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LM2760M5 датащи(PDF) 1 Page - National Semiconductor (TI) |
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LM2760M5 датащи(HTML) 1 Page - National Semiconductor (TI) |
1 / 10 page LM2760 3.3V Regulated Switched Capacitor Voltage Converter General Description The LM2760 is a switched-capacitor DC/DC converter that generates a regulated 3.3V output capable of driving a load up to 20mA (V IN ≥ 2.5V). The wide input voltage range (2.0V-4.4V) allows this device to be powered from several types of batteries, including single cell lithium-ion, two-cell alkaline, nickel-metal-hydride, and nickel-cadmium. The LM2760 solution does not require an inductor and needs only three small external ceramic capacitors. The miniscule quiescent current of the part, typically 10µA unloaded, makes the LM2760 ideal for low-current standby power rails. The LM2760 is a switched-capacitor circuit that is controlled by a gated oscillator. Both a low-input-voltage boost mode and high-input-voltage pass mode are implemented to opti- mize efficiency over the full input voltage range. Additional features of the LM2760 include thermal protection and current limiting. The LM2760 is available in a small, five-pin SOT-23 package. Features n 3.3V ± 4% Regulated Output n Ultralow Power: 10µA Typical Supply Current n Boost and Pass Modes for Improved Efficiency n Input Voltage Range: 2.0V to 4.4V n Output Current up to 20mA (V IN ≥ 2.5V) n Output Current up to 10mA (V IN ≥ 2.0V) n Inductorless solution n Small external parts count: 3 ceramic capacitors n 750kHz Switching Frequency n SOT23-5 Package n Short-Circuit and Thermal Protection Applications n Battery-Operated Devices n Cellular Phone n Standby Power Supply n Memory Keep-alive Power Typical Application Circuit 20044301 December 2002 © 2002 National Semiconductor Corporation DS200443 www.national.com |
Аналогичный номер детали - LM2760M5 |
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Аналогичное описание - LM2760M5 |
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