Analog Devices, Inc.

LTC7803 40 V Low Iq, 3 MHz Synchronous Step-Down Controller

Analog Devices' LTC7803 offers small solution size, low Iq, and PassThru™ operation for up to 99.9% efficiency

Image of Analog Devices' LTC7803 40 V 3 MHz Buck Controller with Spectrum FrequencyADI's LTC7803 is a low IQ, high performance, 100% duty cycle synchronous step-down switching regulator controller that operates up to a 40 V input supply range. Spread spectrum frequency modulation operation helps reduce EMI peaks. The low quiescent current extends runtime in battery-powered systems when in standby mode and up to 3 MHz reduces the solution size, ideal for a broad range of applications and market segments. Other PassThru parts to consider are the LTC7801 (150 V step-down controller) and LTC7103 (105 V/2.3 A step-down converter).

Features
  • PassThru operation/100% duty cycle capable
  • Low operating IQ: 12 µA
  • Wide input voltage range: 4.5 V to 40 V
  • Output voltage up to 40 V
  • Spread spectrum operation
  • High frequency: 100 kHz to 3 MHz
  • AEC-Q100 qualification in progress
Applications
  • Automotive and transportation
  • Industrial
  • Military/avionics
  • Telecommunications

Resources

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD FOR LTC7803EMSEDC2834AEVAL BOARD FOR LTC7803EMSE9 - Immediate$158.37View Details

LTC7803 Series

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803EMSE#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL131 - Immediate$9.50View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803IMSE#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL16 - Immediate$10.20View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JMSE#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL109 - Immediate$10.31View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803HMSE#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL148 - Immediate$11.20View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JMSE#WPBFLOW IQ SYNCHRONOUS BUCK CONTROLL515 - Immediate$11.27View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803EUD#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL142 - Immediate$9.50View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803EMSE#TRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$3.80View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803EUD#TRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$3.80View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803IUD#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL169 - Immediate$10.20View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803IMSE#TRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.18View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803IUD#TRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.18View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JUD#TRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.25View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JMSE#TRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.25View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JUD#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL96 - Immediate$10.31View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803HUD#TRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.75View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803HUD#PBFLOW IQ SYNCHRONOUS BUCK CONTROLL486 - Immediate$11.20View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803HMSE#TRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.75View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JMSE#WTRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.79View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JUD#WTRPBFLOW IQ SYNCHRONOUS BUCK CONTROLL0 - Immediate$4.79View Details
LOW IQ SYNCHRONOUS BUCK CONTROLLLTC7803JUD#WPBFLOW IQ SYNCHRONOUS BUCK CONTROLL87 - Immediate$11.27View Details
Published: 2020-07-28

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