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http://www.ti.com/general/docs/suppproductinfo.tsp?distId=26&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftpsm365r15″>View Datasheet

Texas Instruments TPSM365R1x Synchronous Buck Converters

Texas Instruments TPSM365R1x Synchronous Buck Converters are 65V, 100mA, and 150mA step-down DC/DC power modules with ultra-low operating IQ of 4μA at no load (24VIN to 3.3VOUT). These converters combine power MOSFETs, integrated inductor, and boot capacitor in a compact, easy-to-use 3.5mm × 4.5mm × 2mm, 11-pin QFN package. The proprietary small HotRod™ QFN package technology enhances the thermal performance and results in low EMI. The TPSM365R1x buck converters support fixed 3.3V and 5V outputs, in addition to adjustable output voltages spanning from 1V to 16V. The TPSM365R1x synchronous buck DC/DC modules utilize a peak current mode control architecture with internal compensation, ensuring stable operation with minimal output capacitance. Typical applications include appliances, factory automation, and building automation.

Features

  • Versatile synchronous buck DC/DC module:
    • Integrated MOSFETs, inductor, and controller
    • 3V to 65V wide input voltage range
    • Up to 70V input transient
    • –40°C to 125°C junction temperature range
    • 4.5mm × 3.5mm × 2mm overmolded package
    • Frequency adjustable from 200kHz to 2.2MHz using the RT pin
  • Designed for scalable industrial power supplies:
    • Pin compatible family with TPSM365R3 (65V, 300mA), TPSM365R6 (65V, 600mA), TLVM23615 (36V, 1.5 A), and TLVM23625 (36V, 2.5A)
  • Optimized for ultra-low EMI requirements:
    • Pseudo-random spread spectrum reduces peak emissions
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • Frequency synchronization with MODE/SYNC pin
    • CISPR11 class B capable
  • Inherent protection features for robust design:
    • Precision-enabled input and open-drain PGOOD indicator for control, sequencing, and VIN UVLO
    • Overcurrent and thermal shutdown protections

Applications

  • Factory automation
  • Building automation
  • Appliances
  • Scalable industrial power supplies

Simplified Schematic

Schematic - Texas Instruments TPSM365R1x Synchronous Buck Converters

Block Diagram

Block Diagram - Texas Instruments TPSM365R1x Synchronous Buck Converters

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Texas Instruments TPSM365R1x Synchronous Buck Converters