LTC3113 datasheet(3/24 Pages) LINER

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LTC3113

3113f

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 LTC3113 is tested under pulsed load conditions such that

TJ ≈ TA. The LTC3113E is guaranteed to meet performance speciﬁcations

from 0°C to 85°C junction temperature. Speciﬁcations over the

–40°C to 125°C operating temperature range are assured by design,

characterization and correlation with statistical process controls. The

LTC3113I is guaranteed to meet performance speciﬁcations over the

–40°C to 125°C operating junction temperature range.

ELECTRICAL CHARACTERISTICS The l denotes speciﬁcations which apply over the full junction temperature

range, otherwise speciﬁcations are at TA = 25°C (Note 2). VIN = 3.3V, VOUT = 3.8V unless otherwise noted.

PARAMETER

CONDITION

MIN

TYP

MAX

UNITS

Input Operating Range

1.8

5.5

Output Voltage Adjust Range

1.8

5.5

Feedback Voltage

VBURST = 0V

588

600

612

Feedback Input Current

VFB = 0.7V

050

Quiescent Current–Burst Mode Operation

VBURST = 3.3V

μA

Quiescent Current–Shutdown

VOUT = 0V, VRUN = 0V, Not Including Switch Leakage

0.1

μA

Quiescent Current–Active

VFB = 0.7V, VBURST = 0V, RT = 90.9k

300

500

μA

Input Current Limit

5.8

7.8

9.8

Peak Current Limit

6.5

11.1

16.0

Burst Mode Peak Current Limit

0.9

1.9

2.9

Reverse Current Limit

–1.6

–1

–0.4

NMOS Switch Leakage

Switch B, SW1 = 5.5V, VIN = 5.5V, VOUT = 5.5V

Switch C, SW2 = 5.5V, VIN = 5.5V, VOUT = 5.5V

0.01

μA

PMOS Switch Leakage

Switch A, VIN = 5.5V, VOUT = 5.5V, SW1 = 0V

Switch D, VIN = 5.5V, VOUT = 5.5V, SW2 = 0V

0.01

μA

NMOS Switch On-Resistance

Switch B, VOUT = 3.8V

Switch C, VOUT = 3.8V

mΩ

PMOS Switch On-Resistance

Switch A, VIN = 3.3V

Switch D, VOUT = 3.8V

mΩ

Maximum Duty Cycle

Boost (% Switch C On)

Buck (% Switch A On)

100

Minimum Duty Cycle

Frequency Accuracy

RT = 90.9k

0.8

1.2

MHz

Error Amp AVOL

100

Error Amp Source Current

VC = 0V, VFB = 0V

500

μA

Error Amp Sink Current

VC = 1.2V, VFB = 0.7V

160

μA

BURST Input Logic Threshold

0.3

0.7

1.2

BURST Input Current

VBURST = 5.5V

μA

RUN Input Logic Threshold

0.3

0.7

1.2

RUN Input Current

VRUN = 5.5V

μA

Soft-Start Time

2ms

Note 3: This IC includes overtemperature protection that is intended to

protect the device during momentary overload conditions. The maximum

rated junction temperature will be exceeded when the protection is active.

Continuous operation above the speciﬁed absolute maximum operating

junction temperature may impair device reliability or permanently damage

the device.

Note 4: Voltage transients on the switch pins beyond the DC limit speciﬁed

in the absolute maximum ratings are non-disruptive to normal operation

when using good layout practices, as shown on the demo board or

described in the data sheet and application notes.

Note 5: The junction temperature (TJ in °C) is calculated from the ambient

temperature (TA in °C) and the power dissipation (PD in Watts) as follows:

TJ = TA + (PD) • (θJA°C/W)

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