RT6158AWSC

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The RT6158AWSC is a single channel buck/boost/inverting, DC/DC converter from Richtek. Implemented in a 10-pin TSOT-23 (Thin shrink-out) package, this device includes a high side MOSFET, low side MOSFET, Protected Switch, and a current-mode PWM controller, providing superior performance and flexibility for system power control designs. This voltage regulator can easily handle up to 5A of output current and a wide input/output voltage range that makes it suitable for a wide range of applications.

This DC/DC Switching Regulator features a voltage range of 3.3V to 18V for the input and 1.8V to 10V for the output. It has a built-in N-Channel Synchronous rectifier and current-mode PWM controller plus a precise integrated voltage reference. The RT6158AWSC is also optimized for low standby current consumption, which helps to extend battery life during power standby. These features make it an ideal choice for handheld medical/fitness device, home monitor, industrial control, green power, and gaming system applications.

The RT6158AWSC provides flexible operation that covers buck, boost, buck-boost, and even inverting modes of operation. This flexibility is advantageous in applications where the input voltage range is not known and the output voltage needs to be adjustable. The regulator also features two different kinds of design modes – Burst Mode® operation and Pulse Frequency Modulation (PFM) Operation. Both Burst Mode and PFM are used to maximize system efficiency and reduce power dissipation. The RT6158AWSC can operate in a very wide frequency range of 100kHz to 1MHz, allowing for very fast transient response and excellent switch node efficiency.

Another important feature of the RT6158AWSC is the use of a low on-resistance MOSFET. This helps to reduce power loss during operation, while also improving the efficiency of the system. It also helps to reduce the size and weight of the power supply design. This device also offers a wide range of protection features such as overtemperature shut down and under-voltage lockouts.

The working principle of the RT6158AWSC is based on a current-mode PWM controller. This is a type of control algorithm in which certain control parameters are updated based on current feedback. The controller essentially works by adjusting the duty cycle of the MOSFET switching to minimize output power dissipation. This allows for a maximum efficiency of up to 95%.

In summary, the RT6158AWSC is an advanced single channel buck/boost/inverting, DC/DC converter with features and performance suitable for a wide range of applications. Its built-in N-Channel Synchronous rectifier, current-mode PWM controller, and precise integrated voltage reference provide excellent performance and flexibility. In addition, the device can operate between 100kHz to 1MHz, allowing for fast transient response and excellent switch node efficiency. Lastly, the low on-resistance MOSFET and wide range of protection features help to reduce power loss and protect the device from over temperature and under voltage. All in all, the RT6158AWSC is an excellent choice for power control designs.

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