LTM4611 datasheet(3/28 Pages) LINER

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LTM4611

4611f

elecTrical characTerisTics The

denotes the specifications which apply over the full internal operating

junction temperature range, otherwise specifications are at TA = 25°C, VIN = 3.3V, per the typical application in Figure 21.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Specifications

VIN

Input DC Voltage

1.5

5.5

VRUN

RUN Pin On Threshold

VRUN Rising

1.1

1.22

1.35

VRUNHYS

RUN Pin On Hysteresis

VRUN(FLOAT)

RUN Pin Voltage when Floating

3.4

3.65

IRUN(UP,1V)

RUN Pin Pull-Up Current

(RUN = 1V)

1.1

µA

IRUN(UP,1.5V)

RUN Pin Pull-Up Current

(RUN = 1.5V)

µA

IRUN(DOWN,5V)

RUN Pin Pull-Down Current

(RUN = 5V)

Input Supply Bias Current

VOUT = 1.5V, Burst Mode Operation, IOUT = 0.1A

VOUT = 1.5V, Pulse-Skipping Mode, IOUT = 0.1A

VOUT = 1.5V, Switching Continuous, IOUT = 0.1A

Shutdown, RUN = 0V

140

145

1.1

IS(VIN)

Input Supply Current

VIN = 2.5V, VOUT = 1.5V, IOUT = 15A

VIN = 3.3V, VOUT = 1.5V, IOUT = 15A

VIN = 5V, VOUT = 1.5V, IOUT = 15A

VIN = 1.5V, VOUT = 0.8V, IOUT = 15A

10.4

7.9

5.3

10.2

Output Specifications

VOUT(DC)

Output Voltage, Total Variation

with Line and Load

Utilizing DIFF_AMP, RFB = Not Used, VIN = 1.5V to

5.5V, IOUT = 0A to 15A (Note 4), RFB Electrically

Floating, MODE_PLLIN = GND

0.785

0.781

0.797

0.809

0.813

VOUT(RANGE)

Utilizing DIFF_AMP

(Example See Figure 21)

3.7

Not Utilizing DIFF_AMP

(Example See Figure 20)

5.4

IOUT(DC)

Output Continuous Current Range VOUT = VFB (Note 4)

∆VOUT (Line)

VOUT

Line Regulation Accuracy

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

0.3

∆VOUT (Load)

VOUT

Load Regulation Accuracy

VOUT = 1.5V, IOUT = 0A to 15A, VIN = 3.3V

(Note 4)

0.2

0.5

VOUT(AC)

Output Ripple Voltage

IOUT = 0A, COUT = 100µF ×4 X5R Ceramic,

VIN = 3.3V, VOUT = 1.5V

mVP-P

∆VOUT(START)

Turn-On Overshoot

COUT = 100µF ×4 X5R Ceramic, VOUT = 1.5V,

IOUT = 0A, VIN = 3.3V, CSS = 1nF

tSTART

Turn-On Time

COUT = 100µF ×4 X5R Ceramic, No Load,

CSS = 1nF, VIN = 3.3V, VOUT = 1.5V

500

µs

∆VOUTLS

Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load

VIN = 3.3V, VOUT = 1.5V, COUT = 100µF ×4

X5R Ceramic, CFF = 100pF

tSETTLE

Settling Time for Dynamic Load

Step

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

VIN = 3.3V, VOUT = 1.5V, COUT = 100µF ×4

X5R Ceramic, CFF = 100pF

µs

IOUT(PK)

Output Current Limit

VIN = 5V, VOUT = 1.5V

VIN = 3.3V, VOUT = 1.5V

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