RICHTEK RT8079GQW 直流-直流开关降压逐步递减稳压器, 可调, 2.95V-6V输入, 827mV-3.6V输出, 3A输出, WQFN-16
The is a 2.95V to 6V input, 3A output, 2MHz, synchronous step-down converter in 16 pin WQFN package. The RT8079 provides accurate regulation for a variety of loads with ±3% accuracy. For reducing inductor size, it provides up to 2MHz switching frequency. The efficiency is maximized through the integrated 45mohm MOSFETs and 550µA typical supply current. Under voltage lockout voltage of the RT8079 is 2.7V and it also provides external setting by a resistor network on the enable pin. It provides protections such as inductor current limit under voltage lockout and thermal shutdown. The RT8079"s current mode architecture allows the transient response to be optimized over a wider input voltage and load range. Cycle by cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. It is used in low-voltage, high-density power systems, distributed power systems and point-of load conversions.
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- Adjustable PWM frequency is 300KHz to 2MHz
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- 95% is efficiency
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- Adjustable soft start
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- Power good indicator
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- Enable control
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- Over temperature threshold is 145°C
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- Output voltage is 0.827V to 3.6V
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- Quiescent current is 0.55mA