LTC3441 datasheet(2/16 Pages) LINER

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LTC3441

3441fa

VIN, VOUT Voltage........................................ – 0.3V to 6V

SW1, SW2 Voltage

DC ...........................................................– 0.3V to 6V

Pulsed < 100ns ...................................... – 0.3V to 7V

SHDN/SS, MODE/SYNC Voltage ................. – 0.3V to 6V

Operating Temperature Range (Note 2) .. – 40

°C to 85°C

Maximum Junction Temperature (Note 4) ........... 125

°C

Storage Temperature Range ................ – 65

°C to 125°C

ORDER PART

NUMBER

(Note 1)

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

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

LTC3441EDE

TJMAX = 125°C

θJA = 53°C/W 1-LAYER BOARD

θJA = 43°C/W 4-LAYER BOARD

θJC = 4.3°C/W

EXPOSED PAD IS PGND (PIN 13)

MUST BE SOLDERED TO PCB

DE PART MARKING

3441

VIN

PVIN

VOUT

MODE/SYNC

SHDN/SS

GND

PGND

SW1

SW2

PGND

TOP VIEW

DE12 PACKAGE

12-LEAD (4mm

× 3mm) PLASTIC DFN

The

● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VIN = VOUT = 3.6V,unless otherwise noted.

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Start-Up Voltage

●

2.3

2.4

Output Voltage Adjust Range

●

2.4

5.25

Feedback Voltage

●

1.19

1.22

1.25

Feedback Input Current

VFB = 1.22V

Quiescent Current—Burst Mode Operation

VC = 0V, MODE/SYNC = 3V (Note 3)

μA

Quiescent Current—SHDN

VOUT = SHDN = 0V, Not Including Switch Leakage

0.1

μA

Quiescent Current—Active

MODE/SYNC = 0V (Note 3)

520

900

μA

NMOS Switch Leakage

Switches B and C

0.1

μA

PMOS Switch Leakage

Switches A and D

0.1

μA

NMOS Switch On Resistance

Switches B and C

0.10

PMOS Switch On Resistance

Switches A and D

0.11

Input Current Limit

●

3.2

Max Duty Cycle

Boost (% Switch C On)

●

Buck (% Switch A In)

●

100

Min Duty Cycle

●

Frequency Accuracy

●

0.85

1.15

MHz

MODE/SYNC Threshold

●

0.4

1.4

MODE/SYNC Input Current

VMODE/SYNC = 5.5V

0.01

μA

Error Amp AVOL

Error Amp Source Current

μA

Error Amp Sink Current

300

μA

SHDN/SS Threshold

When IC is Enabled

●

0.4

1.4

SHDN/SS Threshold

When EA is at Max Boost Duty Cycle

2.4

SHDN/SS Input Current

VSHDN = 5.5V

0.01

μA

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF

Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

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