LTM4611 datasheet(5/28 Pages) LINER

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LTM4611

4611f

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 LTM4611 is tested under pulsed load conditions such that

TJ ≈ TA. The LTM4611E is guaranteed to meet performance specifications

over the 0°C to 125°C operating junction temperature (TJ) range.

Specifications over the full –40°C to 125°C operating junction temperature

range are assured by design, characterization and correlation with

statistical process controls. The LTM4611I is guaranteed to meet

specifications over the full –40°C to 125°C operating junction temperature

range. Note that the maximum ambient temperature consistent with

these specifications is determined by specific operating conditions in

conjunction with board layout, the rated package thermal resistance and

other environmental factors.

Note 3: Consistent with Pb-free 260°C peak IR reflow soldering profiles.

See Application Note 100.

Note 4: See output current derating curves for different VIN, VOUT and TA.

Note 5: The minimum on-time condition is specified for a peak-to-peak

inductor ripple current of ~40% of IMAX Load. (See the Typical Applications

section)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

PLLFLTR/fSET(FLOAT) PLLFLTR/fSET Open-Circuit

Voltage

PLLFLTR/fSET Pin Voltage When Floating

1.23

Frequency Nominal Nominal Frequency

PLLFLTR/fSET Floating

500

kHz

Frequency Low

Lowest Frequency

PLLFLTR/fSET = 0.85V

330

kHz

Frequency High

Highest Frequency

PLLFLTR/fSET = 2.0V

780

kHz

IPLLFLTR

PLLFLTR

Sourcing Capability

Sinking Capability

Mode_PLLIN Frequency > fOSC

Mode_PLLIN Frequency < fOSC

–13

µA

RMODE(PLLIN)

Mode_PLLIN Input Resistance

250

kΩ

VIH

Clock Input Level High

2.0

VIL

Clock Input Level Low

0.6

Mode_PLLIN

Clock

Clock Input Duty Cycle Range

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.

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