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LM2853MH-0.8 Folha de dados(PDF) 1 Page - National Semiconductor (TI) |
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LM2853MH-0.8 Folha de dados(HTML) 1 Page - National Semiconductor (TI) |
1 / 12 page LM2853 3A 550 kHz Synchronous SIMPLE SWITCHER® Buck Regulator General Description The LM2853 synchronous SIMPLE SWITCHER® buck regu- lator is a 550 kHz step-down switching voltage regulator capable of driving up to a 3A load with excellent line and load regulation. The LM2853 accepts an input voltage between 3.0V and 5.5V and delivers a customizable output voltage that is factory programmable from 0.8V to 3.3V in 100mV increments. Internal type-three compensation enables a low component count solution and greatly simplifies external component selection. The exposed-pad TSSOP-14 package enhances the thermal performance of the LM2853. Features n Input voltage range of 3.0V to 5.5V n Factory EEPROM set output voltages from 0.8V to 3.3V in 100 mV increments n Maximum load current of 3A n Voltage Mode Control n Internal type-three compensation n Switching frequency of 550 kHz n Low standby current of 12 µA n Internal 40 m Ω MOSFET switches n Standard voltage options 0.8/1.0/1.2/1.5/1.8/2.5/3.0/3.3 volts n Exposed pad TSSOP-14 package Applications n Low voltage point of load regulation n Local solution for FPGA/DSP/ASIC core power n Broadband networking and communications infrastructure Typical Application Circuit 20201502 Efficiency vs Load Current (V OUT = 3.3V) 20201501 SIMPLE SWITCHER® is a Registered Trademark of National Semiconductor Corporation. October 2006 © 2006 National Semiconductor Corporation DS202015 www.national.com |
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