Product News

Synchronous Step-Down Regulator with Ultralow DCR Current Sensing

Linear Technology Corp. recently introduced the LTC7130, which is a constant frequency peak current mode synchronous step-down DC/DC converter with temperature-compensated ultralow DCR current sensing and clock synchronization. According to Linear Technology, the LTC7130 “offers the ability to directly parallel multiple ICs for higher current capability” and “also enhances the signal-to-noise ratio of the current sense signal, enabling the use of a very low DC resistance power inductor to maximize efficiency in high current applications.”Linear LTC7130

The LTC7130’s features and specifications:

  • A wide VIN Range of 4.5 to 20 V
  • High efficiency (up to 95%)
  • Proprietary current mode architecture
  • High current parallel operation
  • Ultralow DCR current sensing with temperature compensation
  • Programmable output current limit
  • High-speed differential remote sense amplifier
  • ±0.5% Output voltage regulation accuracy
  • Output short-circuit protection with soft recovery
  • Programmable and synchronizable fixed frequency from 250 to 770 kHz
  • EXTVCC for reduced power dissipation
  • Fault Indicator for output UV/OV conditions

The LTC7130 is available in a thermally enhanced 6.25 mm × 7.5 mm × 2.22 mm BGA package (RoHS lead-free and leaded SnPb (63/37) finishes). The E-and I-grades are guaranteed in the 40°C to 125°C operating junction temperature range. The 1,000-piece price starts at $7.95 each for the E grade.

Source: Linear Technology


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Synchronous Step-Down Regulator with Ultralow DCR Current Sensing…

by Circuit Cellar Staff time to read: 1 min