Datasheet Analog Devices LT8331EMSE#WTRPBF — Datenblatt

LT8331
Low IQ Boost/SEPIC/Flyback/Inverting
Converter with 0.5A, 140V Switch
FEATURES DESCRIPTION Wide Input Voltage Range: 4.5V to 100V
n Ultralow Quiescent Current and Low Ripple
Burst Mode® Operation: IQ = 6µA
n 0.5A, 140V Power Switch
n Positive or Negative Output Voltage Programming
with a Single Feedback Pi Programmable Frequency (100kHz to 500kHz)
n Synchronizable to an External Clock
n BIAS Pin for Higher Efficiency
n Programmable Undervoltage Lockout (UVLO)
n Thermally-Enhanced High Voltage MSOP Package
n AEC-Q100 Qualified for Automotive Applications The LT®8331 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. n 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 …

LT8331
Low IQ Boost/SEPIC/Flyback/Inverting
Converter with 0.5A, 140V Switch
FEATURES DESCRIPTION Wide Input Voltage Range: 4.5V to 100V
nn Ultralow Quiescent Current and Low Ripple
Burst Mode® Operation: IQ = 6µA
nn 0.5A, 140V Power Switch
nn Positive or Negative Output Voltage Programming
with a Single Feedback Pin
nn Programmable Frequency (100kHz to 500kHz)
nn Synchronizable to an External Clock
nn BIAS Pin for Higher Efficiency
nn Programmable Undervoltage Lockout (UVLO)
nn Thermally-Enhanced High Voltage MSOP Package The LT®8331 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. nn 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 …