LTC3859AL datasheet(3/38 Pages) LINER

3 / 38 page

LTC3899

3899fa

For more information www.linear.com/LTC3899

The l denotes the specifications which apply over the specified operating

junction temperature range, otherwise specifications are at TA = 25°C. (Note 2) VBIAS = 12V, VRUN1,2,3 = 5V, VEXTVCC = 0V, VDRVSET =

0V, VPRG3 = Float unless otherwise noted.

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3899EFE#PBF

LTC3899EFE#TRPBF

LTC3899FE

38-Lead Plastic TSSOP

–40°C to 125°C

LTC3899IFE#PBF

LTC3899IFE#TRPBF

LTC3899FE

38-Lead Plastic TSSOP

–40°C to 125°C

LTC3899HFE#PBF

LTC3899HFE#TRPBF

LTC3899FE

38-Lead Plastic TSSOP

–40°C to 150°C

LTC3899MPFE#PBF

LTC3899MPFE#TRPBF

LTC3899FE

38-Lead Plastic TSSOP

–55°C to 150°C

LTC3899EUHF#PBF

LTC3899EUHF#TRPBF

3899

38-Lead (5mm × 7mm) Plastic QFN

–40°C to 125°C

LTC3899IUHF#PBF

LTC3899IUHF#TRPBF

3899

38-Lead (5mm × 7mm) Plastic QFN

–40°C to 125°C

LTC3899HUHF#PBF

LTC3899HUHF#TRPBF

3899

38-Lead (5mm × 7mm) Plastic QFN

–40°C to 150°C

LTC3899MPUHF#PBF

LTC3899MPUHF#TRPBF 3899

38-Lead (5mm × 7mm) Plastic QFN

–55°C to 150°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 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/

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VBIAS

Bias Input Supply Operating Voltage Range

4.5

VFB1,2

Buck Regulated Feedback Voltage

(Note 4) ITH1,2 Voltage = 1.2V

0°C to 85°C

0.792

0.788

0.800

0.808

0.812

VFB3

Boost Regulated Feedback Voltage

(Note 4) ITH3 Voltage = 1.2V

VPRG3 = FLOAT

VPRG3 = 0V

VPRG3 = INTVCC

1.182

9.78

11.74

1.200

10.00

12.00

1.218

10.22

12.26

IFB1,2

Buck Feedback Current

(Note 4)

–2

±50

IFB3

Boost Feedback Current

(Note 4)

VPRG3 = FLOAT

VPRG3 = 0V

VPRG3 = INTVCC

±0.01

±0.05

µA

VREFLNREG

Reference Voltage Line Regulation

(Note 4) VBIAS = 4.5V to 60V

0.002

0.02

%/V

VLOADREG

Output Voltage Load Regulation

(Note 4) Measured in Servo Loop,

∆ITH Voltage = 1.2V to 0.7V

0.01

0.1

(Note 4) Measured in Servo Loop,

∆ITH Voltage = 1.2V to 2V

–0.01

–0.1

gm1,2,3

Transconductance Amplifier gm

(Note 4) ITH1,2,3 = 1.2V, Sink/Source 5µA

mmho

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