LT8338

4

Rev. 0

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PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SYNC/MODE Pulse Width High

Synchronization Mode

30

ns

SYNC/MODE Pulse Width Low

Synchronization Mode

30

ns

Bottom Switch Current Limit

l

1.2

1.4

1.6

A

Bottom Switch Minimum Off-Time

50

ns

Bottom Switch Minimum On-Time

80

ns

Bottom Switch On-Resistance

240

mΩ

Top Switch Current Limit (Note 7)

PassThru Mode

1.3

1.6

1.9

A

Top Switch On-Resistance

240

mΩ

l

denotes the specifications which apply over the full operating

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: Do not drive these pins.

Note 3: The LT8338E is guaranteed to meet performance specifications

from 0°C to 125°C junction temperature. Specifications over the –40°C

to 125°C operating junction temperature range are assured by design,

characterization and correlation with statistical process controls. The

LT8338J is guaranteed over the full –40° to 150°C operating junction

temperature range. High junction temperatures degrade operating

lifetimes; operating lifetime is derated for junction temperatures of greater

than 125°C.

Note 4: These ICs include overtemperature protection that is intended to

protect the device during momentary overload conditions. The maximum

rated junction temperature will be exceeded when this protection is active.

Continuous operation above the specified absolute maximum operating

junction temperature may impair device reliability or permanently damage

the device.

Note 7: Top Switch Current Limit prevents the bottom switch from turning

on until the switch current has dropped below the limit.