LTC3130EUDC-1#PBF

The LTC3130EUDC-1#PBF is a high efficiency, low noise buck-boost DC to DC converter in 20 pin QFN package. For high efficiency operation at light loads, burst mode operation can be selected by reducing quiescent current to 1.6µA. Converter start-up is achieved from sources as low as 7.5µW. The LTC3130-1 employs an ultralow noise, 1.2MHz PWM architecture that minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. A built-in loop compensation and soft start reduces external parts count and simplifies design. It also features an accurate RUN comparator threshold to allow predictable regulator turn-on and maximum power point control (MPPC) capability that ensures maximum power extraction from non ideal sources such as photovoltaic panels. The converter has power good output, an external VCC input and thermal shutdown. It is typically used in long life battery operated instruments, low power sensors and solar panel post regulator/chargers.

• Regulates VOUT above, below or equal to VIN
• Wide VIN range from 2.4V to 25V and less than 1V to 25V (using EXTVCC input)
• Internal voltage divider to provide four selectable fixed output voltages
• 1.8V, 3.3V, 5V and 12V fixed VOUT voltages
• 1.2µA no-load input current in burst mode operation (VIN = 12V, VOUT = 5V)
• 600mA output current in buck mode
• Up to 95% efficiency and 500nA VIN quiescent current in shutdown mode
• Pin selectable burst mode operation, accurate RUN pin threshold
• Operating temperature range from -40°C to 125°C