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Buck, Boost Regulator Positive Output Step-Up, Step-Down DC-DC Controller IC

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LTC7818HUJ#PBF General Description

The LTC7818 is a high performance triple output (buck/buck/boost) synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages. Its constant-frequency current mode architecture allows a phase-lockable switching frequency of up to 3MHz. The LTC7818 operates from a wide 4.5V to 40V input supply range. When biased from the output of the boost converter or another auxiliary supply, the LTC7818 can operate from an input supply as low as 1V after start-up.

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Key Features

  • Dual Buck Plus Single Boost Synchronous Controllers
  • Low Operating IQ: 14μA (14V to 3.3V, Channel 1 On)
  • Outputs Remain in Regulation Through Cold Crank Down to 1V Input Supply Voltage
  • Wide Bias Input Voltage Range: 4.5V to 40V
  • Buck and Boost Output Voltages up to 40V
  • Spread Spectrum Operation
  • RSENSE or DCR Current Sensing
Analog Devices, Inc Original Stock


  • Automotive and Transportation
  • Industrial
  • Military/Avionics
Analog Devices, Inc Inventory


model LTC7818HUJ#PBF package 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
packingQty Tube,61 packingOption Tube
packageType 05-08-1728 rohs roHSY
lifeCycle production tempRange -40 to 150C
Manufacturer Analog Devices Inc. Product Category Switching Controllers
RoHS Details Topology Buck, Buck-Boost
Number of Outputs 3 Output Switching Frequency 100 kHz to 3 MHz
Duty Cycle - Max 100 % Input Voltage 4.5 V to 40 V
Output Voltage 800 mV to 40 V Output Current 50 uA
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 125 C
Mounting Style SMD/SMT Package / Case QFN-40
Brand Analog Devices Product Type Switching Controllers
Series LTC7818 Factory Pack Quantity 61
Subcategory PMIC - Power Management ICs

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LTC7818HUJ#PBF Datasheet PDF

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Availability: 4366 pieces

Qty. Unit Price(USD) Ext. Price
1+ $8.315 $8.32
200+ $3.219 $643.80
500+ $3.105 $1,552.50
1000+ $3.049 $3,049.00

The prices below are for reference only.