LTC3414MPFE datasheet(2/16 Pages) LINER

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LTC3414

3414fb

Input Supply Voltage ................................... –0.3V to 6V

ITH, RUN/SS, VFB,

SYNC/MODE Voltages .................................. –0.3 to VIN

SW Voltages ................................. –0.3V to (VIN + 0.3V)

Peak SW Sink and Source Current ......................... 9.5A

Operating Temperature Range (Note 2)

E, I Grades .............................................. – 40

°C to 85°C

MP Grade ............................................. – 55

°C to 125°C

Junction Temperature (Notes 5, 6) ....................... 125

°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

ORDER PART

NUMBER

EXPOSED PAD (PIN 21), MUST BE SOLDERED TO PCB

TJMAX = 125°C, θJA = 38°C/W, θJC = 10°C/W

LTC3414EFE

LTC3414IFE

LTC3414MPFE

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

ELECTRICAL CHARACTERISTICS

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 LTC3414E is guaranteed to meet performance specifications

from 0

°C to 85°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls. The LTC3414I is guaranteed over the full

–40

°C to 85°C operating temperature range. The LTC3414MP is

guaranteed over the full –55

°C to 125°C operating tempaerature range.

Note 3: The LTC3414 is tested in a feedback loop that adjusts VFB to

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = 3.3V unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Input Voltage Range

●

2.25

5.5

IFB

Feedback Pin Input Current

(Note 3)

0.2

μA

VFB

Regulated Feedback Voltage

E, I Grade (Note 3)

●

0.784

0.800

0.816

MP Grade

0.780

0.800

0.816

ΔVFB

Reference Voltage Line Regulation

VIN = 2.7V to 5.5V (Note 3)

●

0.04

0.2

VLOADREG

Output Voltage Load Regulation

Measured in Servo Loop, VITH = 0.36V

●

0.02

0.2

Mesured in Servo Loop, VITH = 0.84V

●

–0.02

–0.2

ΔVPGOOD

Power Good Range

±7.5

±9%

RPGOOD

Power Good Resistance

120

200

Input DC Bias Current

(Note 4)

Active Current

VFB = 0.75V, VITH = 1.2V

250

330

μA

Sleep

VFB = 1V, VITH = 0V, VSYNC/MODE = 0V

100

μA

Shutdown

VRUN = 0V

0.02

μA

fOSC

Switching Frequency

ROSC = 294k

0.88

1.00

1.12

MHz

Switching Frequency Range

0.3

MHz

fSYNC

SYNC Capture Range

0.3

MHz

RPFET

RDS(ON) of P-Channel FET

ISW = 300mA

100

RNFET

RDS(ON) of N-Channel FET

ISW = –300mA

100

ILIMIT

Peak Current Limit

VUVLO

Undervoltage Lockout Threshold

1.75

2.00

2.25

ILSW

SW Leakage Current

VRUN = 0V, VIN = 5.5V

0.1

1.0

μA

VRUN

RUN Threshold

0.5

0.65

0.8

TOP VIEW

PGND

SYNC/MODE

RUN/SS

SGND

PVIN

PGND

VFB

ITH

PGOOD

SVIN

PVIN

PGND

FE PACKAGE

20-LEAD PLASTIC TSSOP

achieve a specified error amplifier output voltage (ITH).

Note 4: Dynamic supply current is higher due to the internal gate charge

being delivered at the switching frequency.

Note 5: TJ is calculated from the ambient temperature TA and power

dissipation PD as follows: TJ =TA + (PD)(38°C/W)

Note 6: This IC includes overtemperature protection that is intended to

protect the device during momentary overload conditions. Junction

temperature will exceed 125

°C when overtemperature protection is active.

Continuous operation above the specified maximum operating junction

temperature may impair device reliabability.

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF

Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

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