2

LTC3427

3427fa

SHDN, FB 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

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

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

LTC3427EDC

ORDER PART NUMBER

DC PART MARKING

LBSY

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

TOP VIEW

DC PACKAGE

6-LEAD (2mm

× 2mm) PLASTIC DFN

4

5

7

6

3

2

1

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Start-Up Voltage

●

1.6

1.8

V

Output Voltage Adjust Range

●

1.8

5.25

V

Feedback Voltage

●

1.215

1.24

1.265

V

Feedback Input Current

1

50

nA

Quiescent Current—Shutdown

0.01

1

µA

Quiescent Current—Active

350

550

µA

NMOS Switch Leakage

0.1

5

µA

PMOS Switch Leakage

0.1

5

µA

NMOS Switch-On Resistance

0.525

Ω

PMOS Switch-On Resistance

0.575

Ω

NMOS Current Limit

●

500

mA

Current Limit Delay to Output

(Note 4)

40

ns

Maximum Duty Cycle

●

80

87

%

Minimum Duty Cycle

●

0%

Frequency

●

0.9

1.25

1.5

MHz

SHDN Input High

1V

SHDN Input Low

0.35

V

SHDN Input Current

0.01

1

µA

Soft-Start Time

2ms

The

ELECTRICAL CHARACTERISTICS

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/