LTC3409 datasheet(2/16 Pages) LINER

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LTC3409

3409fc

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

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

RUN, VFB, MODE, SYNC Voltages . – 0.3V to (VIN + 0.3V)

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

Operating Temperature Range (Note 2) .. –40°C to 85°C

Junction Temperature (Note 3) ........................... 125°C

Storage Temperature Range.................. –65°C to 125°C

(Note 1)

The

● denotes speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are TA = 25°C. VIN = 2.2V unless otherwise speciﬁed.

TOP VIEW

DD PACKAGE

8-LEAD (3mm × 3mm) PLASTIC DFN

VFB

GND

VIN

SYNC

RUN

MODE

TJMAX = 125°C, θJA = 43°C/W

EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3409EDD#PBF

LTC3409EDD#TRPBF

LBNM

8-Lead (3mm × 3mm) Plastic DFN

–40°C to 85°C

LTC3409IDD#PBF

LTC3409IDD#TRPBF

LBNM

8-Lead (3mm × 3mm) Plastic DFN

–40°C to 85°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges. *Temperature grades are identiﬁed by a label on the shipping container.

Consult LTC Marketing for information on non-standard lead based ﬁnish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel speciﬁcations, go to: http://www.linear.com/tapeandreel/

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VRUN

RUN Threshold

●

0.3

0.65

1.1

IRUN

RUN Leakage Current

VRUN = 0V or = 2.2V

0.01

μA

VMODE

MODE Threshold

●

0.3

0.65

1.1

IMODE

MODE Leakage Current

VMODE = 0V or = 2.2V

0.01

μA

VSYNCTH

SYNC Threshold

●

0.3

0.65

1.1

ISYNC

SYNC Leakage Current

VSYNC = 0V or = 2.2V

0.01

μA

VFB

Regulated Feedback Voltage

(Note 4) TA = 25°C

(Note 4) 0°C ≤ TA ≤ 85°C

(Note 4) –40°C ≤ TA ≤ 85°C

●

0.6007

0.5992

0.5977

0.6130

0.6252

0.6268

0.6283

IVFB

Feedback Current

±30

ΔVOVL

ΔVFBOVL Overvoltage Lockout

ΔVOVL = ΔVFBOVL – VFB (Note 6)

ΔVFB

Reference Voltage Line Regulation

1.6V < VIN < 5.5V (Note 4)

●

0.04

0.4

%/V

ΔVOUT

Output Voltage Line Regulation

IOUT = 100mA, 1.6V < VIN < 5.5V

0.04

0.4

%/V

IPK

Peak Inductor Current

VFB = 0.5V or VOUT = 90%

0.75

1.3

VLOADREG

Output Voltage Load Regulation

VOUT = 1.2V, Pulse Skip Mode, 0 < ILOAD < 600mA

0.5

VIN

Input Voltage Range

●

1.6

5.5

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