Datasheet Linear Technology LTC3246MPMSE#PBF — Ficha de datos

LTC3246
Wide VIN Range
Buck-Boost Charge Pump
with Watchdog Timer
DESCRIPTION FEATURES n n n n 2.7V – 38V Operating Range (42V Abs Max)
IQ = 20ВµA Operating, 1.5ВµA in Shutdown
Multimode Buck-Boost Charge Pump (2:1, 1:1, 1:2)
with Automatic Mode Switching
12V to 5V Efficiency = 81%
IOUT Up to 500mA
VOUT: Fixed 3.3V, 5V or Adjustable (2.5V to 5V)
Ultralow EMI Emissions
Engineered for Diagnostic Coverage in ISO 26262
Systems
Overtemperature, Overvoltage and Short-Circuit
Protection
Operating Junction Temperature: 150В°C Max
POR/Watchdog Controller w/External Timing Control
Thermally Enhanced 16-Lead MSOP Package The LTCВ®3246 is a switched capacitor buck-boost DC/DC
converter with integrated watchdog timer. The device
produces a regulated output (3.3V, 5V or adjustable) from
a 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 …