RT6905GQW RT6905 QFN

• The RT6905 is a DC-DC boost (step-up) converter IC designed by Richtek Technology Corporation. It is typically used in circuits where an output voltage higher than the input voltage is required. Here are some examples of circuits and applications that use the RT6905:
  1. Battery-Powered Devices: RT6905 can boost the voltage from batteries to power components requiring higher voltage, such as white LEDs in portable lighting devices or small electronics.
  2. Portable Devices: Devices like MP3 players, handheld gaming devices, and digital cameras often need a stable voltage higher than the battery voltage. RT6905 can provide this stable voltage.
  3. LED Drivers: The RT6905 can be used to drive series-connected LEDs by boosting the input voltage to the desired level and regulating the current.
  4. USB Power Supplies: It can be used to create 5V outputs from lower voltage sources like 1.5V AA batteries or 3.7V lithium-ion cells, useful in USB-compatible devices.
  5. Wearable Electronics: In wearable tech requiring low power but necessitating a higher voltage than the supply battery provides, the RT6905 can be employed.
  6. IoT Devices: Internet of Things (IoT) devices that run on battery power can use the RT6905 to ensure stable operation despite varying battery levels.

  In these applications, the RT6905 typically integrates with other components like capacitors, inductors, and diodes to form the complete boost converter circuit. The specific configuration and component values depend on the required input voltage range, target output voltage, and desired current specifications.