LTM4606 datasheet(3/24 Pages) LINER

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LTM8050

8050fc

For more information www.linear.com/LTM8050

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 LTM8050E 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

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input Voltage

3.6

Output DC Voltage

0 < IOUT ≤ 2A; RFB Open

0 < IOUT ≤ 2A; RFB = 16.9k; VIN = 32V

0.8

Output DC Current

Quiescent Current into VIN

RUN/SS = 0V

Not Switching

BIAS = 0V, Not Switching

0.01

120

160

µA

Quiescent Current into BIAS

RUN/SS = 0V

Not Switching

BIAS = 0V, Not Switching

0.01

0.5

120

µA

Line Regulation

5.5V < VIN < 58V, IOUT = 1A

0.3

Load Regulation

0A < IOUT < 2A

0.3

Output Voltage Ripple (RMS)

0A < IOUT < 2A

Switching Frequency

RT = 45.3k

750

kHz

Voltage (at FB Pin)

775

770

790

805

810

Internal Feedback Resistor

499

kΩ

Minimum BIAS Voltage for Proper Operation

2.8

RUN/SS Pin Current

RUN/SS = 2.5V

µA

RUN Input High Voltage

2.5

RUN Input Low Voltage

0.2

PGOOD Threshold (at FB Pin)

VOUT Rising

730

PGOOD Leakage Current

PGOOD = 30V

0.1

µA

PGOOD Sink Current

PGOOD = 0.4V

200

600

µA

SYNC Input Low Threshold

fSYNC = 550kHz

0.5

SYNC Input High Threshold

fSYNC = 550kHz

0.7

SYNC Bias Current

SYNC = 0V

0.1

µA

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, RUN/SS = 12V, BIAS = 3V unless otherwise noted. (Note 2)

LTM8050I is guaranteed to meet specifications over the full –40°C

to 125°C internal operating temperature range. The LTM8050MP is

guaranteed to meet specifications over the full –55°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.

Note 3: Unless otherwise noted, the absolute minimum voltage is zero.

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