Texas Instruments

UCD3138RGCR

The UCD3138RGCR is a high-performance, monolithic, step-up/step-down charge pump IC from Texas Instruments. It is designed to provide a regulated output voltage from a single input voltage source, making it ideal for a wide range of applications.

Description:

The UCD3138RGCR is a highly integrated charge pump that can operate in both step-up (boost) and step-down (buck) modes. It features a low-dropout regulator (LDO) and a high-efficiency switching converter, which allows it to provide a stable output voltage even when the input voltage varies. The device also includes built-in protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

Features:

1. Wide input voltage range: The UCD3138RGCR can operate with input voltages from 2.5V to 5.5V, making it suitable for a variety of power sources.
2. High efficiency: The device achieves high efficiency of up to 93% in step-up mode and up to 90% in step-down mode.
3. Low quiescent current: The UCD3138RGCR has a low quiescent current of 2.5µA, which helps to minimize power consumption in battery-powered applications.
4. Adjustable output voltage: The output voltage can be easily adjusted using an external resistor network, allowing for customization to specific application requirements.
5. Built-in protection features: The device includes overcurrent protection, overvoltage protection, and thermal shutdown to ensure safe and reliable operation.
6. Small package size: The UCD3138RGCR is available in a compact 10-pin WSON package, making it suitable for space-constrained applications.

Applications:

1. Portable devices: The UCD3138RGCR is ideal for use in portable devices such as smartphones, tablets, and wearables, where efficient power management and a small form factor are crucial.
2. Power supplies: The device can be used to create efficient and compact power supplies for a variety of applications, including IoT devices, sensors, and industrial equipment.
3. LED lighting: The UCD3138RGCR can be used to drive high-brightness LEDs in applications such as automotive lighting, signage, and general illumination.
4. Medical devices: The device's low-noise operation and built-in protection features make it suitable for use in medical devices that require precise voltage regulation and reliable operation.
5. Battery charging: The UCD3138RGCR can be used to charge batteries in applications such as portable electronics, wireless chargers, and energy harvesting systems.

In summary, the UCD3138RGCR from Texas Instruments is a versatile and efficient charge pump IC that offers a wide input voltage range, high efficiency, and adjustable output voltage. Its small package size and built-in protection features make it suitable for a wide range of applications, including portable devices, power supplies, LED lighting, medical devices, and battery charging systems.