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Texas Instruments TPSM365Rx Synchronous Buck Converter Power Module

Texas Instruments TPSM365Rx Synchronous Buck Converter Power Module is a 600mA, 65V input synchronous step-down DC/DC power module in a compact 3.5mm x 4.5mm x 2mm, 11-pin QFN package. The device incorporates power MOSFETs with an integrated inductor and boot capacitor. The easy-to-use TPSM365Rx features an ultra-low operating I_Q of 4μA at no load (24V to 3.3V V_OUT). The TPSM365Rx is offered in an adjustable output voltage option that supports a 1V to 13V range. The device is optimized for excellent EMI performance and space-constraint applications.

The TI TPSM365Rx utilizes a peak current mode control scheme with internal compensation to maintain stable operation with minimal output capacitance. The precision EN feature enables precise control of the device during start-up and shutdown and an open-drain
PGOOD output provides an accurate indication of the output voltage status. The TPSM365Rx includes pre-bias start-up, overcurrent, and temperature protections, making the TPSM365Rx an excellent device for powering a wide range of industrial applications.

The small HotRod™ QFN package technology on the TPSM365Rx enhances the thermal performance and low EMI.

Features

Functional safety-capable
- Documentation available to aid functional safety system design
Versatile synchronous buck DC/DC module
- Integrated MOSFETs, inductor, and controller
- 3V to 36V wide input voltage range
- Input transient protection up to 40V
- Junction temperature range –40°C to +125°C
- 4.5mm x 3.5mm x 2mm overmolded package
- Frequency adjustable from 200kHz to 2.2MHz using the RT pin
Ultra-high efficiency across the full load range
- Greater than 88% efficiency at 12V V_IN, 5V V_OUT, 1MHz, I_OUT = 2.5A
- Greater than 87% efficiency at 24V V_IN, 5V V_OUT, 1MHz, I_OUT = 2.5A
- As low as 1.5µA standby I_Q at 13.5V V_IN

Optimized for ultra-low EMI requirements:
- Dual random spread spectrum – DRSS
- Flip-chip on a lead package – FCOL
- Inductor and boot capacitor integration
- CISPR 11, Class B compliant-capable
Output voltage and current options
- The adjustable output voltage is from 1V to 15V

Applications

Factory automation
Test and measurement
Grid infrastructure

Texas Instruments TPSM365Rx Synchronous Buck Converter Power Module

Features

Applications

Typical Schematic

Efficiency vs Output Current

Functional Block Diagram

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