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LT3682

3682f

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN, RUN/SS Voltage (Note 2) …….…………….....60V

BOOST Pin Voltage …………………………..…….50V

BOOST Pin Above SW Pin …………………..……..30V

FB, RT, VC Voltage ......................................................5V

SYNC …………………………….………….……. 20V

BD and PG Voltage ..…….………………..………..30V

Operating Junction Temperature Range (Notes 3 and 6)

LT3682E ……………….…………...

−40°C to 125°C

LT3682I …………………………….

−40°C to 125°C

Storage Temperature Range …………..

−65°C to 150°C

(Note 1)

TOP VIEW

DD PACKAGE

12-LEAD (3mm

3mm) PLASTIC DFN

VIN

SYNC

RUN/SS

GND

BOOST 6

θJA = 43°C/W

EXPOSED PAD (PIN 13) IS PGND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3682EDD#PBF

LT3682EDD#TRPBF

LFDW

12-Lead (3mm

× 3mm) Plastic DFN

–40°C to 125°C

LT3682IDD#PBF

LT3682IDD#TRPBF

LFDW

12-Lead (3mm

× 3mm) Plastic DFN

–40°C to 125°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges. *The temperature grade is 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/

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Operating Voltage

VBD = 3.3V

VBD < 3.0V

3.4

3.6

4.3

VIN Overvoltage Lockout

Quiescent Current from VIN

VRUN/SS = 0.2V

VRUN/SS = 10V, VBD = 3.3V, Not Switching

VRUN/SS = 10V, VBD = 0V, Not Switching

0.01

0.5

160

μA

Quiescent Current from BD Pin

VRUN/SS = 0.2V

VRUN/SS = 10V, VBD = 3.3V, Not Switching

VRUN/SS = 10V, VBD = 0V, Not Switching

0.01

0.5

100

μA

Minimum BD Pin Voltage

2.8

Feedback Voltage

792

780

800

808

812

FB Pin Bias Current (Note 4)

FB Pin Voltage = 800mV

580

FB Voltage Line Regulation

3.6V < VIN < 36V

0.001

0.005

%/V

Error Amp gm

IVC = ±1.5μA

430

μS

Error Amp Voltage Gain

1300

V/V

The

l denotes speciﬁcations which apply over the full operating temperature

range, otherwise speciﬁcations are at TA = 25°C, VIN = 10V, VRUN/SS = 10V, VBD = 3.3V unless otherwise noted. (Note 3)

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