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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AAT3258ITS-3.0-R-T1 데이터시트(PDF) 1 Page - Advanced Analog Technology, Inc. |
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AAT3258ITS-3.0-R-T1 데이터시트(HTML) 1 Page - Advanced Analog Technology, Inc. |
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1 / 16 page  AAT3258 300mA LDO Linear Regulator with µP Reset 3258.2006.03.1.6 1 PowerLinear™ General Description The AAT3258 combines a high performance, low noise, 300mA low dropout (LDO) linear regulator with a microprocessor reset monitor. The 300mA output capability of the LDO regulator makes this device ideal for use with microprocessors and DSP cores in portable products. The microprocessor reset monitor section has very low quiescent cur- rent consumption and has an active low reset out- put. The AAT3258 has separate input pins for the reset monitor and LDO regulator so they may be operated from independent sources for increased design flexibility. This device features very low qui- escent current, typically less than 71µA. The LDO regulator has low dropout voltage, typical- ly 400mV at the full output current level, making it ideal for portable applications where extended bat- tery life is critical. The AAT3258 LDO regulator sec- tion has complete over-current/short-circuit and over-temperature protection circuits to guard against extreme operating conditions. The device also has an active output pull down function when disabled. The AAT3258 is available in a Pb-free, space-sav- ing 8-pin TSOPJW package. This device is capa- ble of operation over a -40°C to +85°C temperature range. Features • Integrated LDO Regulator with µP Reset • 300mA Output LDO Regulator • Low Dropout Regulator, 400mV at 300mA • High LDO Output Voltage Accuracy, Typically 1.5% • Very Low Noise and High Power Supply Rejection Ratio (PSRR) LDO • Low Quiescent Current at 71µA • LDO Over-Current/Short-Circuit Protection • LDO Over-Temperature Protection • LDO Power Saving Shutdown Mode • Independent Device Power Inputs • High Accuracy Reset Monitor Threshold: ±1.5% • Active Low Push-Pull Monitor Reset Output • <2.0µA of Shutdown Current • Uses Low Equivalent Series Resistance (ESR) Ceramic Capacitors • -40°C to +85°C Temperature Range • 8-Pin TSOPJW Package Applications • Cellular Phones • Digital Cameras • Handheld Instrumentation • Microprocessor/DSP Core/IO Power • Notebook Computers • PDAs and Handheld Computers • Portable Communication Devices Typical Application AAT3258 1µF 2.2µF 100k 10nF LDO Shutdown µP Reset Manual Reset VIN RESET OUT LDO VOUT VOUT RESET GND SHDN BYP MR VDET VIN |
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