LTC3246 datasheet(2/20 Pages) LINER

2 / 20 page

LTC3246

3246fa

For more information www.linear.com/LTC3246

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VIN, SEL1, SEL2, WDI................................. –0.3V to 42V

VOUT, OUTS/ADJ, RSTI, WT, RT, BIAS, RST. –0.3V to 6V

IRST ........................................................................10mA

VOUT Short Circuit Duration ............................. Indefinite

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

Operating Junction Temperature Range (Notes 3, 4)

(E-Grade/I-Grade) .................................. –40 to 125°C

(H-Grade)...............................................–40 to 150°C

(MP-Grade)............................................–55 to 150°C

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

(Notes 1, 2)

RSTI

BIAS

SEL2

VIN

SEL1

BIAS

OUTS/ADJ

GND

RST

C–

VOUT

C+

WDI

VIN

TOP VIEW

MSE PACKAGE

16-LEAD PLASTIC MSOP

TJMAX = 150°C, JA = 40°C/W

EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Operating Input Voltage Range

(Note 5)

2.7

VUVLO

VIN Undervoltage Lockout Threshold

2.35

2.7

IVIN

VIN Quiescent Current

Shutdown

CP Enabled, Output in Regulation

SEL1 = SEL2 = 0V

SEL1 = VIN and/or SEL2 = VIN, RSTI = 5V

1.5

µA

VHIGH

SEL1, SEL2 Input Voltage

1.1

1.6

VLOW

SEL1, SEL2 Input Voltage

0.4

0.8

ILOW

SEL1, SEL2 Input Current

VPIN = 0V

–1

µA

IHIGH

SEL1, SEL2 Input Current

VPIN = 38V

0.5

µA

Charge Pump Operation

VOUTS_5

VOUTS/ADJ Regulation Voltage

SEL1 = 0V, SEL2 = VIN

2.7V < VIN < 38V (Notes 5, 6)

4.8

5.2

VOUTS_3

VOUTS/ADJ Regulation Voltage

SEL1 = VIN, SEL2 = VIN

2.7V < VIN < 38V (Notes 5, 6)

3.17

3.43

VADJ

VOUTS/ADJ Regulation Voltage

SEL1 = VIN, SEL2 = 0V

2.7V < VIN < 38V (Notes 5, 6)

1.08

1.11

1.14

The l denotes the specifications which apply over the specified operating

junction temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, CFLY = 2.2µF, COUT = 10µF, unless otherwise noted.

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3246EMSE#PBF

LTC3246EMSE#TRPBF

3246

16-Lead Plastic MSOP

–40°C to 125°C

LTC3246IMSE#PBF

LTC3246IMSE#TRPBF

3246

16-Lead Plastic MSOP

–40°C to 125°C

LTC3246HMSE#PBF

LTC3246HMSE#TRPBF

3246

16-Lead Plastic MSOP

–40°C to 150°C

LTC3246MPMSE#PBF

LTC3246MPMSE#TRPBF 3246

16-Lead Plastic MSOP

–55°C to 150°C

Consult ADI Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

Consult ADI Marketing for information on nonstandard 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/

http://www.linear.com/product/LTC3246#orderinfo

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