LT3493

2

3493fb

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

(Note 1)

TOP VIEW

SHDN

SW

FB

GND

BOOST

DCB PACKAGE

6-LEAD (2mm

3mm) PLASTIC DFN

4

5

7

6

3

2

1

EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3493EDCB#PBF

LT3493EDCB#TRPBF

LCGG

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 85°C

LT3493IDCB#PBF

LT3493IDCB#TRPBF

LCGH

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

LEAD BASED FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3493EDCB

LT3493EDCB#TR

LCGG

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 85°C

LT3493IDCB

LT3493IDCB#TR

LCGH

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 125°C

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

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/

BOOST Pin Voltage ..................................................50V

BOOST Pin Above SW Pin.........................................25V

SHDN Pin..................................................................40V

FB Voltage...................................................................6V

Operating Temperature Range (Note 2)

LT3493E .............................................. –40°C to 85°C

LT3493I ............................................. –40°C to 125°C

Maximum Junction Temperature .......................... 125°C

Storage Temperature Range................... –65°C to 150°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

3.6

36

V

Undervoltage Lockout

3.1

3.4

3.6

V

Feedback Voltage

l

765

780

795

mV

FB Pin Bias Current

l

50

150

nA

Quiescent Current

Not Switching

1.9

2.5

mA

Quiescent Current in Shutdown

0.01

2

μA

Reference Line Regulation

0.007

%/V

Switching Frequency

685

750

36

815

kHz

kHz

Maximum Duty Cycle

l

88

91

95

95

%

%