IXD1209F302MR-G

The IXD1209F302MR-G is an integrated linear regulator from IXYS Integrated Circuits Division. It is suitable for various voltage applications in various fields. This application note reviews its features, operating principles, and application fields.

The IXD1209F302MR-G is a linear voltage regulator that provides Dual Outputs to the devices supply voltage. It provides two step down converter outputs, with the primary output providing 1.8V and the secondary output providing 1.0V with a 1.8A current rating. The device also provides power factor (PF) correction of >0.9, over current protection, over temperature protection, over voltage protection, and thermal overload protection. In addition, this device has an integrated PWM control, reset circuit, and an external feedback set point.

This device is designed for various applications, such as industrial, automotive, telecom and enterprise networking. It is suitable for powering a wide range of products including CPUs, FPGAs, ASICs, DSPs, SRAMs and other digital ICs. This device is also suitable for powering remote transmission ports, memory modules, and analog or digital power amplifiers.

The operating principle of the IXD1209F302MR-G consists of three main circuit blocks. The power path block contains the input regulator and the output buck regulator. The PWM control block contains the pulse-width modulation (PWM) circuit. The feedback and reset status block consists of the adjustable external feedback set point and the reset circuit.

The power stage of the IXD1209F302MR-G is basic Buck converter that provides dual outputs. The input regulator is used to regulate the input voltage from the power source, which can range from 4.5V to 14V. The output buck regulator produces two outputs, with the primary output providing 1.8V, and the secondary output providing 1.0V.

The PWM control block is used to regulate both the primary and secondary outputs. It is driven by an external PWM signal, which is generated by the feedback set point circuit and the reset circuit. This PWM signal is used to control the on-off state of the power switch, thereby controlling the output current. The feedback set point circuit allows the user to set the desired output voltage, and the reset circuit prevents the device from damaging itself due to an excessive output voltage.

The IXD1209F302MR-G is a highly efficient and cost-effective solution for a wide range of applications. It provides dual output voltage in a compact form factor and offers protection features, such as over-current, over-voltage, over-temperature and thermal overload. Additionally, the device is compatible with low-frequency PWM signals, making it ideal for a wide range of applications.