LTC3300HUK-1

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

Introduction

The LTC3300HUK-1 is a portable power management integrated circuit (PMIC) from Linear Technology. It is an easy-to-use solution for battery management applications in portable devices such as cellular phones, personal digital assistants (PDAs), portable media players and digital cameras. The LTC3300HUK-1 is a hybrid solution combining a buck and boost converter, further integrated with linear regulator and battery charger. The device offers highest levels of efficiency while meeting stringent power management requirements of portable devices.

Application fields of LTC3300HUK-1

Portable devices often have stringent requirements for power management that are difficult to meet with traditional power supply solutions. For instance, many of these devices operate with only low input voltage or input voltage range which is much lower than the battery voltage or varying operating temperature. The LTC3300HUK-1 is designed to overcome these challenges by providing highly efficient power conversion and battery management solutions.

The LTC3300HUK-1 is used in various applications in portable devices requiring battery management. It can be used to implement buck-boost architecture to power devices from a wide variety of sources such as a single-cell Li-ion battery, two-cell NiMH batteries, and AC adaptors. It can also be used to extend run-time of battery-powered portable devices by providing constant output at varying input voltages. Additionally, the LTC3300HUK-1 is also used for Li-ion/Li-Polymer/NiMH battery charging applications. The PMIC offers an innovative buck/boost dual purpose input power path due to very low quiescent current of its buck circuit.

Working principle of LTC3300HUK-1

The LTC3300HUK-1 is a low voltage power management IC that is specifically designed for battery-powered portable devices. The device integrates a 1.5A buck-boost DC/DC converter with a linear regulator, a Li-Ion/Li-Polymer/NiMH battery charger and various protection and diagnostic functions into a single IC. This small IC is designed to overcome input voltage irregularities and enable cost-effective, energy-efficient battery charging. The PMIC offers superior output accuracy and efficiency along with low quiescent current.

The main working principle of LTC3300HUK-1 involves buck-boost DC/DC conversion and linear regulation. The power management IC enables direct couplinof the battery. The buck-boost DC/DC converterregulates the output voltage and current, while the linear regulator provides low dropout voltage. The integrated Li-Ion/Li-Polymer/NiMH battery charger monitors the battery voltage and temperature, and charges the battery with a constant current (CC) and constant voltage (CV) charge profile. The buck-boost DC/DC converter, linear regulator, and the battery charger are all combined into one small and power efficient package.

Protection features of LTC3300HUK-1 include under-voltage lockout, reverse current protection and thermal shutdown to protect the battery from over-discharge and over-temperature conditions. In addition, the device offers diagnostics feedback through the I2C interface which enables monitoring of various parameters including battery voltage, output current and temperature.

Conclusion

The LTC3300HUK-1 PMIC from Linear Technology is a highly efficient power management IC designed for battery-powered portable devices. It is an integrated solution combining a buck-boost converter, linear regulator and battery charger. The device offers superior output accuracy and efficiency along with low quiescent current, and various protection and diagnostic features. The device is suitable for battery management applications in cellular phones, personal digital assistants, media players and digital cameras.

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