Микросхемы и комплектующие LTC3246IMSE#PBF

DC-DC CHARGE PUMP , BUCK-BOOST, MSOP-16

The LTC3246IMSE#PBF from Linear Technology is a wide VIN range buck-boost charge pump with watchdog timer in 16 lead MSOP package. This switched capacitor buck-boost DC to DC converter with integrated watchdog timer. The device produces a regulated output (3.3V, 5V or adjustable) from 2.7V to 38V input. Switched capacitor fractional conversion is used to maintain regulation over a wide range of input voltage. Internal circuitry automatically selects the conversion ratio to optimize efficiency as input voltage and load conditions vary. No inductors are required. The LTC3246's reset time and watchdog timeout may be set without external components or adjusted using external capacitors. A windowed watchdog function is used for high reliability applications. The reset input can be used for additional supply monitoring or be configured as a pushbutton reset. Low operating current and low external parts count make the LTC3246 ideally suited for low power, space constrained applications.

• 2.7V to 38V operating range (42V absolute maximum)
• IQ = 20µA operating, 1.5µA in shutdown
• Multi-mode buck-boost charge pump (2:1, 1:1, 1:2) with automatic mode switching
• 12V to 5V efficiency = 81%, Iout up to 500mA
• Engineered for diagnostic coverage in ISO 26262 systems
• Ultralow EMI emissions
• Overtemperature, overvoltage and short circuit protection
• POR
• watchdog controller with external timing control
• 200ms internal reset timeout period

• Operating temperature range from -40°C to 125°C

Области применения

Управление Питанием, Авто, Промышленное