LTM4618(RevA) Ver la hoja de datos (PDF) - Linear Technology

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Fabricante

LTM4618
(Rev.:RevA)

6A DC/DC µModule Regulator with Tracking and Frequency Synchronization

Linear Technology 

LTM4618

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

operating temperature range, otherwise specifications are at TA = 25°C (Note 2), VIN = 12V, per typical application in Figure 21.

SYMBOL

fHIGH

VIH(MODE/PLLIN)

VIL(MODE/PLLIN)

RMODE/PLLIN

IFREQ

VRUN

VRUN Hysteresis

RFBHI

PGOOD Output

VPGL

IPGOOD

VPG

PARAMETER

Highest Frequency

Synchronous Clock High Level

Synchronous Clock Low Level

MODE/PLLIN Input Resistance

FREQ Pin

Sinking Current

Sourcing Current

RUN Pin On Threshold

RUN Pin Hysteresis

Resistor Between VOUT and VFB Pins

CONDITIONS

VFREQ ≥ 2.4V, INTVCC

fMODE/PLLIN > fOSC

fMODE/PLLIN < fOSC

RUN Rising

PGOOD Voltage Low

PGOOD Leakage Current

PGOOD Trip Level

IPGOOD = 2mA

VPGOOD = 5V

VFB with Respect to Set Regulated Voltage

VFB Ramping Negative

VFB Ramping Positive

MIN TYP MAX UNITS

700 780 860 kHz

2.0

V

0.8

V

250

kΩ

–13

μA

13

μA

1.1 1.22 1.35

V

120

mV

60.1 60.4 60.7

kΩ

0.1 0.3

V

±2

μA

–5 –7.5 –10

%

5

7.5 10

%

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 LTM4618 is tested under pulsed load conditions such that

TJ ≈ TA. The LTM4618E is guaranteed to meet performance specifications

over the 0°C to 125°C internal operating temperature range. Specifications

over the full –40°C to 125°C internal operating temperature range are

assured by design, characterization and correlation with statistical process

controls. The LTM4618I is guaranteed to meet specifications over the full

internal operating 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: 100% tested at wafer level only.

Note 4: See Output Current Derating curves for different VIN, VOUT and TA.

Note 5: For input voltages less than 6V, tie the VIN, INTVCC and EXTVCC

together. The LTM4618 will operate from 5V inputs, but VIN, INTVCC and

EXTVCC need to be tied together.

4618fa

4

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