LTM4604 datasheet(3/20 Pages) LINER

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LTM4604

4604f

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.

ELECTRICAL CHARACTERISTICS The ● denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. VIN = 5V unless otherwise noted. See Figure 15.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IS(VIN)

Input Supply Current

VIN = 2.5V, VOUT = 1.5V, IOUT = 4A

VIN = 3.3V, VOUT = 1.5V, IOUT = 4A

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

2.9

2.2

1.45

Output Speciﬁcations

IOUT(DC)

Output Continuous Current

Range (See Output Current

Derating Curves for Different

VIN, VOUT and TA)

VIN = 3.3V, VOUT = 1.5V

ΔVOUT(LINE)

VOUT

Line Regulation Accuracy

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

●

0.1

0.2

ΔVOUT(LOAD)

VOUT

Load Regulation Accuracy

VOUT = 1.5V, 0A to 4A

VIN = 3.3V

VIN = 5V

●

0.3

0.6

VOUT(AC)

Output Ripple Voltage

IOUT = 0A, COUT = 22μF/X5R/Ceramic ×3

VIN = 3.3V, VOUT = 1.5V

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 = 22μF ×3, VOUT = 1.5V, RUN/SS = 10nF,

IOUT = 0A

VIN = 3.3V

VIN = 5V

tSTART

Turn-on Time

COUT = 22μF ×3, VOUT = 1.5V, IOUT = 1A Resistive Load,

TRACK = VIN and RUN/SS = Float

VIN = 3.3V

VIN = 5V

1.5

1.0

ΔVOUT(LS)

Peak Deviation for Dynamic

Load Step

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

COUT = 22μF ×3 Ceramic

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 = 22μF ×3

VIN = 3.3V, VOUT = 1.5V

VIN = 5V, VOUT = 1.5V

Control Section

VFB

Voltage at FB Pin

IOUT = 0A, VOUT = 1.5V, 0°C ≤ TA ≤ 85°C

IOUT = 0A, VOUT = 1.5V

●

0.792

0.788

0.8

0.808

0.812

IFB

0.2

μA

VRUN

RUN Pin On/Off Threshold

0.5

0.65

0.8

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

4.975

4.99

5.025

PGOOD

ΔVPGOOD

PGOOD Range

±7.5

RPGOOD

PGOOD Resistance

Open-Drain Pull-Down

150

Note 2: The LTM4604E is guaranteed to meet performance speciﬁcations

from 0°C to 85°C. Speciﬁcations over the – 40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls. The LTM4604I is guaranteed over the full

–40°C to 85°C temperature range.

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