UCC29002D/1G4

Power management integrated circuits (PMICs) are becoming increasingly important components in a range of electronic devices and system designs. They are used to manage and regulate current, voltage, and power in an electronic device. A specialized PMIC, the UCC29002D/1G4, is used to reduce system power consumption, minimize board space, and increase efficiency. This article will discuss the applications of a UCC29002D/1G4 PMIC and the working principle behind it.

Application Field

The UCC29002D/1G4 PMIC is a specialized PMIC designed specifically for use in notebook and tablet PCs, smart phones, and similar battery-powered applications. It was developed by Texas Instruments and provides a unique set of features to help reduce system power consumption. Features include voltage regulation with foldback current limit and diode emulation, power-on reset (POR) capability and fast-transient response, and an ultra-low-standby operation.

The UCC29002D/1G4 has been designed to provide a solution for notebook PCs that require low-power operation. The device provides increased system efficiency by eliminating the need for a dedicated standby supply and reducing the number of discrete components needed for voltage regulation. The UCC29002D/1G4 provides additional flexibility to the system designer by offering a single-chip solution that can operate from a wide range of input voltages, including a low-level standby voltage of 0.4V.

The UCC29002D/1G4 provides an average of 44% system power savings compared to traditional PMICs. In addition, the UCC29002D/1G4 helps to reduce board space to maximize system efficiency and reduce bill-of-materials. Other applications include GPS receivers, gaming devices, and wearable technologies.

Working Principle

The UCC29002D/1G4 is a Pulse Width Modulation (PWM) controller that uses the PWM technique to provide power-level control. In this type of system, the voltage is regulated by modulating the switching duty cycle of the power converter. This duty cycle is determined by the controller comparing the input voltage with an internal reference voltage, known as the feedback voltage. The PWM duty cycle is then adjusted to maintain the voltage at the feedback voltage level.

The UCC29002D/1G4 is designed to operate with a low-level standby voltage of 0.4V. The device employs a foldback current limit which reduces converter current as the input voltage decreases below 0.8V, thereby providing ultra-low-power operation. The device also features a low-voltage lockout (UVLO) that shutdowns the power converter at very low input voltages.

In addition to its application in notebook PCs, the UCC29002D/1G4 has the potential to reduce power consumption in a number of applications including GPS receivers, wearables and gaming devices. Its efficient design and low-level voltage operation make it an ideal solution for these types of applications.