LTC3416EFE datasheet(2/16 Pages) LINER

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LTC3416

3416f

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Input Voltage Range

2.25

5.5

VFB

Regulated Feedback Voltage

(Note 3)

0.784

0.800

0.816

IFB

Feedback Input Current

0.2

µA

∆VFB

Reference Voltage Line Regulation

VIN = 2.5V to 5.5V (Note 3)

0.04

0.2

%/V

VTRACK

Tracking Voltage Offset

VTRACK = 0.4V

Tracking Voltage Range

0.8

VLOADREG

Output 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

±7.5

±9%

RPGOOD

Power Good Resistance

120

200

Ω

Input DC Bias Current

(Note 4)

Active Current

VFB = 0.7V, VITH = 1.2V

300

350

µA

Shutdown

VRUN = 0V

0.02

µA

fOSC

Switching Frequency

ROSC = 294kΩ

0.88

1.12

MHz

Switching Frequency Range

0.30

4.00

MHz

fSYNC

SYNC Capture Range

0.3

MHz

RPFET

RDS(ON) of P-Channel FET

ISW = 300mA

100

Ω

RNFET

RDS(ON) of N-Channel FET

ISW = –300mA

100

Ω

ILIMIT

Peak Current Limit

VUVLO

Undervoltage Lockout Threshold

1.75

2.25

ILSW

SW Leakage Current

VRUN = 0V, VIN = 5.5V

0.1

µA

VRUN

RUN Threshold

0.5

0.65

0.8

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

ITH, RUN, VFB Voltages .............................. – 0.3V to VIN

TRACK Voltage .......................................... – 0.3V to VIN

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

Peak SW Sink and Source Current ......................... 11A

Operating Ambient Temperature Range

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

°C to 85°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

(Note 1)

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

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

LTC3416EFE

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

EXPOSED PAD IS GND (PIN 21)

MUST BE SOLDERED TO PCB

The q denotes the specifications which apply over the full operating

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

ELECTRICAL CHARACTERISTICS

FE PACKAGE

20-LEAD PLASTIC TSSOP

TOP VIEW

PGND

TRACK

RUN/SS

SGND

PVIN

PGND

VFB

ITH

PGOOD

SVIN

PVIN

PGND

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

of a device may be impaired.

Note 2: The LTC3416E 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 LTC3416 is tested in a feedback loop that adjusts VFB to

achieve a specified error amplifier output voltage (ITH).

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