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LTM4604AV

Low Voltage, 4A DC/DC µModule Regulator with Tracking

Analog Devices 

LTM4604A

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

operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = 5V unless otherwise noted. See Figure 15.

SYMBOL

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

VIN(DC)

Input DC Voltage

VOUT(DC)

Output Voltage, Total Variation CIN = 10µF, COUT = 22µF × 3, RFB = 5.69k

with Line and Load

VIN = 2.375V to 5.5V, IOUT = 0A to 4A (Note 3)

Input Specifications

l 2.375

5.5

V

1.482 1.5 1.518

V

l 1.474 1.5 1.522

V

VIN(UVLO)

Undervoltage Lockout

Threshold

IOUT = 0A

1.75

2

2.3

V

IINRUSH(VIN)

IQ(VIN NOLOAD)

IS(VIN)

Peak Input Inrush Current at

Start-Up

Input Supply Bias Current

Input Supply Current

IOUT = 0A, CIN = 10µF, COUT = 22µF × 3,

RUN/SS = 0.01µF, VOUT = 1.5V

VIN = 3.3V

VIN = 5V

VIN = 3.3V, No Switching

VIN = 3.3V, VOUT = 1.5V, Switching Continuous

VIN = 5V, No Switching

VIN = 5V, VOUT = 1.5V, Switching Continuous

Shutdown, RUN = 0, VIN = 5V

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

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

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

0.7

A

0.7

A

60

µA

28

mA

100

µA

35

mA

7

µA

2.9

A

2.2

A

1.45

A

Output Specifications

IOUT(DC)

Output Continuous Current

Range

VIN = 3.3V, VOUT = 1.5V (Note 3)

4

A

ΔVOUT(LINE)

Line Regulation Accuracy

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

l

VOUT

ΔVOUT(LOAD)

Load Regulation Accuracy VOUT = 1.5V, 0A to 4A (Note 3)

VOUT

VIN = 3.3V

VIN = 5V

l

l

VOUT(AC)

Output Ripple Voltage

IOUT = 0A

VIN = 3.3V, VOUT = 1.5V

VIN = 5V, VOUT = 1.5V

fS

Output Ripple Voltage

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

Frequency

0.1

0.2

%

0.3

0.6

%

0.3

0.6

%

10

mVP-P

12

mVP-P

1.25

MHz

ΔVOUT(START)

tSTART

ΔVOUT(LS)

tSETTLE

IOUT(PK)

Turn-On Overshoot

Turn-on Time

Peak Deviation for Dynamic

Load Step

Settling Time for Dynamic

Load Step

Output Current Limit

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

IOUT = 0A

VIN = 3.3V

VIN = 5V

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

TRACK = VIN and RUN/SS = Float

VIN = 3.3V

VIN = 5V

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

COUT = 22µF ×3 Ceramic

VIN = 5V, VOUT = 1.5V

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

VIN = 5V, VOUT = 1.5V

VIN = 3.3V, VOUT = 1.5V

VIN = 5V, VOUT = 1.5V

20

mV

20

mV

1.5

ms

1.0

ms

25

mV

10

µs

8

A

8

A

Rev. D

For more information www.analog.com

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