TLV62568PDDCT Datasheet/PDFTexas Instruments’ TLV62568PDDCT (PDDCT) is a synchronous step-down (buck) DC/DC converter optimized for small size and high efficiency. This converter\'s easy-to-use design supports a wide input voltage range of 3.5 V to 36 V and an adjustable output voltage range of 0.8 V to 30 V. The device provides high efficiency, excellent transients, low noise, and fast transient response.
The TLV62568PDDCT is available in TSOT23-6, SOT23-6, and SOT-23-7 packages, making it ideal for high-density, battery-powered applications such as automotive, industrial, communications, and wireless infrastructure. The device can be used with either a single inductor or dual-inductor configuration, allowing for increased design flexibility.
Application Fields
The TLV62568PDDCT is primarily used in automotive, industrial and communications applications. It provides superior power conversion efficiency in a small package. The most common applications include DC/DC converters, point-of-load converters, wide input voltage range applications, and portable electronics.
Working Principle
The TLV62568PDDCT operates in fixed frequency, current mode control topology. It provides two operating modes: Discontinuous Conduction Mode (DCM), and Continuous Conduction Mode (CCM).
In DCM mode, the device shuts down the high side of the switch and switches the low side at a fixed frequency, with a duty cycle that is adjusted to maintain the output voltage at the desired setpoint.
In CCM mode, the device switches both the high and low side at a constant frequency. The duty cycle is adjusted to maintain the output voltage at the desired setpoint.
The device has built-in features such as programmable soft-start and delay, pre-bias start-up, and cycle-by-cycle current limit. It also features precision enable and feedback pins, auto-compensation, selectable line voltage sensing, and adjustable frequency up to 1 MHz.
Conclusion
TLV62568PDDCT is a high performance, cost-effective synchronous step-down DC/DC converter from Texas Instruments. It offers superior power conversion efficiency and is ideal for applications such as automotive, industrial and communications. It has two operating modes and various built-in features that make the solution simpler, more flexible and easier to use.