LTC3413 datasheet(2/16 Pages) LINER

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LTC3413

sn3413 3413fs

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Input Voltage Range

2.25

5.5

VFB

Feedback Voltage Accuracy

(Note 3)

±1%

IFB

Voltage Feedback Leakage Current

0.4

µA

IRUN

RUN/SS Leakage Current

µA

∆VFB

Feedback Voltage Line Regulation

VIN = 2.7V to 5.5V (Note 3)

0.04

0.2

%/V

VLOADREG

Feedback Voltage Load Regulation

Measured in Servo Loop, VITH = 0.36V

0.02

0.2

Measured in Servo Loop, VITH = 0.84V

– 0.02

– 0.2

∆VPGOOD

Power Good Range

±10

±12

RPGOOD

Power Good Pull-Down Resistance

120

200

Ω

Input DC Bias Current

(Note 4)

Active Current

VFB = 1.5V, VITH = 1.4V, VREF = 2.5V

250

330

µA

Shutdown

VRUN = 0V (Note 7)

0.02

µA

fOSC

Switching Frequency

ROSC = 309k

0.88

1.00

1.12

MHz

Switching Frequency Range

(Note 6)

0.30

2.00

MHz

RPFET

RDS(ON) of P-Channel FET

ISW = 300mA

110

Ω

RNFET

RDS(ON) of N-Channel FET

ISW = 300mA

Ω

ILIMIT

Peak Current Limit

3.8

5.4

VUVLO

Undervoltage Lockout Threshold

1.75

2.25

ILSW

SW Leakage Current

VRUN = 0V, VIN = 5.5V (Note 7)

0.1

µA

VRUN

RUN Threshold

0.5

0.65

0.8

FE PACKAGE

16-LEAD PLASTIC TSSOP

EXPOSED PAD (PIN 17)

MUST BE SOLDERED TO SGND

TOP VIEW

SVIN

PGOOD

ITH

VFB

VREF

RUN/SS

SGND

PVIN

PGND

PVIN

(Note 1)

SVIN, PVIN Supply Voltages ........................ – 0.3V to 6V

ITH, RUN/SS, VFB, PGOOD Voltages ........... – 0.3V to VIN

VREF Voltage .............................................. – 0.3V to VIN

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

Peak SW Sink and Source Current ........................ 7.2A

Operating Ambient Temperature Range

(Note 2) .............................................. – 40

°C to 85°C

Junction Temperature (Notes 5, 8) ...................... 125

°C

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

°C to 150°C

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

°C

ORDER PART

NUMBER

LTC3413EFE

The q denotes specifications which apply over the full operating

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

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

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

Consult LTC Marketing for parts specified with wider operating temperature ranges.

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The LTC3413E is guaranteed to meet performance specifications

from 0

°C to 70°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 3: The LTC3413E is tested in a feedback loop that adjusts VFB to

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: LTC3413E: TJ = TA + (PD • 38°C/W)

Note 6: 2MHz operation is guaranteed by design and not production tested.

Note 7: Shutdown current and SW leakage current are only tested during

wafer sort.

Note 8: 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 reliability.

FE PART

MARKING

3413EFE

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