TPS40000DGQR

DC DC Switching Controllers Overview

The TPS40000DGQR is a low-input synchronous buck switching controller manufactured by Texas Instruments. It operates within an input voltage range of 2.25V to 5.5V and supports a fixed switching frequency of 300 kHz. The device features a minimum output voltage capability of 700 mV and provides a maximum output current of 8 mA. It is housed in a 10-pin MSOP-PowerPad package suitable for surface mount applications. The component functions as a DC-DC step-down converter with adjustable duty cycle control up to 97%. It is designed for efficient power management in portable and battery-powered systems requiring compact solutions.

DC DC Switching Controllers Feature Summary

• Synchronous buck topology for high efficiency at low input voltages
• Integrated pre-bias start-up capability for safe initialization
• Compact MSOP-PowerPad package design for space-constrained layouts

DC DC Switching Controllers Applications

• Portable electronic devices powered by single-cell lithium batteries
• Low-voltage point-of-load regulation modules
• Battery-operated consumer electronics requiring efficient step-down conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'DGQR' indicates the tape-and-reel packaging variant distinct from the tube-packaged 'DGQ'. Confirm RoHS compliance status through the official datasheet or manufacturer documentation prior to procurement. Ensure the ordering part number matches the required package style and reel quantity specifications exactly.

DC DC Switching Controllers Selection Notes

Select this component when designing circuits with input voltages between 2.25V and 5.5V. It is appropriate for applications requiring a fixed 300 kHz switching frequency and low output currents up to 8 mA. Consider the MSOP-PowerPad thermal performance for your PCB layout. Verify that the 700 mV minimum output voltage meets your load requirements.

DC DC Switching Controllers Part Context

The TPS40000 belongs to the TPS40000 series of low-input synchronous buck controllers from Texas Instruments. This family focuses on providing efficient power conversion for low-voltage applications. The DGQR designation specifically identifies the surface-mount version packaged in reels, distinguishing it from other packaging options within the same functional family.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.