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Envelope Tracking Power Chip

Envelope Tracking Power Chip

The ET power system consists of two parts: ET and APT. Users can choose the appropriate working mode according to the application needs. The ET mode achieves real-time modulation of RF PA load power supply by tracking and amplifying the input envelope signal, reducing PA invalid loss and thus improving system efficiency. APT mode is a buck converter system controlled by peak current control, using PWM modulation. The characteristic of this product is to meet the needs of customers for miniaturization and high efficiency, providing high-quality power management solutions for consumer devices such as wireless high-speed data communication systems, personal communication systems, and drone communication systems.
ET芯片

Model Signal support bandwidth output power load resistance control mode VDD voltage efficiency Packaging form Typical applications
RM6100 60MHz 4W 3.6Ω MIPI 3.2V-5V 76%(Vin = LTE 40M @ 2.33W) 75%(Vin = LTE 100M @ 2.33W) BGA-36 UAV/smartphone/handheld wireless device/battery-powered RF device
RM8302B 40MHz 4W 3.6Ω MIPI 3.2V-5V ≥80%(Vin = LTE 40M @ 1W,PAPR4.5dB,2.4GHz) BGA-36 unmanned aerial vehicle (UAV)/smartphone/handheld wireless device/battery-powered RF device