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[Supply Original] TPS65250RHAT (TI) High Current, Synchronous Triple Buck Converter

TPS65250RHAT: 4.5V to 18V input, 3A/2A/2A output, three-channel synchronous buck converter

1. TPS65250RHAT Product Overview and Supply Background

Shenzhen Mingjiada Electronics Co., Ltd. — long-term supplier of genuine TPS65250RHAT chips (TI three-channel synchronous buck converter). The TPS65250RHAT is packaged in a VQFN-40 package, with an input voltage range of 4.5V to 18V, supporting three independent outputs (3A/2A/2A), and is optimised for high-efficiency power management systems.

2. Core Features of the TPS65250RHAT

High-Efficiency Multi-Output  

Three synchronous buck channels: Buck 1 supports 3A continuous load (maximum 3.5A), Buck 2/3 supports 2A continuous load (maximum 2.5A), with integrated power MOSFETs, significantly reducing the number of external components.  

Flexible output voltage configuration: Each output can be adjusted within the range of 0.8V to (input voltage - 1V) via an external resistor divider, with accuracy up to 1%.

Intelligent control and protection features

Dynamic frequency adjustment: Switching frequency is adjustable between 300kHz and 2.2MHz via an external resistor, with support for external clock synchronisation to reduce noise.

Dying Gasp mode: Integrated storage/release circuitry maintains system operation during sudden input voltage drops, reducing the need for external capacitors.

Multiple Protection Mechanisms: Includes adjustable current limit (RLIMx pin), soft-start control, enable sequencing, and power good (PGOOD) monitoring.

Thermal Management and Package Optimisation

40-pin VQFN-EP package (6mm × 6mm × 0.95mm) with exposed pad on the bottom for enhanced heat dissipation, suitable for high-density PCB designs.

Wide operating temperature range: -40°C to 125°C, meeting industrial and automotive environment requirements.

3. TPS65250RHAT Specifications and Parameters

Mounting style: SMD/SMT    

Package/housing: VQFN-40    

Topology: Buck    

Output voltage: 800 mV to 17 V    

Output current: 3 A

Number of Outputs:    3 Outputs    

Input Voltage - Minimum:    4.5 V    

Input Voltage - Maximum:    18 V    

Quiescent Current:    1.5 mA    

Switching Frequency:    300 kHz to 2.2 MHz    

Minimum Operating Temperature:    -40°C  

Maximum Operating Temperature:    +125°C

4. Typical Application Scenarios

The TPS65250RHAT is specifically designed for multi-voltage rail systems, particularly suitable for:

Network communication equipment: xDSL/xPON modems, cable modems, and wireless routers supporting 5V/9V/12V/15V input systems.

Smart home and gateways: home gateways, power line modems (PLC), optimising standby power consumption with its low-power mode.  

Consumer electronics: set-top boxes (STB) and access point devices, simplifying power architecture with multiple outputs.

【Mingjiada Electronics】long-term supply of TI (TPS65250RHAT) featuring a three-channel synchronous wide input range high-efficiency buck converter. For more information about the TPS65250RHAT product or to inquire about pricing, please contact Mingjiada Electronics:  

QQ: 1668527835  

Phone: 13410018555  

Email: chen13410018555@163.com  

Homepage URL: www.hkmjd.com