LTM8053 datasheet(3/24 Pages) LINER

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LTM8063

8063fa

For more information www.linear.com/LTM8063

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: Unless otherwise noted, the absolute minimum voltage is zero.

Note 3: The LTM8063E is guaranteed to meet performance specifications

from 0°C to 125°C internal. Specifications over the full –40°C to

125°C internal operating temperature range are assured by design,

characterization and correlation with statistical process controls. The

LTM8063I is guaranteed to meet specifications over the full –40°C to

125°C internal operating temperature range. Note that the maximum

internal temperature is determined by specific operating conditions in

conjunction with board layout, the rated package thermal resistance and

other environmental factors.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

VIN Rising

3.2

Output DC Voltage

RFB Open

RFB = 13.7kΩ, VIN = 40V

0.8

Peak Output DC Current

VOUT = 3.3V, fSW = 1MHz

2.5

Quiescent Current into VIN

RUN = 0V

No Load, SYNC = 0V, Not Switching

µA

Line Regulation

5.5V < VIN < 36V, IOUT = 1A

0.5

Load Regulation

0.1A < IOUT < 2A

0.5

Output Voltage Ripple

IOUT = 2A

Switching Frequency

RT = 232kΩ, VIN = 8V

RT = 41.2kΩ

RT = 15.8kΩ

200

2.2

kHz

MHz

Voltage at FB

760

774

786

RUN Threshold Voltage

0.9

1.2

RUN Current

µA

TR/SS Current

TR/SS = 0V

µA

TR/SS Pull Down

TR/SS = 0.1V

300

PG Threshold Voltage at FB (Upper)

FB Falling (Note 5)

0.84

PG Threshold Voltage at FB (Lower)

FB Rising (Note 5)

0.7

PG Leakage Current

PG = 42V

µA

PG Sink Current

PG = 0.1V

150

µA

SYNC Threshold Voltage

Synchronization

0.4

1.5

SYNC Voltage

To Enable Spread Spectrum

2.9

4.2

SYNC Current

SYNC = 2V

µA

The l denotes the specifications which apply over the specified operating

temperature range, otherwise specifications are at TJ = 25°C. VIN = 12V, RUN = 2V, unless otherwise noted.

Note 4: The LTM8063 contains overtemperature protection that is

intended to protect the device during momentary overload conditions. The

internal temperature exceeds the maximum operating junction temperature

when the overtemperature protection is active. Continuous operation

above the specified maximum operating junction temperature may impair

device reliability.

Note 5: PG transitions from low to high.

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