Datasheet Linear Technology LTC3440

ManufacturerLinear Technology
SeriesLTC3440

Micropower Synchronous Buck-Boost DC/DC Converter

Datasheets

LTC3440 - Micropower Synchronous Buck-Boost DC/DC Converter
PDF, 334 Kb, Revision: D, File uploaded: Sep 21, 2017
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Prices

Packaging

LTC3440EDD#PBFLTC3440EDD#TRPBFLTC3440EMS#PBFLTC3440EMS#TRPBF
N1234
Package3x3 DFN-10
Package Outline Drawing
3x3 DFN-10
Package Outline Drawing
MS-10
Package Outline Drawing
MS-10
Package Outline Drawing
Package CodeDDDDMSMS
Package Index05-08-169905-08-169905-08-166105-08-1661
Pin Count10101010

Parametrics

Parameters / ModelsLTC3440EDD#PBFLTC3440EDD#TRPBFLTC3440EMS#PBFLTC3440EMS#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC425B,DC797ADC425B,DC797ADC425B,DC797ADC425B,DC797A
Design ToolsLTspice FileLTspice FileLTspice FileLTspice File
Export Controlnononono
FeaturesOutput Disconnect, Burst Mode, Resistor Set Frequency, External SynchronizationOutput Disconnect, Burst Mode, Resistor Set Frequency, External SynchronizationOutput Disconnect, Burst Mode, Resistor Set Frequency, External SynchronizationOutput Disconnect, Burst Mode, Resistor Set Frequency, External Synchronization
Frequency, kHz2000200020002000
Frequency Adjust Range300kHz - 2MHz300kHz - 2MHz300kHz - 2MHz300kHz - 2MHz
Frequency Sync Range300kHz - 2MHz300kHz - 2MHz300kHz - 2MHz300kHz - 2MHz
Integrated Inductornononono
Ishutdown, µA0.10.10.10.1
Isupply, mA0.0250.0250.0250.025
Monolithicyesyesyesyes
Number of Outputs1111
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85
Output Current, A0.60.60.60.6
Polyphasenononono
Synchronousyesyesyesyes
TopologyBuck-BoostBuck-BoostBuck-BoostBuck-Boost
Vin Max, V5.55.55.55.5
Vin Min, V2.52.52.52.5
Vout Max, V5.55.55.55.5
Vout Min, V2.52.52.52.5

Eco Plan

LTC3440EDD#PBFLTC3440EDD#TRPBFLTC3440EMS#PBFLTC3440EMS#TRPBF
RoHSCompliantCompliantCompliantCompliant

Design Notes

  • Single Inductor, Tiny Buck-Boost Converter Provides 95% Efficiency in Lithium-Ion to 3.3V Applications &mdash DN275
    PDF, 77 Kb, File published: Jan 1, 2002
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  • Supply 2A Pulses for GSM Transmission from 500mA USB or PCMCIA Ports &mdash DN307
    PDF, 91 Kb, File published: Apr 1, 2003
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Articles

  • It Just Got Easier to Convert Lithium-Ion Battery Voltage to 3.3V with this Efficient Single Inductor Synchronous Buck-Boost Reg &mdash LT Journal
    PDF, 171 Kb, File published: Mar 1, 2002
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  • Versatile Buck-Boost Converter Offers High Efficiency in a Wide Variety of Applications &mdash LT Journal
    PDF, 1.3 Mb, File published: Jun 10, 2005
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Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > Buck-Boost Regulators > Internal Power Switch Buck-Boost
EMS supplier