500
Monolithic LOW COST 500mA REGULATOR
Systems
FEATURES APPLICATIONS
• Fixed and Adjustable Versions Available • Cellular Telephones
• Output Current up to 500mA • Portable Consumer Equipment
• Very Low Quiescent Current • Portable (Notebook) Computers
• Reverse Battery Protection • Battery Powered Systems
• Input-output Differential less than 0.6V • Portable Instrumentation
• Short Circuit Protection • Radio Control Systems
• Internal Thermal Overload Protection • CD/DVD drives
• Overvoltage Protection • Automotive
• ON/OFF Pin
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 TEMP.
VOLTAGE 3L TO-92 SOT-89 SOT-23-5 RANGE
FIXED AMS500N-X AMS500L-X AMS500M1-X IND
ADJ. AMS500M1 IND
X = 2.0V, 2.5V, 3.0V, 3.3V, 3.5V, 4.0V, 5.0V.
PIN CONNECTIONS
TO-92
Plastic Package (N)
SOT-89
(L)
5 Lead SOT-23
(M1)
OUTPUT INPUT
GND 1 2 3
OUTPUTGNDINPUT
INPUT OUTPUT
ON/OFF ADJ / N/C
GROUND
1
2
5
3 4
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