Texas Instruments

TPS60403DBVT

TPS60403DBVT Description

The TPS60403DBVT from Texas Instruments is a high-performance, fixed-output charge pump voltage inverter designed to deliver 60mA of output current with an input voltage range of 1.8V to 5.25V. This DC-DC switching regulator operates at a 250kHz switching frequency, ensuring efficient power conversion while minimizing external component requirements. The device features a ratiometric function, meaning the output voltage tracks the input voltage with a fixed -1x inversion ratio, making it ideal for applications requiring precise voltage inversion. Packaged in a compact SOT23-5 form factor, it is optimized for space-constrained designs and is RoHS3 compliant and REACH unaffected, meeting stringent environmental standards.

TPS60403DBVT Features

• Wide Input Voltage Range: Operates from 1.8V to 5.25V, accommodating various power sources.
• Fixed Inverting Output: Delivers a ratiometric -1x output (e.g., +3.3V in → -3.3V out).
• High Efficiency: Charge pump topology eliminates inductors, reducing board space and cost.
• Low External Component Count: Requires only three small capacitors for operation.
• 60mA Output Current: Suitable for low-to-moderate power applications.
• 250kHz Switching Frequency: Balances efficiency and noise performance.
• SOT23-5 Package: Ideal for portable and space-sensitive designs.
• Robust Compliance: RoHS3 and REACH compliant, with MSL1 (Unlimited) moisture sensitivity.

TPS60403DBVT Applications

• Portable Electronics: Powering negative rails in battery-powered devices like smartphones, wearables, and IoT sensors.
• Signal Conditioning: Generating negative bias for op-amps, ADCs, and DACs in precision analog circuits.
• Display Drivers: Providing negative voltage for LCD/LED backlighting and touchscreen controllers.
• Industrial Systems: Inverting voltages for sensor interfaces, data acquisition systems, and test equipment.
• Consumer Electronics: Enabling dual-rail supplies in audio amplifiers, cameras, and handheld gadgets.

Conclusion of TPS60403DBVT

The TPS60403DBVT stands out as a compact, efficient, and versatile charge pump inverter, offering a simple, inductor-free solution for generating negative voltages. Its wide input range, low external component count, and small footprint make it superior to traditional inductive converters in space-constrained or cost-sensitive designs. Whether for portable devices, analog circuits, or industrial systems, this regulator delivers reliable performance with minimal design overhead, solidifying its position as a go-to choice for engineers seeking a robust voltage inversion solution.