UCC3960D

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The UCC3960D is a monolithic step-down power regulator, which belongs to the category of PMIC - AC/DC Converters, Offline Switchers. It is equipped with an internally-integrated regulated current mode PWM controller, which provides a full set of features and excellent performance. Its applications include simple power converters, off-line switchers, LCD display backlight module, as well as multi-output mobile phone switching regulator, etc.

The UCC3960D has a wide input voltage range, which can work both in AC and DC power supply. This voltage range can be easily set by through external feedback resistors. It also has integrated short-circuit protection and current limit protection, which can ensure the safety of the regulator in the event of over-voltage or over-current.

The UCC3960D adopts PWM (Pulse-Width-Modulation) control in order to provide fast and precise switching control. Its frequency range can be set from 20KHz (or less) to nearly 200KHz with the help of external resistor. This feature is especially useful when designing multi-output regulator.

The UCC3960D has an integrated programmable soft-start to reduce inrush current surge, and a hiccup-mode short circuit protection to protect the regulator in case of any short circuit happening. It also integrates a proprietary adaptive loop frequency to optimize the system transient response.

The UCC3960D has a low operating frequency, which helps to reduce the size and cost of the inductor and capacitor of the external power supply. In addition, it has an output voltage monitoring capability, which is always useful in the event of under-voltage or over-voltage.

The UCC3960D is a highly efficient, cost-effective and reliable step-down power regulator. It is perfect for use in the applications mentioned above, and its features make it an ideal choice for the consumer electronics applications in both AC and DC power supply.

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