BD9533EKN-E2

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BD9533EKN-E2 is a special purpose voltage regulator tha belongs to the Power Management IC (PMIC) product family. This device has been designed to offer over-voltage protection, thermal shutdown and to deliver current up to 2A in battery-powered application. The main features of this voltage regulator are its small package size, low external components count, average drain current down to 1mA and fast current limit protection, making the BD9533EKN-E2 attractive for battery-powered applications such as digital cameras, power tools, measuring instruments and portable gadgets.

The BD9533EKN-E2 voltage regulator consists of two identical buck controllers integrated in a single package. Each buck controller contains an input voltage detector for over-voltage protection, a programming terminal for setting the output current limit and a thermal protection switch for activating a shutdown function. This keeps the device from over-heating and helps to prevent damage due to excessive current. The BD9533EKN-E2 can be configured to operate in buck, boost or buck-boost mode, depending on the output voltage required.

The BD9533EKN-E2 voltage regulator works on the principle of Pulse Width Modulation (PWM). The output voltage is set by a feedback, or control, signal supplied by an external Voltage Reference. This feedback signal, in combination with the voltage divider network and resistor, will adjust the PWM signal generated by the built-in oscillator in order to keep the output voltage at the desired level. The PWM period and duty cycle are set using a control signal from the voltage reference.

The BD9533EKN-E2 voltage regulator is specifically designed to provide the necessary level of protection for a wide range of applications. It is capable of delivering up to 2A of current and offering over-voltage protection, thermal shutdown and allowing for switching between buck, boost and buck-boost mode. This makes the BD9533EKN-E2 ideal for battery-powered applications such as digital cameras, power tools, measuring instruments and portable gadgets.

The BD9533EKN-E2 voltage regulator is based on a Pulse Width Modulation (PWM) principle. The output voltage is controlled by a feedback, or control, signal supplied by an external voltage reference, in combination with a voltage divider network and resistor to adjust the PWM signal generated by the built-in oscillator and keep the output voltage at the desired level. In addition, it offers thermal protection to keep it from overheating, protecting it from damage due to excessive current.

Overall, the BD9533EKN-E2 voltage regulator is an ideal power management solution for battery-powered applications. It operates with a low external component count, helping to keep the device small and offering efficient voltage regulation. Additionally, it is designed to offer over-voltage protection, thermal shutdown and allows switching between buck, boost and buck-boost mode. This makes it an attractive option for digital cameras, power tools, measuring instruments, and various portable gadgets.

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