LT8331Low IQBoost/SEPIC/Flyback/Inverting Converter with 0.5A, 140V Switch | Evaluation Boards | 7 | Active | The LT8331 is a current mode DC/DC converter with a 140V, 0.5A switch operating from a 4.5V to 100V input. With a unique single feedback pin architecture, it is capable of boost, SEPIC, flyback or inverting configurations. Burst Mode operation consumes as low as 6μA quiescent current to maintain high efficiency at very low output currents, while keeping typical output ripple below 20mV.The internally-compensated current mode architecture results in stable operation over a wide range of input and output voltages and programmable switching frequencies between 100kHz to 500kHz. A SYNC/MODE pin allows synchronization to an external clock. It can also be used to select between burst or pulse-skipping modes of operation. For increased efficiency, a BIAS pin can accept a second input to supply the INTVCCregulator. Additional features include frequency foldback and programmable soft-start for controlling inductor current during start-up.The LT8331 is available in a thermally-enhanced MSOP package with four pins removed for high voltage spacings.ApplicationsIndustrial and AutomotiveTelecomMedical Diagnostic EquipmentPortable Electronics |
| Development Boards, Kits, Programmers | 3 | Active | |
| Integrated Circuits (ICs) | 2 | Active | |
LT8335Low IQBoost/SEPIC/ Inverting Converter with 2A, 28V Switch | Power Management (PMIC) | 7 | Obsolete | The LT8335 is a current mode DC/DC converter capable of generating either positive or negative output voltages using a single feedback pin. It can be configured as a boost, SEPIC or inverting converter consuming as low as 6μA of quiescent current. Low ripple Burst Mode operation maintains high efficiency down to very low output currents while keeping the output ripple below 15mV in a typical application. The internally compensated current mode architecture results in stable operation over a wide range of input and output voltages. Integrated soft-start and frequency foldback functions are included to control inductor current during start-up. The 2MHz operation combined with the small 8-lead DFN package, enables low cost, area efficient solutions.ApplicationsIndustrial and AutomotiveTelecomMedical Diagnostic EquipmentPortable Electronics |
| Evaluation Boards | 10 | Active | |
LT8337LT8337-128V, 5A Low IQSynchronous Step-Up Silent Switcher with PassThru | Integrated Circuits (ICs) | 4 | Active | The LT8337/LT8337-1 is a low IQ, synchronous step-up DC/DC converter. It features Silent Switcher architecture and optional spread spectrum frequency modulation (SSFM) to minimize EMI emissions while delivering high efficiencies at high switching frequencies.The wide input/output voltage range, low VINpin quiescent current in Burst Mode operation, and 100% duty-cycle capability for the synchronous MOSFET in PassThru operation (VIN> VOUT) makes the LT8337/LT8337-1 ideally suited for battery-powered systems and general purpose step-up applications.The LT8337/LT8337-1 integrates 28V, 5A power switches, operating at a fixed switching frequency programmable between 300kHz and 3MHz and synchronizable to an external clock. The LT8337/LT8337-1 features output soft-start and output overvoltage lockout.The LT8337-1 allows external compensation via the VCpin for fast transient response. The LT8337 offers an output power good flag via the PG pin.ApplicationsBattery-Powered SystemsGeneral Purpose Step-Up |
LT833840V, 1.2A Micropower Synchronous Boost Converter with PassThru | Power Management (PMIC) | 4 | Active | The LT8338 is a synchronous monolithic step-up regulator that provides high efficiency for input and output up to 40V. It consumes only 6μA quiescent current at Burst Mode operation to maintain high efficiency at very low output current, while keeping the output ripple below 20mVP-P. The LT8338 switching frequency can be set with an external resistor over the range of 300kHz to 3MHz. A SYNC/MODE pin allows synchronization to an external clock. It can also be used to select between Burst Mode operation and pulse-skipping mode, or to enable spread spectrum modulation to reduce EMI. The EN/UVLO pin has an accurate 1V threshold and can be used to program VINUVLO or to shut down the part. The LT8338 enters 100% duty cycle PassThru mode when VINis higher than the regulated VOUT. The LT8338 also features frequency foldback and internal soft-start for inductor current control during start-up.APPLICATIONSIndustrial and Automotive Power SuppliesBattery-Powered SystemsGeneral Purpose Step-Up |
LT834240V, 9A, Low IQ Synchronous Step-Up Silent Switcher with Input Disconnect and PassThru | Power Management (PMIC) | 3 | Active | The LT®8342 is a low IQ, synchronous step-up DC/DC converter. It features a Silent Switcher architecture and optional spread spectrum frequency modulation to minimize electromagnetic interference (EMI) emissions while delivering high efficiencies at high switching frequencies. Output short circuit protection and inrush current reduction are optional.The wide input/output voltage range, low VINpin quiescent current in Burst Mode operation, and 100% duty cycle capability for the synchronous MOSFET in PassThru operation (VIN≥ VOUT) make the LT8342 ideally suited for general-purpose step-up and automotive Pre- Boost applications.To reduce VOUTquiescent current in the feedback loop, an optional internal resistor divider (≥10MΩ) and two pins select 21 output voltage levels.The LT8342 integrates 40V, 9A power switches, operating at a switching frequency programmable between 300kHz and 3MHz and synchronizable to an external clock. The LT8342 features a programmable output soft-start, output power good flag, and output overvoltage lockout.APPLICATIONSAutomotive and Industrial Power SuppliesGeneral Purpose Step-Up |
LT83498V, 12A, 2-Phase Low IQ Synchronous Boost Converter | Power Management (PMIC) | 1 | Active | The LT8349 is a 2-phase single output synchronous boost converter that drives two internal N-Channel power MOSFET stages out-of-phase. Multiphase operation reduces input and output capacitor requirements and allows the use of smaller inductors than the single-phase equivalent. Synchronous rectification increases efficiency, reduces power losses, and eases thermal requirements, enabling high power boost applications.The LT8349 features Stage Shedding and selectable Burst Mode operation at light load conditions allowing high efficiency over a wide range of load. It features optional spread spectrum frequency modulation (SSFM) to minimize EMI emissions.The LT8349 integrates 8V/6A power switches, operating at a fixed switching frequency programmable between 300kHz and 4MHz and synchronizable to an external clock. The LT8349 features output soft-start and output overvoltage lockout.APPLICATIONSHandheld and Industrial Power Supplies |
| Integrated Circuits (ICs) | 1 | Active | |
