LTM4614EVPBF datasheet(3/20 Pages) LINER

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LTM4614

4614fa

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IOUT(DC)

Output Continuous Current Range

VIN = 3.3V, VOUT = 1.5V (Note 5)

ΔVOUT(LINE)

VOUT

Line Regulation Accuracy

VOUT = 1.5V, VIN from 2.375V to 5.5V, IOUT = 0A

0.1

0.3

ΔVOUT(LOAD)

VOUT

Load Regulation Accuracy

VOUT = 1.5V, 0A to 4A (Note 5), VIN = 2.375V to 5.5V

0°C ≤ TJ ≤ 125°C

0.7

1.2

1.25

1.5

VOUT(AC)

Output Ripple Voltage

IOUT = 0A, COUT = 100μF (X5R)

VIN = 5V, VOUT = 1.5V

mVP-P

Output Ripple Voltage Frequency

IOUT = 4A, VIN = 5V, VOUT = 1.5V

1.25

MHz

ΔVOUT(START) Turn-On Overshoot

COUT = 100μF, VOUT = 1.5V, RUN/SS = 10nF,

IOUT = 0A

VIN = 3.3V

VIN = 5V

tSTART

Turn-On Time

COUT = 100μF, VOUT = 1.5V, IOUT = 1A Resistive Load,

TRACK = VIN and RUN/SS = Float

VIN = 5V

0.5

ΔVOUT(LS)

Peak Deviation for Dynamic Load

Load: 0% to 50% to 0% of Full Load,

COUT = 100μF, VIN = 5V, VOUT = 1.5V

tSETTLE

Settling Time for Dynamic Load

Step

Load: 0% to 50% to 0% of Full Load,

VIN = 5V, VOUT = 1.5V

μs

IOUT(PK)

Output Current Limit

COUT = 100μF

VIN = 5V, VOUT = 1.5V

VFB

Voltage at FB Pin

IOUT = 0A, VOUT = 1.5V

0.792

0.788

0.8

0.808

0.810

IFB

0.2

μA

VRUN

RUN Pin On/Off Threshold

0.6

0.75

0.9

ITRACK

TRACK Pin Current

0.2

μA

VTRACK(OFFSET) Offset Voltage

TRACK = 0.4V

VTRACK(RANGE) Tracking Input Range

0.8

RFBHI

Resistor Between VOUT and FB Pins

4.96

4.99

5.025

kΩ

ΔVPGOOD

PGOOD Range

±7.5

RPGOOD

PGOOD Resistance

Open-Drain Pull-Down

150

ELECTRICAL CHARACTERISTICS The l denotes the speciﬁcations which apply over the full internal

operating temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 5V unless otherwise noted. Refer to Figure 1.

Speciﬁed as each channel (Note 6).

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 LTM4614E is guaranteed to meet performance speciﬁcations

over the 0°C to 125°C internal operating temperature range. Speciﬁcations

over the –40°C to 125°C internal operating temperature range are assured

by design, characterization and correlation with statistical process

controls. The LTM4614I is guaranteed to meet speciﬁcations over the full

internal operating temperature range. Note that the maximum ambient

temperature is determined by speciﬁc operating conditions in conjunction

with board layout, the rated package thermal resistance and other

environmental factors.

Note 3: See Application Note 100.

Note 4: The IC has overtemperature protection that is intended to protect

the device during momentary overload conditions. Junction temperatures

will exceed 125°C when overtemperature is activated. Continuous

overtemperature activation can impair long-term reliability.

Note 5: See output current derating curves for different VIN, VOUT and TA.

Note 6: Two channels are tested separately and the speciﬁed test

conditions are applied to each channel.

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