Summit Microelectronics SMB20X Buck Regulators

Summit Microelectronics introduced the SMB20X family of programmable power manager (PPM) integrated circuits. The SMB20X family includes the SMB207, 207A, 208, 208A, 209, 209A single- and dual-output integrated DC-DC buck regulators. The SMB20X family combines Summit’s digital programmability with dense integration, ultra-compact size, and cost-effective bill-of-materials (BoM) necessary for mass-market consumer products. The SMB20X family is available in a tiny thermally-enhanced, RoHS-compliant, lead-free 3mm X 3mm, 20-pad QFN. Available now in production quantities, the SMB20X family is priced between $1.00 each for the SMB207 to $1.40 each for the SMB208A/209A respectively in quantities of 10,000 units.

Summit Microelectronics SMB20X family of programmable power manager (PPM) integrated circuits

Summit SMB20X Buck Regulators Features

  • Supports power management for green and EnergyStar applications
  • Single/Dual Step-Down DC-DC Outputs
    • Integrated power MOSFET switches
    • 1A/2A/4A output current with built in current limit
    • Input voltage range: +4.5V to +16V
    • +0.8V to +5.0V output voltage (+/-2.5% accuracy)
    • Automatic PFM mode for light load efficiency
    • 180° phase interleave (SMB207A/208/A)
    • Integrated frequency compensation
    • Input undervoltage lockout (UVLO)
  • Integrated Power Control and Programmability
    • I2C Digital or Pin Control
    • Coarse and Fine Output Voltage Setting
      • 16-level “Coarse” nominal setpoint

        • +0.8V to +1.8V @ 100mV/step
        • +2.5/2.3/3.0/3.3/5.0V
      • 8-level “Fine” Margining (20XA only)
        • +1.14% to +7.95% (vs. coarse setting)
    • PWM frequency: 500kHz or 1MHz
    • Output up/down sequence (SMB207/A/208/A)
    • Digital output softstart/stop
    • Output UV monitoring with PGOOD/RESET output
    • Independent output enable pins (SMB207/A/208/A)

More information: Summit Microelectronics