MAS9164 Ver la hoja de datos (PDF) - Micro Analog Systems Oy
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MAS9164 Datasheet PDF : 10 Pages
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DA9164.006
14 March 2003
MAS9164
50 mA LDO Voltage Regulator IC
• Only 10 µA Ground Pin Current at
1 mA Load Current
• Good Transient Performance
• Low Dropout Voltage: 150 mV
• Low Noise
• Enable/Disable Control
• Stable with Low-ESR Output
Capacitors
DESCRIPTION
MAS9164 is an LDO voltage regulator with low
ground pin current of 10 µA, which combined with
the good overall performance, makes MAS9164
highly suitable for providing power to continuously
working low power circuits. The usage of MAS9164
is beneficial especially in the applications where
standby periods are long and in portable devices
where long battery life is essential.
In addition to the low ground pin current, MAS9164
excels in dropout voltage (150 mV typical at 50 mA).
Although MAS9164 does not use an external
bypass capacitor, the noise level (100 Hz…
100 kHz) is only 100 µVrms with 1 µF output
capacitor.
The Equivalent Series Resistance (ESR) range of
output capacitors that can be used with MAS9164 is
very wide. This ESR range from a few mΩ up to a
couple of Ohms combined with no minimum output
current requirement makes the usage of MAS9164
easier and low in cost.
Enable/disable pin allows MAS9164 to be turned off
or on. In order to save power the device enters the
sleep mode when the regulator is disabled.
An internal thermal protection circuit prevents the
device from overheating. Also the maximum output
current is internally limited.
FEATURES
• Extremely Low Current Consumption
• Low Minimum Operating Supply Voltage
• Output Accuracy < ± 3.3%
• Internal Thermal Shutdown
• Short Circuit Protection
• Thin SOT (TSOT 5) Package
• Output Voltage Option: 1.8 V,
see Ordering Information p. 10
APPLICATIONS
• Continuously Working Low Power Circuits
• Digital Circuits
• Real-Time Clocks (RTC)
• SRAMs
• CMOS Backup Power
• Cellular Phones
• Portable Systems
• Smoke Detectors
PIN CONFIGURATION
Top View
VOUT
5
N/C
4
64AX
123
VIN GND CTRL
For Marking Information see
Ordering Information p. 10
1 (10)
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