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8-DFN
Integrated Circuits (ICs)

LTC3873EDDB#TRMPBF

Active
Analog Devices Inc./Maxim Integrated

NO RSENSE™CONSTANT FREQUENCY CURRENT MODE BOOST/FLYBACK/SEPIC DC/DC CONTROLLER

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Search across all available documentation for this part.

DocumentsLTC3873: No RSENSE Constant Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller Data Sheet (Rev.C)R421 Reliability Data+2
8-DFN
Integrated Circuits (ICs)

LTC3873EDDB#TRMPBF

Active
Analog Devices Inc./Maxim Integrated

NO RSENSE™CONSTANT FREQUENCY CURRENT MODE BOOST/FLYBACK/SEPIC DC/DC CONTROLLER

Deep-Dive with AI

DocumentsLTC3873: No RSENSE Constant Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller Data Sheet (Rev.C)R421 Reliability Data+2

Technical Specifications

Parameters and characteristics for this part

SpecificationLTC3873EDDB#TRMPBF
Clock SyncFalse
Control FeaturesSoft Start, Enable, Current Limit
Duty Cycle (Max) [Max]78 %
FunctionStep-Up/Step-Down, Step-Up
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]85 C
Operating Temperature [Min]-40 ¯C
Output ConfigurationIsolation Capable, Positive
Output Phases1
Output TypeTransistor Driver
Package / Case8-WFDFN Exposed Pad
Supplier Device Package8-DFN (3x2)
Synchronous RectifierFalse
TopologyBoost, SEPIC, Flyback
Voltage - Supply (Vcc/Vdd) [Max]60 V
Voltage - Supply (Vcc/Vdd) [Min]8.4 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$Updated
DigikeyCut Tape (CT) 1$ 5.411m+
10$ 3.62
25$ 3.16
100$ 2.64
250$ 2.39
Digi-Reel® 1$ 5.411m+
10$ 3.62
25$ 3.16
100$ 2.64
250$ 2.39
N/A 914$ 5.271m+
Tape & Reel (TR) 500$ 1.911m+
NewarkEach (Supplied on Cut Tape) 1$ 5.411m+
10$ 3.62
25$ 3.16
50$ 2.90
100$ 2.64
250$ 2.39

Description

General part information

LTC3873 Series

The LTC3873 is a constant frequency, current mode, boost, flyback or SEPIC DC/DC controller that drives an N-channel power MOSFET in high input and output voltage converter applications. Soft-start can be programmed using an external capacitor.The LTC3873 provides ±1.5% output voltage accuracy and consumes only 300μA quiescent current during normal operation and only 55μA during micropower start-up. Using a 9.3V internal shunt regulator, the LTC3873 can be powered from a high input voltage through a resistor or it can be powered directly from a low impedance DC voltage of 9V or less.The LTC3873 is available in 8-lead ThinSOT and 2mm x 3mm DFN packages.LTC3873LTC3873-5VCCUV+8.4V4.1VVCCUV–4V2.9VAPPLICATIONSTelecom Power Supplies42V and 12V Automotive Power SuppliesPortable Electronic Equipment