LV5066V-TLM-H

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LV5066V-TLM-H is an advanced synchronous step-down DC-DC controller operating over an input voltage range of 2.6V to 16V. It is commonly used in PMIC (Power Management IC) Voltage Regulators and DC DC Switching Controllers applications. The part features advanced digital control loop that helps increase power efficiency and reduce noise. Additionally, it offers flexible control features such as current mode control, soft-start, programmable reset, power good, enable/disable, and over temperature protection which enable designers to create advanced and efficient novel power solutions.

The controller operates in a Synchronous Buck topology and incorporates all necessary circuitry for seamless integration into any application. The LV5066V-TLM-H part is capable of up to 1.5 A output current and 95% peak efficiency. On top of that, it provides programmable over current protection and supports up to two output voltage rails. The tiny 2mm x 2mm package is ideal for space-constrained end-products.

When it comes to its working principle, the LV5066V-TLM-H uses an external low-cost N-channel MOSFET to switch the power. In synchronization with the fixed frequency clock, the fast response voltage mode control loop regulates the output voltage. When the output voltage drops, a fast digital comparator closes the linear regulator loop (analog feedback) and the loop starts regulating the output voltage.

The digital programming circuitry of the LV5066V-TLM-H enables simple adjustment of different parameters. Setting up the part is easy, thanks to the integrated DAC and resistor divider that come with the on-chip settings. The soft-start time, skip frequency, and switching frequency are all adjustable with a single external resistor, setting the oscillator frequency from 120kHz to 1MHz. Meanwhile, the peak current limit can be adjusted with a single external resistor. The output voltage can be adjusted with an external resistor and a capacitor via the DAC.

The LV5066V-TLM-H is a robust DC-DC controller suitable for a wide range of applications including consumer, industrial and communications equipment. The flexible pin assignment provides easy working connection with other components in the application. The device also features over temperature protection, power good, enable/disable functions and soft start. All these features make the LV5066V-TLM-H an ideal choice for space-constrained DC-DC solution applications.

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