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LTC3822EDD#TRPBF - 10-WDFN

LTC3822EDD#TRPBF

Active
Analog Devices

NO RSENSE™, LOW INPUT VOLTAGE, SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER

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Search across all available documentation for this part.

DocumentsR421 Reliability DataTape and Reel Packaging+1
LTC3822EDD#TRPBF - 10-WDFN

LTC3822EDD#TRPBF

Active
Analog Devices

NO RSENSE™, LOW INPUT VOLTAGE, SYNCHRONOUS STEP-DOWN DC/DC CONTROLLER

Deep-Dive with AI

DocumentsR421 Reliability DataTape and Reel Packaging+1

Technical Specifications

Parameters and characteristics for this part

SpecificationLTC3822EDD#TRPBF
Clock SyncFalse
Control FeaturesFrequency Control, Enable
Duty Cycle (Max) [Max]99 %
Frequency - Switching750 kHz, 550 kHz, 300 kHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output Phases1
Output TypeTransistor Driver
Package / Case10-WFDFN Exposed Pad
Supplier Device Package10-DFN (3x3)
Synchronous RectifierTrue
TopologyBuck
Voltage - Supply (Vcc/Vdd) [Max]4.5 V
Voltage - Supply (Vcc/Vdd) [Min]2.75 V

Pricing

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

DistributorPackageQuantity$
DigikeyTape & Reel (TR) 2500$ 2.39

Description

General part information

LTC3822-1 Series

The LTC3822-1 is a synchronous step-down switching regulator controller that drives external N-channel power MOSFETs using few external components. The constant frequency current mode architecture with MOSFET VDSsensing eliminates the need for sense resistors and improves efficiency.Burst Mode operation provides high efficiency at light loads. The 99% maximum duty cycle provides low dropout operation, extending operating time in battery-powered systems.The operating frequency can be programmed up to 750kHz, allowing the use of small surface mount inductors and capacitors. For noise sensitive applications, the LTC3822-1 can be synchronized to an external clock from 250kHz to 750kHz.The LTC3822-1 is available in the tiny footprint thermally enhanced 12-pin DFN package or 16-pin narrow SSOP package.FeaturesLTC3822Internal soft-start, 34µA in sleep modeLTC3822-1External soft start, selectable pulse skip/Burst Mode operation, power good (SSOP-16 package only), 105µA in sleep modeApplicationsSingle Cell Li-Ion Powered Systems3.3VINSystems