LTC3422

2

3422fa

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

0.88

1

V

(Note 3)

●

0.5

V

Output Voltage Adjust Range

2.25

5.25

V

●

2.40

5.25

V

Feedback Voltage

1.216

1.240

V

Feedback Input Current

1

50

nA

Quiescent Current—Burst Mode Operation

25

42

µA

Quiescent Current—Shutdown

0.1

1

µA

Quiescent Current—Active

0.75

1.1

mA

NMOS Switch Leakage

0.1

5

µA

PMOS Switch Leakage

0.1

10

µA

NMOS Switch On Resistance

0.20

Ω

PMOS Switch On Resistance

0.24

Ω

NMOS Current Limit—Steady State

●

1.5

A

NMOS Current Limit—Pulsed

Duty Cycle Not to Exceed 5%

2

2.5

A

NMOS Current Limit—Short Circuit

0.75

1.5

A

NMOS Burst Current Limit

600

mA

Maximum Duty Cycle

●

84

91

%

Minimum Duty Cycle

●

0%

Frequency

●

0.85

1

1.15

MHz

SYNC Input High

●

2.2

V

SYNC Input Low

●

0.8

V

SYNC Input Current

0.01

1

µA

FB, SS, BURST, SHDN Voltages ................ – 0.3V to 6V

SW Voltage

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

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

Operating Temperature Range

(Notes 2, 5) ............................................. –40

°C to 85°C

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

°C to 125°C

ORDER PART NUMBER

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

LTC3422EDD

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB

TOP VIEW

11

DD PACKAGE

10-LEAD (3mm

× 3mm) PLASTIC DFN

10

9

6

7

8

4

5

3

2

1

SYNC

FB

SW

BURST

SS

SHDN

DD PART MARKING

LBRN

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/