AMS3101
FEATURES
•
0.6V to 6V in 100mV increments Voltages Available
•
Active High On/Off Control
•
Output Current of 150mA
•
Quiescent Current of <1µA when in Shutdown
•
Low Dropout Voltage of 250mV at 150mA
•
Wide Supply Voltage Range 1.5V to 15V
•
Short Circuit and Thermal Protection
•
Power Good function option
•
Ceramic Output Capacitor OK
•
Reference bypass for lower noise
APPLICATIONS
•
Battery Powered Systems
•
Cellular Phones
•
Cordless Telephones
•
Portable (Notebook) Computers
•
Portable Instrumentation
•
Portable Consumer Equipment
•
Personal Communication Equipment
•
Radio Control Systems
•
Low Voltage Systems
•
MP3 Player
GENERAL DESCRIPTION
The AMS3101 is a 150mA low dropout fixed voltage regulator, featuring an internal electronic switch controlled by TTL or
CMOS logic levels. When the Enable pin is pulled to a logic high level, the device is in the ON state. Designed specifically for
battery powered applications where low quiescent current, low dropout and low standby current are required, the AMS3101 is
ideal to use in standby power systems. Like other regulators the AMS3101 series also includes internal current limiting and
thermal shutdown. A high precision 0.6V voltage reference enables the device to provide very low output voltages. A key
feature includes a reference bypass pin to improve its low-noise performance for fixed output versions.
Ideal for space critical applications, the AMS3101 is available in the 5-pin SOT-23 surface mount package and requires only a
10µF capacitor on the output for a minimum amount of external components. The Power Good option is used when the Output
Voltage drop must be detected. If the Output Voltage drops by approximately 15% of its nominal value, the open collector on
PG pin will pull down to Low state.
ORDERING INFORMATION
PACKAGE TYPE
5L SOT-23
AMS3101AM1-XXBP
AMS3101M1-XXBP
AMS3101AM1-XXPG
AMS3101M1-XXPG
AMS3101AM1-ADJ
AMS3101M1-ADJ
OPERATING TEMP.
RANGE
IND
IND
IND
IND
IND
IND
5 Lead SOT-23
(M1)
PIN CONNECTIONS
5 Lead SOT-23
(M1)
5 Lead SOT-23
(M1)
FIXED VOLTAGE
FIXED VOLTAGE
ADJ VOLTAGE
Top View
Top View
Top View
XX =specify the output voltage required
PG=Power Good Open Collector pin
BP=Reference bypass pin for lower noise
1
Advanced Monolithic Systems
http://www.ams-semitech.com
AMS [ Advanced Monolithic Systems Ltd ]
