描述:
詳細描述,The RF6650 is a pulse width modulated (PWM), voltage-mode controlled DC-DC converter unit designed to supply power to a W-CDMA power amplifier. The output voltage is continuously programmable through the VSET analog input pin according to the transfer function V,OUT,?=?V,SET,?x?2.5. The converter has been optimized for high efficiency at light current load conditions, fast transient response times to meet W-CDMA 25μs slot-to-slot transition specifications, and low noise by maintaining a constant switching frequency, while supplying up to 650mA in PWM controlled or bypass modes. Bypass mode is automatically enabled when V,BAT,?3.3V and V,SET,?>?1.55V. The converter is enabled when V,EN,?>?1.3V. The RF6650 is a 1.58mm?x?1.57mm, 8-bump, WLCSP device.,特點,High Efficiency >?95%,Transient Response 25ms,650mA Load Current Capability,Programmable Output Voltage,Bypass FET,Constant Switching Frequency,VBAT Range?=?2.7V to 5.1?V,Over-Temperature Shutdown,Over-Current Shutdown