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LD2981CU33TR 데이터시트(PDF) 1 Page - STMicroelectronics |
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LD2981CU33TR 데이터시트(HTML) 1 Page - STMicroelectronics |
1 / 17 page 1/17 September 2003 s STABLE WITH LOW ESR CERAMIC CAPACITORS s ULTRA LOW DROPOUT VOLTAGE (0.17V TYP. AT 100mA LOAD, 7mV TYP. AT 1mA LOAD) s VERY LOW QUIESCENT CURRENT (80µA TYP. AT NO LOAD IN ON MODE; MAX 1µA IN OFF MODE) s GUARANTEED OUTPUT CURRENT UP TO 100mA s LOGIC-CONTROLLED ELECTRONIC SHUTDOWN s OUTPUT VOLTAGE OF 1.5; 1.8; 2.5; 2.85; 3.0; 3.2; 3.3; 3.6; 3.8; 4.0; 4.7; 4.85; 5.0V s INTERNAL CURRENT AND THERMAL LIMIT s ± 0.75% TOLERANCE OUTPUT VOLTAGE AVAILABLE (A VERSION) s OUTPUT LOW NOISE VOLTAGE 160µVRMS s TEMPERATURE RANGE: -40 TO 125°C s SMALLEST PACKAGE SOT23-5L AND SOT-89 s FAST DYNAMIC RESPONSE TO LINE AND LOAD CHANGES DESCRIPTION The LD2981 series are 100mA fixed-output voltage regulator. The low drop-voltage and the ultra low quiescent current make them suitable for low noise, low power applications and in battery powered systems. The quiescent current in sleep mode is less than 1µA when INHIBIT pin is pulled low. Shutdown Logic Control function is available on pin n.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. The LD2981 is designed to work with low ESR ceramic capacitor. Typical applications are in cellular phone, palmtop/laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera. LD2981 SERIES ULTRA LOW DROP VOLTAGE REGULATORS WITH INHIBIT LOW ESR OUTPUT CAPACITORS COMPATIBLE SCHEMATIC DIAGRAM SOT23-5L SOT-89 |
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