Texas Instruments TPSM63603 Synchronous Buck Power Module

Texas Instruments TPSM63603 Synchronous Buck Power Module is a highly integrated 36V, 3A DC/DC solution that combines a shielded inductor, power MOSFETs, and passives in an Enhanced HotRod™ QFN package. Each module has VIN and VOUT pins at the package’s corners. These are for optimized input and output capacitor placement. Four larger thermal pads beneath the module enable a simple layout and easy handling in manufacturing.

With an output voltage from 1V to 16V, the Texas Instruments TPSM63603 is designed to implement a low-EMI design in a small footprint. The solution requires as few as four external components and eliminates the selection of the design process’s magnetics and compensation part.

Even though it is designed for small size and simplicity in space-constrained applications, the TPSM63603 module offers many features for robust performance. These include precision enable with hysteresis for adjustable input-voltage UVLO, resistor-programmable switch node slew rate for improved EMI, integrated VCC, and bootstrap and input capacitors for increased reliability. It also includes higher density, constant switching frequency over the full load current range for enhanced load transient performance, and a PGOOD indicator for sequencing, fault protection, and output voltage monitoring.

Features

  • Versatile synchronous buck DC/DC module
    • Integrated MOSFETs, inductor, and controller
    • The device has a wide input voltage range of 3V to 36V
    • An adjustable output voltage from 1V to 16V
    • 4mm × 6mm × 1.8mm overmolded package
    • Junction temperature range
      • TPSM63603 (–40°C to 125°C)
      • TPSM63603E (–55°C to 125°C)
    • Frequency adjustable from 200kHz to 2.2MHz using the RT pin or an external SYNC signal
    • Negative output voltage capability
  • Ultra-high efficiency across the full load range
    • 93% peak efficiency at 12VIN, 5VOUT, 1MHz
    • External bias option for improved efficiency
    • Shutdown quiescent current of 0.6µA (typical)
  • Ultra-low conducted and radiated EMI signatures
    • Low-noise package with dual input paths and integrated capacitors reduces switch ringing
    • Spread-spectrum modulation (S suffix)
    • Resistor-adjustable switch-node slew rate
    • Constant-frequency FPWM mode of operation
    • Meets CISPR 11 and 32 class B emissions
  • Suitable for scalable power supplies
    • Pin compatible with the TPSM63602 (36V, 2A)
  • Inherent protection features for robust design
    • A precision enable input and open-drain PGOOD indicator for sequencing, control, and VIN UVLO
    • Overcurrent and thermal shutdown protection

Applications

  • Test and measurement, aerospace and defense
  • Factory automation and control
  • Buck and inverting buck-boost power supplies

Functional Block Diagram

Block Diagram - Texas Instruments TPSM63603 Synchronous Buck Power Module

Texas Instruments TPSM63603 Synchronous Buck Power Module