Texas Instruments LM2623 DC-DC Boost Converters

Texas Instruments LM2623 Gated-Oscillator-Based DC-DC Boost Converters adapt to a variety of applications. The designer can program the output voltage, the operating frequency (300kHz to 2MHz), and the duty cycle (17% to 90%) to optimize performance. The LM2623 allows an input voltage between 0.9V and 14V and converts it into a regulated output voltage between 1.24V and 14V. The input or input-to-output voltage ratio values can be fixed or variable. The LM2623 uses an effortless on/off regulation mode to produce good efficiency and stable operation over a wide range. The LM2623 skips switching cycles when it reaches the regulation limit (pulse frequency modulation (PFM), enabling the device to regulate. The LM2623-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Good efficiency over a very wide load range
  • Low output voltage ripple
  • Up to 2MHz switching frequency
  • 0.9V to 14V Operating voltage
  • 1.1V Start-up voltage
  • 1.24V to 14V Adjustable output voltage
  • 0.17Ω Internal MOSFET
  • Up to 90% Regulator efficiency
  • 80µA Typical operating current (into VDD pin of supply)
  • Low shutdown current (IQ < 2.5µA)
  • 4mm × 4mm Thermally enhanced WSON package option

Applications

  • Automotive camera
  • Automotive radar
  • Automotive GPS
  • Flash memory programming
  • White-LED drive

Block Diagram

Texas Instruments LM2623 DC-DC Boost Converters
發佈日期: 2017-11-30 | 更新日期: 2023-05-04