LT8330 datasheet(3/24 Pages) LINER

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LT8330

8330fa

For more information www.linear.com/LT8330

elecTrical characTerisTics The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, EN/UVLO = 12V unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN Operating Voltage Range

VIN Quiescent Current at Shutdown

VEN/UVLO = 0.2V

0.9

µA

VEN/UVLO = 1.5V

3.6

9.5

µA

VIN Quiescent Current

Sleep Mode, Not Switching

5.5

8.5

µA

Active Mode, Not Switching

780

840

1100

1200

µA

FBX Regulation

FBX Regulation Voltage

FBX > 0V

FBX < 0V

1.568

–0.820

1.6

–0.80

1.632

–0.780

FBX Line Regulation

FBX > 0V, 3V < VIN < 40V

FBX < 0V, 3V < VIN < 40V

0.005

0.015

%/V

FBX Pin Current

FBX = 1.6V, –0.8V

–10

Oscillator

Switching Frequency (fOSC)

VIN = 24V

1.85

2.0

2.15

MHz

Minimum On-Time

VIN = 24V

105

Minimum Off-Time

VIN = 24V

Switch

Maximum Switch Current Limit Threshold

1.0

1.2

1.4

Switch RDS(ON)

ISW = 0.5A

330

mΩ

Switch Leakage Current

VSW = 60V

0.1

µA

EN/UVLO Logic

EN/UVLO Pin Threshold (Rising)

Start Switching

1.620

1.68

1.745

EN/UVLO Pin Threshold (Falling)

Stop Switching

1.556

1.60

1.644

EN/UVLO Pin Current

VEN/UVLO = 1.6V

–40

Soft-Start

Soft-Start Time

VIN = 24V

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: INTVCC cannot be externally driven. No additional components or

loading is allowed on this pin.

Note 3: The LT8330E 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

LT8330I is guaranteed over the full –40°C to 125°C operating junction

temperature range. The LT8330H is guaranteed over the full –40°C to

150°C operating junction temperature range. High junction temperatures

degrade operating lifetimes. Operating lifetime is derated at junction

temperatures greater than 125°C.

Note 4: The 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.

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