LTC3446

4

3446fd

ELECTRICAL CHARACTERISTICS

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The LTC3446E is guaranteed to meet performance specifications

from 0°C to 85°C. Specifications over the – 40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls. The LTC3446I is guaranteed to

meet performance specifications over the –40°C to 125°C operating

temperature range.

to stay in regulation is:

Note 4: Dynamic supply current is higher due to the internal gate charge

being delivered at the switching frequency.

Note 5: The LTC3446 is tested in a feedback loop that connects the

BUCKFB pin to the output of the buck converter’s error amplifier (i.e., the

to stay in regulation is:

Note 7: Operating conditions are limited by maximum junction

temperature. The regulated output voltage specification will not apply

for all possible combinations of input voltage and output current. When

operating at maximum input voltage, the output current range must be

limited. When operating at maximum output current, the input voltage

range must be limited.

Note 8: PGOOD assertion indicates that the feedback voltages of all

enabled supplies are within the specified percentage of their target values.

Note 9: Dropout voltage in the DFN package is assured by design,

characterization and statistical process control.