TPS65250RHA

Voltage Regulators - DC DC Switching Regulators Overview

The TPS65250RHA is a high-current, synchronous step-down three-buck converter IC from Texas Instruments. It operates with an input voltage range of 4.5 V to 18 V and provides three adjustable output channels. The primary output supports up to 3 A, while the secondary outputs support up to 2 A each. Output voltages are adjustable from 0.8 V to 17 V. The device features a switching frequency range of 300 kHz to 2.2 MHz and includes integrated synchronous rectification. It is housed in a 40-pin VQFN package with an exposed pad for thermal management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates three independent synchronous buck converters for multi-rail power distribution
• Supports frequency synchronization to reduce system-wide electromagnetic interference
• Includes programmable soft-start and adjustable current limit protection mechanisms
• Provides power good indicators and adjustable undervoltage lockout for system monitoring

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial automation controllers requiring multiple voltage rails
• Telecommunications infrastructure equipment
• Embedded computing systems with mixed voltage requirements

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix RHA corresponds to the 40-pin VQFN package configuration. Confirm that the required output current ratings align with the 3A/2A/2A distribution limits. Ensure thermal design accounts for the exposed pad requirement in the VQFN-40 footprint. Check for RoHS compliance status if environmental regulations apply to the target assembly process.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single IC solution is needed to replace multiple discrete regulators. It is suitable for designs requiring wide input voltage ranges up to 18 V. Consider the thermal performance of the VQFN package under maximum load conditions. Verify that the external component selection supports the desired switching frequency and output ripple specifications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TPS65250 family of triple synchronous buck converters. It is designed for applications needing efficient power conversion from higher voltage buses down to lower logic levels. The family shares common control architectures but varies in pin counts and current capabilities across different package options.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes may include other triple buck converters from Texas Instruments such as the TPS65266 series, though input voltage ranges and pin configurations differ. Cross-reference pinouts and thermal characteristics carefully when replacing.