Datasheet Linear Technology LT3688

ManufacturerLinear Technology
SeriesLT3688

Dual 800mA Step-Down Switching Regulator with Power-On Reset and Watchdog Timer

Datasheets

Datasheet LT3688
PDF, 430 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 28
Dual 800mA Step-Down Switching Regulator with Power-On Reset and Watchdog Timer
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Prices

Packaging

LT3688EFE#PBFLT3688EFE#TRPBFLT3688EUF#PBFLT3688EUF#TRPBFLT3688HFE#PBFLT3688HFE#TRPBFLT3688IFE#PBFLT3688IFE#TRPBFLT3688IUF#PBFLT3688IUF#TRPBF
N12345678910
PackageTSSOP-24
Package Outline Drawing
TSSOP-24
Package Outline Drawing
4x4 QFN-24
Package Outline Drawing
4x4 QFN-24
Package Outline Drawing
TSSOP-24
Package Outline Drawing
TSSOP-24
Package Outline Drawing
TSSOP-24
Package Outline Drawing
TSSOP-24
Package Outline Drawing
4x4 QFN-24
Package Outline Drawing
4x4 QFN-24
Package Outline Drawing
Package CodeFEFEUFUFFEFEFEFEUFUF
Package Index05-08-177105-08-177105-08-169705-08-169705-08-177105-08-177105-08-177105-08-177105-08-169705-08-1697
Pin Count24242424242424242424

Parametrics

Parameters / ModelsLT3688EFE#PBFLT3688EFE#TRPBFLT3688EUF#PBFLT3688EUF#TRPBFLT3688HFE#PBFLT3688HFE#TRPBFLT3688IFE#PBFLT3688IFE#TRPBFLT3688IUF#PBFLT3688IUF#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC1439ADC1439ADC1439ADC1439ADC1439ADC1439ADC1439ADC1439ADC1439ADC1439A
Design ToolsLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice File
Export Controlnononononononononono
FeaturesBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External SynchronizationBurst Mode, Watchdog Timer, Power On Reset, Resistor Set Frequency, External Synchronization
Frequency, kHz2200220022002200220022002200220022002200
Frequency Adjust Range350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz
Frequency Sync Range350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz350kHz - 2.2MHz
Integrated Inductornononononononononono
Ishutdown, µA0.010.010.010.010.010.010.010.010.010.01
Isupply, mA0.0650.0650.0650.0650.0650.0650.0650.0650.0650.065
Max Phases1111111111
Monolithicyesyesyesyesyesyesyesyesyesyes
Number of Outputs2222222222
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 125-40 to 125-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A0.80.80.80.80.80.80.80.80.80.8
Output Current 2, A0.80.80.80.80.80.80.80.80.80.8
Polyphasenononononononononono
Switch Current, A1.71.71.71.71.71.71.71.71.71.7
Switch Current 2, A1.71.71.71.71.71.71.71.71.71.7
Synchronousnononononononononono
TopologyBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Topology 1BuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Topology 2BuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V36363636363636363636
Vin Min, V3.83.83.83.83.83.83.83.83.83.8
Vout Max, V32.432.432.432.432.432.432.432.432.432.4
Vout Maximum0.9Vin0.9Vin0.9Vin0.9Vin0.9Vin0.9Vin0.9Vin0.9Vin0.9Vin0.9Vin
Vout Min, V0.80.80.80.80.80.80.80.80.80.8
Vout Min 2, V0.80.80.80.80.80.80.80.80.80.8
Vref Accuracy Over Temp, %2222222222

Eco Plan

LT3688EFE#PBFLT3688EFE#TRPBFLT3688EUF#PBFLT3688EUF#TRPBFLT3688HFE#PBFLT3688HFE#TRPBFLT3688IFE#PBFLT3688IFE#TRPBFLT3688IUF#PBFLT3688IUF#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Micropower Buck Regulators | Internal Power Switch Buck
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators
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