VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR WITH INHIBIT FUNCTION / LOW ESR CAP. COMPATIBLE
LD2982 SERIES
VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR WITH INHIBIT FUNCTION, LOW ESR CAP. COMPATIBLE
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LD2982 SERIES
VERY LOW DROP AND LOW NOISE
VOLTAGE REGULATOR WITH INHIBIT FUNCTION, LOW ESR CAP. COMPATIBLE
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s
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VERY LOW DROPOUT
VOLTAGE (120mV AT 50mA AND 7mV AT 1mA LOAD) VERY LOW QUIESCENT CURRENT (375µA TYP. AT 50mA LOAD AND 75µA AT 1mA) OUTPUT CURRENT UP TO 50mA LOGIC CONTROLLED ELECTRONIC SHUTDOWN OUTPUT
VOLTAGE OF 1.5,1.8, 2.5, 2.8, 2.85, 3, 3.1, 3.2, 3.3, 3.5, 3.6, 3.8, 4, 4.7, 5V INTERNAL CURRENT AND THERMAL LIMIT AVAILABLE IN ± 1% TOLLERANCE (AT 25°C, A VERSION) SUPPLY
VOLTAGE REJECTION: 45dB (TYP) ONLY 1µF FOR STABILITY LOW OUTPUT NOISE
VOLTAGE 30µVrms SMALLEST PACKAGE SOT23-5L TEMPERATURE RANGE: -40°C TO 125°C
SOT23-5L
DESCRIPTION The LD2982 is a 50mA fixed output
voltage regulator. The ultra low drop
voltage and the low quiescent current make them particularly suitable for low noise, low power applications, and in battery powered systems. In sleep mode quiescent current is less than 1µA when INHIBIT
pin is pulled low. Shutdown Logic Control Function is available on pin 3 (TTL compatible). This means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. An external capacitor CBYP=10nF connected between bypass pin and GND reduce the noise to 30µVrms. Typical application are in cellular phone, palmtop/ laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera.
SCHEMATIC DIAGRAM
July 2003
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LD2982 SERIES
ABSOLUTE M...