LV5068V-TLM-H Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LV5068V-TLM-H is an autonomous on/off voltage regulator either as a step up (boost) or step down (buck) converter. It is intended for use in power management integrated circuits (PMICs), such as mobile phones. It is a DC-DC switching controller with low voltage operation and high linear current control. It offers flexibility for easy integration into various system solutions.

Application Fields

LV5068V-TLM-H can be used in various applications requiring step up or step down conversion. One of its most common application fields is mobile phone as a power controller, especially for its high linear current control. It also can be used as a voltage regulator in LED lighting, battery power source, automotive power source, etc. In addition, it is suitable for applications requiring high power efficiency, such as server and data centers.

Working Principle

The LV5068V-TLM-H uses a Pulse Frequency Modulation (PFM) or Pulse Width Modulation (PWM) control algorithm to achieve an accurate output voltage. In PWM mode, the output voltage is maintained by switching the regulator on and off at a fixed frequency while varying the duty cycle of the output current. In PFM mode, the regulator will regulate the output voltage by varying the switching frequency. When the output voltage is increased, the duty cycle increases, and when the output voltage is decreased, the duty cycle decreases.

The LV5068V-TLM-H has an integrated power switch for both its boost and buck converters. It uses a low-voltage startup to reduce system current and minimize stress on the power switch. The power switch operates at a frequency of up to 1MHz and a duty cycle of up to 100%, to maximize efficiency in various output power levels. The Control Input (CI) pin enables direct connection to a Microcontroller Unit (MCU) or other control logic for synchronization with the application.

The LV5068V-TLM-H has an integrated overvoltage protection (OVP) circuit which can protect the load against overvoltage conditions. The circuit can be set to monitor the output voltage, and when a predetermined OVP threshold has been exceeded, it will shut off the power switch and remove power from the load. This will prevent damage due to overvoltage conditions. The LV5068V-TLM-H also has several safety features, including overcurrent protection, thermal shutdown, and an adjustable soft-start feature.

The LV5068V-TLM-H is an ideal power management IC for applications requiring high efficiency, high linear current control, and low voltage operation. The device offers flexibility for easy integration into various system solutions, and its wide range of features makes it suitable for a variety of applications.

The specific data is subject to PDF, and the above content is for reference