LT8610AB datasheet(4/26 Pages) LINER

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LT8619/LT8619-5

8619f

For more information www.linear.com/LT8619

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VEN/UV = 2V unless otherwise noted (Notes 2, 3)

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: All currents into device pins are positive; all currents out of device

pins are negative. All Voltages are referenced to ground unless otherwise

specified.

Note 3: The LT8619 is tested under pulse load conditions such that

TJ ≈ TA. The LT8619E 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

LT8619I is guaranteed over the full –40°C to 125°C operating junction

temperature range. High junction temperatures degrade operating

lifetimes. Operating lifetime is derated at junction temperatures greater

than 125°C.

Note 4: This IC includes overtemperature protection that is intended to

protect the device during overload conditions. Junction temperature will

exceed 150°C when overtemperature protection is active. Continuous

operation above the specified maximum operating junction temperature

will reduce lifetime.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Switch, Logic and Power Good

Top Switch On-Resistance

ILOAD = 0.1A

0.45

Ω

Bottom Switch On-Resistance

ILOAD = 0.1A

0.22

Ω

EN/UV Power-On Threshold

EN/UV Rising

0.94

1.0

1.1

EN/UV Power-On Hysteresis

EN/UV Shutdown Threshold

EN/UV Falling

0.34

0.56

0.92

EN/UV Pin Current

VEN/UV = 2V

–100

100

Overvoltage Threshold

VFB Rising Wrt. Regulated VFB

3.75

Positive Power Good Threshold

VFB Rising Wrt. Regulated VFB

7.5

Negative Power Good Threshold

VFB Falling Wrt. Regulated VFB

–5

–7.5

–10

Positive Power Good Delay

VFB = 0.8V ↑ 0.9V to PG Low

VFB = 0.9V ↓ 0.8V to PG High

µs

Negative Power Good Delay

VFB = 0.8V ↓ 0.7V to PG Low

VFB = 0.7V ↑ 0.8V to PG High

µs

PG Leakage

VPG = 3.3V, Power Good

±100

PG VOL

IPG = 100µA

0.01

0.3

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