Analog Devices Inc

LTC7803/05/19 Synchronous Step-Down Controllers

Analog Devices' LTC7803, LTC7805, and LTC7819 40 V, low IQ synchronous step-down controllers drive an N-channel power MOSFET stage

Image of Analog Devices' LTC7803/05/19 Synchronous Step-Down ControllersADI's single output LTC7803, dual output LTC7805, and triple output LTC7819 controllers showcase the latest technology in switching regulator step-down DC/DC controllers. All products feature up to 3 MHz operating switching frequency and very low IQ, PassThru™/100% duty cycle capability, and spread spectrum frequency modulation.

  • LTC7803: 40 V Low IQ, 3 MHz synchronous step-down controller with spread spectrum
  • LTC7805: 40 V Low IQ, dual output, 2-phase 100% duty cycle synchronous step-down controller
  • LTC7819: 40 V Low IQ, triple output, 3-phase synchronous step-down controller

Features

  • PassThru/100% duty cycle capability allows output voltages to stay in regulation longer when powered from a discharging battery
  • Very low IQ increases battery runtime during standby mode
  • High-power onboard gate drives drive external MOSFETs with low switching loss for increased efficiency
Applications
  • Automotive: autoconnect and sensing
  • Industrial automation: connected motion and robotics
  • Instrumentation and measurement: ATE
  • Aerospace and defense: radar

LTC7803/05/19 Synchronous Step-Down Controllers

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JMSE#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL181 - Immediate$4.97View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803IUD#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL169 - Immediate$4.89View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JMSE#WPBFLOW IQ SYNCHRONOUS BUCK CONTROLL694 - Immediate$5.53View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803EMSE#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.49View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803HUD#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL466 - Immediate$5.50View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803EUD#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL81 - Immediate$4.49View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803HMSE#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL142 - Immediate$5.50View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JUD#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL56 - Immediate$4.97View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JUD#WPBFLOW IQ SYNCHRONOUS BUCK CONTROLL67 - Immediate$5.53View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803IMSE#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL10 - Immediate$4.89View Details
40V DUAL LOW IQ, 100% DC SYNC BULTC7805RUFDM#TRPBF40V DUAL LOW IQ, 100% DC SYNC BU3321 - Immediate$5.86View Details
LOW IQ TRIPLE OUTPUT BUCK CONTROLTC7819RUJ#TRPBFLOW IQ TRIPLE OUTPUT BUCK CONTRO5365 - Immediate$5.94View Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD FOR LTC7803EMSEDC2834AEVAL BOARD FOR LTC7803EMSE7 - Immediate$100.54View Details
EVAL BOARD FOR LTC7805DC3138AEVAL BOARD FOR LTC78050 - Immediate$146.42View Details
EVAL BOARD FOR LTC7819DC2897AEVAL BOARD FOR LTC78193 - Immediate$165.44View Details
Published: 2022-05-17

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