LTM4615IV View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTM4615IV

Triple Output, Low Voltage DC/DC µModule Regulator

Linear Technology 

LTM4615

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, LDO_IN = 1.2V unless otherwise noted.

Per Typical Application Figure 12.

SYMBOL

PARAMETER

CONDITIONS

MIN TYP MAX

VFB3

FB3 Internal Reference Voltage

VLDO_OUT

VDO

LDO_RHI

IOUT

ILIM

en

VIH_EN3

VIL_EN3

IIN_EN3

VOL_PGOOD3

PGOOD Threshold

Output Voltage Range

Dropout Voltage

LDO Top Feedback Resistor

Output Current

Output Current Limit

Output Voltage Noise

EN3 Input High Voltage

EN3 Input Low Voltage

EN3 Input Current

PGOOD Low Voltage

Output Threshold

Relative to VFB3

1mA ≤ IOUT ≤ 1.5A, 1.14V ≤ VLDO_IN ≤ 3.5V,

BOOST3 = 5V, 1V ≤ VOUT ≤ 2.59V

0.397 0.4 0.404

l 0.395 0.4 0.405

0.4

2.6

VLDO_IN = 1.5V, VFB3 = 0.38V, IOUT = 1.5A (Note 4)

100 250

4.96 4.99 5.02

VEN3 = 1.2V

(Note 5)

l 1.5

2.5

Frequency = 10Hz to 1MHz, ILOAD = 1A

1.14V ≤ VLDO_IN ≤ 3.5V

1.14V ≤ VLDO_IN ≤ 3.5V

l1

–1

300

0.4

1

IPGOOD3 = 2mA

PGOOD3 High to Low

PGOOD3 Low to High

0.1 0.4

–14 –12 –10

–4

–3

–2

UNITS

V

V

V

mV

kΩ

A

A

μRMS

V

V

μA

V

%

%

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 LTM4615E 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 LTM4615I 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: Minimum operating voltage required for regulation is:

VIN ≥ VOUT(MIN) + VDROPOUT

Note 4: Dropout voltage is the minimum input to output differential needed

to maintain regulation at a specified output current. In dropout the output

voltage will be equal to VIN – VDROPOUT.

Note 5: 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 6: See output current derating curves for different VIN, VOUT and TA.

4615f

4

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