LT3434IFE#PBF

LT3434 is a 200KHz monolithic buck switching regulator that accepts input voltages upto 60V. Current mode topology is used for fast transient response and good loop stability. Innovative design techniques integrated in a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by employing Burst Mode operation at low currents, utilizing the output to bias the internal circuitry, and by using a supply boost capacitor to fully saturate the power switch. Patented circuitry maintains peak switch current over the full duty cycle range. External synchronization can be implemented by driving the SYNC pin with logic-level inputs. A single capacitor from the CSS pin to the output provides a controlled output voltage ramp (soft-start). It is used in application such as high voltage power conversion, 14V and 42V automotive systems, industrial power systems, distributed power systems, battery-powered systems etc.

• Wide input voltage range is 3.3V to 60V
• Peak switch current is 4.7A typical
• Supply shutdown current is 0.1µA typical
• Power good flag with programmable threshold
• Load dump protection to 60V, soft-start capability
• Saturating switch design is 0.1ohm typical
• Peak switch current maintained over full duty cycle range
• 1.25V feedback reference voltage, easily synchronizable
• Operating junction temperature is -40°C to 125°C
• Package style is 16-lead plastic TSSOP

Notes

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