TPS61040DRVTG4

Overview

The TPS61040DRVTG4 is a high-frequency boost converter from Texas Instruments, designed for small to medium LCD bias supply and white LED backlight applications. It operates with an input voltage range of 1.8 V to 6 V and provides an adjustable output voltage from 1.8 V to 28 V. The device supports a maximum output current of 400 mA with a fixed switching frequency of 1 MHz. It features a low quiescent current of 28 uA and functions within a temperature range of -40°C to +85°C. The component is housed in a WSON-6 package.

Feature Summary

• Integrated high-efficiency synchronous boost topology optimized for compact power solutions
• Fixed 1 MHz switching frequency enables the use of small external passive components
• Low quiescent current operation extends battery life in portable devices
• Adjustable output voltage allows flexibility for various load requirements

Applications

• LCD bias supply for small to medium displays
• White LED backlight supplies
• General-purpose DC-DC conversion in portable electronics
• Battery-powered devices requiring step-up voltage regulation

Procurement Notes

Verify the specific suffix G4 indicates lead-free status and environmental compliance according to Texas Instruments documentation. Confirm the WSON-6 package dimensions match your PCB footprint requirements. Ensure the input voltage source remains within the 1.8 V to 6 V operational range to prevent malfunction. Check that the thermal pad connection is properly implemented for heat dissipation during high-current operation.

Selection Notes

Select this component when a compact solution is needed for boosting low input voltages to higher levels for display or lighting loads. The 400 mA output current capability suits medium-power applications. Consider the 1 MHz frequency trade-off between component size and efficiency. Compare against non-synchronous alternatives if cost is a primary driver, though efficiency may vary. Ensure the application does not exceed the 28 V maximum output limit.

Part Context

The TPS61040 belongs to the TPS6104x family of high-frequency boost converters. This series is specifically engineered for portable consumer electronics where space and power efficiency are critical. The DRVTG4 variant represents the surface-mount version in a WSON-6 package, distinguishing it from other pinouts like SOT-23 or SON packages found in related models such as the TPS61040DRV.

Replacement Considerations

• TPS61040DRVR

FAQ

What is the maximum output voltage of the TPS61040DRVTG4?

The maximum adjustable output voltage is 28 V.

Does the TPS61040DRVTG4 support synchronous rectification?

Yes, it utilizes a synchronous boost topology for improved efficiency.